Answer:
If you can't afford a new laptop computer, then you haven't got 400$.
Step-by-step explanation:
The contrapositive is:
If A implies B then not B implies not A.
Find the roots and simplify the expression.
216^1/3 - 125^1/3
Answer:
1
Step-by-step explanation:
The first thing to simplify is the Exponent
If The Exponent is a fraction than the denominator of the fraction will be the power of the root and the numerator will be the power of the expression
It will be in the form
[tex] \sqrt[a]{ {x}^{b} }[/tex]
Where a is the denominator and b is the numerator of the fraction
The first expression 216^1/3 will be
[tex] \sqrt[3]{{216}^{1} } [/tex]
6×6×6=216 so the expression = 6
The second expression 125^1/3 will be
[tex] \sqrt[3]{ {125}^{1} } [/tex]
5×5×5=125 so the expression =5
216^1/3 - 125^1/3
6 - 5
1
. Given the below sequence:
-1, -3, -5, -7, . . .
(a) What are the next 3 terms?
(b) Is this an arithmetic or geometric sequence?
(c) Why (how do you know it is arithmetic or geometric)?
(d) How would you find the 27th term?
a) The next three terms are -9, -11, and -13
b) This is an arithmetic sequence
c) An arithmetic sequence is when the difference between one term and the next remains constant
d) We can make the equation y=-2x+1 where x is the term number, then we plug in 27 for x and solve for y
y=-2(27)+1
y=-54+1
y=-53
Hope this helped, and please mark as brainliest!
Find the value of X.!?
Answer:
x = 50
Step-by-step explanation:
140 = 85 + 1/2 x + 30
140 = 115 + 1/2x
25 = 1/2 x
x = 50
Multiply the following 11 x square Y and 2 x square y square
Answer:
[tex]22 x^4y^3[/tex]
Step-by-step explanation:
[tex]11x^2y\times 2x^2y^2\\[/tex]
by multiplying
[tex]=11 \times 2 \times x^2 \timesx^2 \times y \times \times y^2\\=22 \times x^{2+2}y^{1+2}\\=22 x^4y^3[/tex]
Engs
Diuje
Ocrying
apporturomrmace
What is the central idea in this
passage?
Which phrase best supports this central
idea?
(1) But when cities or countries are accustomed to live
under a prince, and his family is exterminated, they
being on the one hand accustomed to obey and on the
other hand not having the old prince, cannot agree in
making one from amongst themselves, and they do not
know how to govern themselves. (2) For this reason they
are very slow to take up arms, and a prince can gain them
to himself and secure them much more easily. (3) But in
republics there is more vitality, greater hatred, and more!
desire for vengeance, which will never permit them to
allow the memory of their former liberty to rest; so that
the safest way is to destroy them or to reside there.
-The Prince,
Niccolò Machiavelli
Intro
Done
Answer:
1: a prince can use violence to keep control.
2: the safest way is to destroy them.
Answer:
For those who need this:
Step-by-step explanation:
Which text structure does Machiavelli use in this passage?
✔ cause and effect
Which signal word or words help you identify this structure?
✔ “for this reason”
How does this text structure help the author convey his central idea?
✔ It explains why destroying a state is successful.
Need help ASAP please
The value of angle W, written as m∠W is 78
How to obtain m∠W?
First, we shall determine m∠Y. Details below:
m∠XYZ = 137m∠Y =?m∠XYZ + m∠Y = 180 (straight line angle)
137 + m∠Y = 180
Collect like terms
m∠Y = 180 - 137
m∠Y = 43
Finally, we shall determine the value of m∠W. This is shown below:
m∠X = 59m∠Y = 43m∠W =?m∠X + m∠Y + m∠W = 180
59 + 43 + m∠W = 180
102 + m∠W = 180
Collect like terms
m∠W = 180 - 102
m∠W = 78
PLEASE HELP !!!!!!
I’LL GIVE BRAINIEST !!!!!
I NEED THE ANSWER ASAP !!!!
Answer:
okay ik the answer
Step-by-step explanation:
up ur butt and to the left
lol jk the answer is
the possibly is 15% since their is a bunch
Answer:
8/15
Step-by-step explanation:
there are 75 tickets in both the baskets and she put a total of 40 tickets into both baskets. that makes 40/75 wich reduces down to 8/15
Simplify the expression. 6m + 10 - 10m
Answer:
I believe the answer is 10 - 4m.
Step-by-step explanation:
6m + 10 - 10m
-10m + 6m = -4m
10 - 4m
On simplifying the expression. 6m + 10 - 10m we get, 10 - 4m.
Given : 6m + 10 - 10m
How to simplify expression?To simplify any linear expression followings are the steps:-
Firstly remove grouping symbol i.e. brackets or parentheses after multiplying factors.Then we use the exponent rule to remove groups if any term contains exponents.Then we also merge the same term by the help of addition or subtraction.Last term combine the constantOn simplifying we get,
[tex]\rm =6m + 10 - 10m\\-10m + 6m = -4m\\=10 - 4m[/tex]
Therefore, For the expression. 6m + 10 - 10m we get, 10 - 4m.
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Please answer 7 and 8 !!!!!!
Answer:
B and C
Step-by-step explanation:
7 would be B. m = 2
8 would be C m = -1/2
If a line is parallel, then the slop is the same. If it is perpendicular, the it will be the opposite sign and the reciprocal. So parallel would be 2 and perpendicular would be -1/2
Hope this helped! :)
Answer:
7. m= -2
8. m= -1/2
Step-by-step explanation:
picture is taken
What is (-5.6) Please help
Answer:
Step-by-step explanation:
-5 means the x coordinate
and 6 means the y coordinate
Volunteers for a political campaign gave out 21/38 of their fliers. They gave out the remaining 612 fliers in another neighborhood. What is the total number of fliers they gave out
Answer:
The total number of fliers the volunteers gave out is 1,368
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Amount of fliers the volunteers gave for a political campaign = 21/38
Remaining 612 were given out in another neighborhood
2. What is the total number of fliers they gave out?
x = Total of fliers
Let's solve for x, this way:
x - 21x/38 = 612
38x - 21x = 612 * 38 (38 is the Lowest Common Denominator)
17x = 23,256
x = 23,256/17
x = 1,368
The total number of fliers the volunteers gave out is 1,368
. Cole spent some time
working on his
history homework. Then, he
spent 5/12
hour working on his Spanish
homework. Cole spent 1 hour
on
homework. What fraction of an
hour
did Cole spend on history? A
2/12 B5/12 C7/12 D12/12
Final answer:
Cole spent 7/12 hours on history homework after spending 5/12 hours on Spanish homework, with the total homework time being 1 hour.
Explanation:
The student asked: Cole spent some time working on his history homework. Then, he spent 5/12 hour working on his Spanish homework. Cole spent 1 hour on homework. What fraction of an hour did Cole spend on history? To find the time Cole spent on history homework, we subtract the time he spent on Spanish homework from the total homework time. Cole's total homework time is 1 hour, which is equivalent to 12/12 hours.
Therefore, the time spent on history homework is: 12/12 hours (total time) - 5/12 hours (Spanish homework) = 7/12 hours on history homework. So, the correct answer is C) 7/12.
Troy took out a loan for $1850 at a 9.6% APR, compounded monthly, to buy a
television. If he will make monthly payments of $102.50 to pay off the loan,
which of these groups of values plugged into the TVM Solver of a graphing
calculator could be used to calculate the number of payments he will have to
make?
EN
V
.CN
O A. N=;1% = 9.6; PV=-1850; PMT=102.5; FV=0; P/Y=12; C/Y=12;
PMT:END
O B. N=; 1% = 0.8; PV=-1850; PMT=102.5; FV=0; P/Y=12; C/Y=12;
PMT:END
O C. N=; 1% = 9.6; PV=-1850; PMT=102.5; FV=0; P/Y=1; C/Y=12;
PMT:END
O D. N=; 1% = 0.8; PV=-1850; PMT=102.5; FV=0; P/Y=1; C/Y=12;
PMT:END
Answer:A
N=; 1% = 9.6; PV= -180; PMT 102.5; FV=0; P/Y=12, C/Y=12;PMT ;END
Final answer:
The correct TVM Solver setup for Troy's loan has a monthly interest rate of 0.8% and the rest of the parameters reflect the details of the loan and payment structure, making Option B the right choice.
Explanation:
To calculate the number of monthly payments Troy will have to make to pay off the loan for the television, we can use the Time Value of Money (TVM) formula where certain values will be plugged into the TVM Solver of a graphing calculator. Given the loan amount ($1850) and APR (9.6% annually, compounded monthly), we have to adjust the annual percentage rate to a monthly rate by dividing it by 12 months, resulting in a 0.8% monthly interest rate. Therefore, the values entered should reflect a monthly rate, not an annual rate.
The correct setup for the TVM Solver would be:
N=?I%=0.8 (9.6% annual rate divided by 12 months)PV=-1850 (Present Value of the loan, negative because it's money owed)PMT=102.5 (Monthly payment)FV=0 (Future Value, which should be zero after the loan is paid off)P/Y=12 (Payments per year)C/Y=12 (Compounding periods per year)PMT:END (Payments are made at the end of the period)Therefore, the correct answer is Option B, where the monthly interest rate is accurately represented.
What is the common difference in the arithmetic sequence 10, 8, 6, 4, ...?
20pts
Answer:common difference is -2
Step-by-step explanation:
Answer:common difference is -2
Step-by-step explanation:
The sequence is arithmetic if the difference between consecutive terms is constant.
The admission fee to the carnival is $4.50 for children and $7.25 for adults. If a large group purchased 28 tickets and paid $159 how many adult tickets did they purchase?
Answer: 11.636 = 12 tickets to a whole figure
Step-by-step explanation:
Let the number of adult tickets be x and y represent children tickets.
From the question;
x + y = 28 ....... equation (i)
(7.25*x) + (y*4.50) = 158
7.25x + 4.50y = 158 ........ equation (ii)
From equation (i);
x + y = 28
y = 28 - x ...... equation (iii)
Put equation (iii) into equation (ii)
7.25x + 4.50(28 - x) = 158
7.25x + 126 - 4.50x = 158
Collect like terms and subtract
2.75x = 32
x = 11.636 approximately 12 to a round number.
Put x = 11.636 into equation (i)
11.636 + y = 28
y = 28 - 11.636
y = 16.364 approximately 16 to a whole number
Final answer:
To find the number of adult tickets purchased, we can set up two equations: C + A = 28, and 4.50C + 7.25A = 159. By solving the equations, we determine that 12 adult tickets were purchased for the carnival.
Explanation:
The question asks us to determine the number of adult tickets purchased for a carnival, given the cost of children's tickets, the cost of adult tickets, and the total amount paid for a group of tickets. Let's take the number of adult tickets as A and the number of children's tickets as C. According to the given information, the admission fee for children is $4.50 and for adults is $7.25. Also, we know that 28 tickets were purchased for a total of $159.
We can set up the following system of equations based on the information provided:
C + A = 28 (since the total number of tickets is 28)
4.50C + 7.25A = 159 (this represents the total cost of all tickets)
We can solve this system of equations using substitution or elimination method. If we rearrange the first equation to get C = 28 - A and substitute it into the second equation, we get:
4.50(28 - A) + 7.25A = 159
126 - 4.50A + 7.25A = 159
2.75A = 33
A = 33 / 2.75
A = 12
Hence, the number of adult tickets purchased is 12.
Complete the square to determine the minimum or maximum value of the function defined by the expression.
x2 + 4x + 3
A) maximum value at 1
B) minimum value at 1
C) maximum value at −1
D) minimum value at −1
The minimum value at -1 ⇒ D
Step-by-step explanation:
The completing square form of ax² + bx + c is a(x - h)² + k, where
[tex]h=\frac{-b}{2a}[/tex] k is the value of of the expression when x = hk is minimum if a > 0 and maximum if a < 0∵ The expression is x² + 4x + 3
∴ a = 1 , b = 4 , c = 3
- Use the rule above to find h
∵ [tex]h=\frac{-4}{2(1)}[/tex]
∴ h = -2
- To find k substitute x by the value of h
∵ k = (-2)² + 4(-2) + 3 = 4 - 8 + 3
∴ k = -1
- Substitute h and k in the form of the completing square
∵ a(x - h)² + k = 1(x - -2)² + (-1)
∴ a(x - h)² + k = (x + 2)² - 1
∴ x² + 4x + 3 = (x + 2)² - 1
∵ The completing square is (x + 2)² - 1
∵ a = 1 ⇒ greater than zero
∴ The value is minimum
- The minimum value is the value of k
∵ k = -1
∴ The minimum value of the function is -1
The minimum value at -1
Learn more:
You can learn more about the quadratic function in brainly.com/question/9390381
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consider the polynomial equation x(x-3)(x+6)(x-7)=0 which of following are zeros in the equation?
Answer:
x=0,3,-6,7
Step-by-step explanation:
set each factor equal to zero and then solve for x.
The zeroes of the polynomial are 0, 3, -6 and 7.
What is Polynomial?An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial (No division operation by a variable).
We have the polynomial in form
x(x-3)(x+6)(x-7)=0
As, we can see the polynomial is of degree 4.
Also, the polynomial is in the form of factors.
Now, to find the zeros of the polynomial we compare each factor to 0.
x= 0
x -3 = 0
x= 3
and, x + 6= 0
x = -6
and, x -7 = 0
x = 7
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Write an equation for the line that passes through (2, 4) and (1, 0).
Equation of the line is y = 4x + 4
Step-by-step explanation:
Step 1: Given that the line passes through (2,4) and (1,0). Equation in slope-intercept form is y = mx + bStep 2: Find slope, m using the formula m = (y2 - y1)/(x2 - x1)⇒ m = (0 - 4)/(1 - 2) = -4/-1 = 4
Step 3: Find the y-intercept.⇒ b = 4
Step 3: Substitute the values in the equation⇒ y = 4x + 4
Will MARK BRAINLYEST
Suppose that it takes Calvin 3 hours to wax a car if he works alone and it takes Alvin 5 hours to wax a car if he works alone. How long does it take them to wax a car if they work together? Write an equation and solve for the unknown. Show your work.
Answer:
It will take 3.6 hours to wax a car if they work together.
Step-by-step explanation:
Calvin one hour work = [tex]\frac{1}{3}[/tex]
Alvin one hour work = [tex]\frac{1}{5}[/tex]
To find out how much they can do together per hour,
We have to add [tex]\frac{1}{3}[/tex] and [tex]\frac{1}{5}[/tex]
= [tex]\frac{1}{3} + \frac{1}{5} = \frac{(5 + 3)}{15}[/tex]
= [tex]\frac{8}{15}[/tex] --------------(1)
They can do [tex]\frac{8}{15}[/tex] of the job per hour.
If "t" is the time taken to finish the job together, then one hour work
[tex]\frac{1}{t}[/tex] ------------------------(2)
Now we have to find the value of "t" by setting the expression (1) and (2) equal.
[tex]\frac{8}{15} = \frac{1}{t}[/tex]
It can solve by flipping the equation;
[tex]\frac{t}{1} = \frac{18}{5}[/tex]
t = 3.6 hours
It will take 3.6 hours to wax a car if they work together.
Match the verbal expression (term) with its algebraic expression (definition).
Match Term Definition
Some number increased by two A) a ÷ 2
A variable decreased by two B) x − 2
Product of an unknown value and two C) y2
Quotient of some number and two D) 2z
An unknown value squared E) b + 2
Some number increased by two = b + 2
A variable decreased by two = x - 2
Product of an unknown value and two = 2z
Quotient of some number and two = [tex]a \div 2[/tex]
An unknown value squared = [tex]y^2[/tex]
Solution:
Some number increased by two
Let the number be "b"
Therefore, "b" is increased by two
Here, "increased" means added
Thus we get,
Some number increased by two = b + 2
A variable decreased by two
Let the number be "x"
Therefore, "x" is decreased by two
Decreased means reduced or subtraction
Thus we get,
A variable decreased by two = x - 2
Product of an unknown value and two
Let the unknown value be "z"
Product means "multiplication"
Therefore, product of "z" and 2
Product of an unknown value and two = 2z
Quotient of some number and two
Let the some number be "a"
Quotient means result of division
Quotient of some number and two = [tex]a \div 2[/tex]
An unknown value squared
Let the unknown value be "y"
Squared means multiplied by itself
An unknown value squared = [tex]y^2[/tex]
Answer
answer above is correct
Step-by-step explanation:
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each equation with the correct solution.
I
=
-8
=
8
m
=
9
I
=
15
3150 – 9) = 2(5x + 6)
4(35 + 5) – 3 = 9.5 – 7
-
5(5 + 7) – 3(3 – 4) = 7x +:
The solutions are [tex]x=15, x=-8[/tex] and [tex]x=9[/tex]
Explanation:
Part a: The equation is [tex]\frac{1}{3} (5x-9)=2(\frac{1}{3} x+6)[/tex]
Let us find the value of x.
Multiply the terms within the bracket, we get,
[tex]\frac{5}{3} x-3=\frac{2}{3} x+12[/tex]
Subtracting both sides by [tex]\frac{2}{3} x[/tex], we have,
[tex]\frac{3}{3} x-3=12[/tex]
Adding both sides by 3,
[tex]x=15[/tex]
Thus, the solution of the equation [tex]\frac{1}{3} (5x-9)=2(\frac{1}{3} x+6)[/tex] is [tex]x=15[/tex]
Part b: The equation is [tex]4(3x+5)-3=9x-7[/tex]
Multiply the terms within the bracket, we get,
[tex]12x+20-3=9x-7[/tex]
Subtracting both sides by 9x, we have,
[tex]3x+17=-7[/tex]
Subtracting both sides by 17,
[tex]3x=-24[/tex]
Dividing both sides by 3, we have,
[tex]x=-8[/tex]
Thus, the solution of the equation [tex]4(3x+5)-3=9x-7[/tex] is [tex]x=-8[/tex]
Part c: The equation is [tex]5(x+7)-3(x-4)=7x+2[/tex]
Multiply the terms within the bracket, we get,
[tex]5x+35-3x+12=7x+2[/tex]
Adding the like terms, we have,
[tex]2x+47=7x+2[/tex]
Subtracting both sides by 2 and 2x, we get,
[tex]45=5x[/tex]
Dividing both sides by 5, we have,
[tex]x=9[/tex]
Thus, the solution of the equation [tex]5(x+7)-3(x-4)=7x+2[/tex] is [tex]x=9[/tex]
This question requires understanding of mathematical equations and their solutions. The answer derives from equations wherein you first simplify inside parentheses, follow with multiplications or other operations, then isolate variables. The solutions to these equations can then be matched with each one.
Explanation:The task here is drag the tiles to the correct boxes to complete the pairs and match each equation with the correct solution. This is a mathematical practice that requires algebraic methods. Let's solve the equations one by one:
Example 1: 5(3150 - 9) = 2(5x + 6)
First, perform the functions inside the parentheses, then distribute accordingly. Afterwards, isolate the variable to one side of the equation to find its value:
Example 2: 4(35 + 5) - 3 = 9.5 - 7
Follow the same steps as above to match this equation with its solution:
Example 3: 5(5 + 7) - 3(3 - 4) = 7x +:
Again, simplify inside the parentheses first, then distribute and isolate the variable. This process will provide solutions to match with each equation:
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Can someone help please? I don’t understand this.
Answer:
PS = 28 units.
Step-by-step explanation:
See the attached diagram.
This is a figure of rectangle with length (3y + 3) and width 4y.
Now, the perimeter of the rectangle is 2[(3y + 3) + 4y] = 2(7y + 3)
The perimeter of the rectangle is given to be 104 units.
So, 2(7y + 3) = 104
⇒ 7y + 3 = 52
⇒ 7y = 49
⇒ y = 7
Therefore, PS = 4y = 4(7) = 28 units. (Answer)
how many factors does 5 times a number have?
Final answer:
The number of factors of 5 times a number depends on the prime factorization of that number. If the second number, 'n', is prime, the product has exactly four factors. However, if 'n' is composite, the number of factors would be the product of the incremented exponents of its prime factors.
Explanation:
The question is asking about the number of factors of a product that involves the number 5 and an unspecified number, let's call it 'n'. So we are looking at the number 5n. The number of factors a product has is related to the prime factorization of that product. The prime factorization of 5 is simple since 5 is a prime number itself. If 'n' is also a prime number, then 5n would have four factors: 1, 5, n, and 5n. However, if 'n' is composite, its prime factorization would need to be considered in finding the total number of factors. To count the factors, you would multiply the exponents of the prime factors, each incremented by one. For example, if n is a prime number, its exponent is 1, and 5's exponent would also be 1, so (1+1)*(1+1) gives us a total of 4 factors.
Which solution to the equation StartFraction 1 Over x minus 1 EndFraction = StartFraction x minus 2 Over 2 x squared minus 2 EndFraction is extraneous?
Answer:
Therefore x = 1 is an extraneous solution.
Step-by-step explanation:
The solution to the equation StartFraction 1 Over x minus 1 EndFraction = StartFraction x minus 2 Over 2 x squared minus 2 EndFraction
[tex]\Rightarrow \frac{1}{x - 1} = \frac{x- 2}{2x^2-2} \hspace{0.3cm} \Rightarrow \hspace{0.3cm} 2x^2 - 2 = (x-1)(x-2)[/tex]
therefore [tex]2x^2 - 2 = x^2 - 3x + 2 \hspace{0.3cm} \Rightarrow \hspace{0.3cm} x^2 + 3x - 4 = 0[/tex]
therefore [tex]x^2 + 3x - 4 = 0 \hspace{0.3cm} \Rightarrow = \hspace{0.3cm} (x-1)(x+4) = 0 \\[/tex]
therefore x = 1 and x = -4 but we can see that if we place x = 1 in the original solution then [tex]\frac{1}{x-1} = \frac{1}{1-1} = \frac{1}{0}[/tex] which is indeterminate.
Therefore x = 1 is an extraneous solution.
Answer:
C. x = 1
Step-by-step explanation:
Which solution to the equation StartFraction 1 Over x minus 1 EndFraction = StartFraction x minus 2 Over 2 x squared minus 2 EndFraction is extraneous?
x = 1 and x = –4
neither x = 1 or x = –4
x = 1
x = –4
what is the energy stored in a spring when it is compressed 5mm by a 60N force?
Answer:
can you elaborate?
Step-by-step explanation:
Answer: 0.15J
Step-by-step explanation:
Fom th question, we obtained the following information:
F = 60N
e = 5mm
We need to covert 5mm to m
1mm = 0.001m
5mm = 5 x 0.001 = 0.005m
We need to find the spring constant (K) for the spring. This is illustrated below:
K = F / e
K = 60 / 0.005 = 12000N/m
Now we can obtain the energy stored on the spring by the doing following:
Energy = 1/2 Ke^2
Energy = 1/2 x 12000 x (0.005)^2
Energy = 0.15J
Which lines are parallel.!?
If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nearest tenth if necessary
Answer:
Therefore side B= 11.18 and side A=2×11.18=22.36.
Step-by-step explanation:
Given,side A is twice as long as B and C is 25.
Let side B= x
Then side A = 2x
Using Pythagorean Theorem,
A²+B²=C²
⇔(2x)²+x²=25²
⇔4x²+x²=625
⇔5x²=625
⇔x²=125
⇔x=√125
⇔x =11.18
Therefore side B= 11.18 and side A=2×11.18=22.36.
Answer:
The length of side A is 22.4 and length of side B is 11.9.
Step-by-step explanation:
Given:
If side A is twice as long as B and C is 25.
Solve by using the Pythagorean Theorem.
Now, to get the lengths of side A and side B.
As side C = 25.
Let the side B be [tex]a.[/tex]
As, given A is twice as long as B.
So, the side A be [tex]2a.[/tex]
So, we solve by using Pythagorean Theorem:
A² + B² = C²
[tex](2a)^2+(a)^2=(25)^2[/tex]
[tex]4a^2+a^2=625[/tex]
[tex]5a^2=625[/tex]
Dividing both sides by 5 we get:
[tex]a^2=125[/tex]
So, using square root on both sides we get:
[tex]a=11.18.[/tex]
Rounding to the nearest tenth B = 11.9.
Now, to get A by putting the value of [tex]a[/tex]:
[tex]2a\\=2\times 11.18\\=22.36.[/tex]
Rounding to the nearest tenth A = 22.4.
Therefore, the length of side A is 22.4 and length of side B is 11.9.
Kelly has a rock garden with a length of 6 feet. She constructs a scale model of the rock garden using the
scale 1 inch:2 feet.
(a) What is the length of the garden in her model? Show your work, including your proportion
(b) If the width is 5 inches for the scale model and the scale is still 1 inch to 2 feet, will her scale model
drawing fit on a piece of paper that is 8.5 inches by 7 inches? Why or why not?
Answer:
(a) 3 inches(b) Her scale model drawing will not fit on a piece of paper that is 8.5 inches by 7 inches because the dimensions are not proportional to the scale.Explanation:
(a) What is the length of the garden in her model? Show your work, including your proportion
1. Scale:
model length / real length = 1 inch / 2 feet2. Proportion:
Naming x the model length:
1 inch / 2 feet = x / 6 feetCross multiply:
1 inch × 6 feet = 2 feet × xDivide both sides by x:
x = 1 inch × 6 feet / 2 feet = 3 inch.Answer: 3 inches
(b) If the width is 5 inches for the scale model and the scale is still 1 inch to 2 feet, will her scale model drawing fit on a piece of paper that is 8.5 inches by 7 inches? Why or why not?
Both the width and the length must use the same scale, thus the corresponding sides of the scale model and the drawing must be proportional.
In the model the ratio of the length to the width is 3 inch / 5 inch
In the paper the ratio of the length to the width is 8.5 inch / 7 inch
Hence, you can see that in the model the length (mumerator of the fraction) is less than the width (denominator) while in the paper it is the opposite. Bieng the two ratios different, they are not proportional, and you conclude that her scale model drawing will not fit on a piece of paper that is 8.5 inches by 7 inches.
For the sequence of even natural numbers 6,8,10,12,... find a13, the 13th term.
A) 36
B)30
C) 32
D) 34
b
Step-by-step explanation:
the pattern goes by 2s so you do 13 times 2 plus 4 which would be your 0th term because six is your first term so you add 4 and 26 you get 30 and it is not 33 because that is the 14th term
A social media account password includes a number from 0 to 9, an uppercase letter, a lowercase letter, and a special character, in that order.
a. There are 223,080 password combinations. How many special characters are there?
b.What is the probability of guessing the account password if you know the number and uppercase letter, but forget the rest? Express your answer as a fraction in the simplest form.
The probability is _____
.
A. There are 33 special characters.
B. The probability of guessing the password under the given circumstances is 1 out of 858 combinations.
Step-by-step explanation:
Step 1; First we need to determine all the possible values that can come in each space of the password.
From 0 to 9, there are a total of 10 values.
For uppercase letters, there are a total of 26 values from A, B, C, D ...Z
For lower case letters, there are also a total of 26 values from a, b, c, d ...z.
So out of these three characters, we have a total of 10 × 26 × 26 = 6,760 different combinations.
If there are 223,080 password combinations we need to divide this by 6,760 to calculate the possible values of the special characters.
6,760 × Number of possible special characters = 223,080,
Number of special characters = [tex]\frac{223,080}{6,760}[/tex] = 33. So there are 33 special characters.
Step 2; If the number and uppercase values are known then the various lowercase letters and special characters are the unknown values.
The number of possible combinations = number of lowercase letters × number of special characters = 26 × 33 = 858.
So the probability of guessing the password is 1 out of 858 combinations.
(a) There are 216,320 special characters in the password combinations.
(b) The probability of guessing the account password with knowledge of the number and uppercase letter, but not the rest, is [tex]\(\frac{320}{11}\)[/tex].
Let's solve each part of the problem:
(a) Number of Special Characters:
Given that there are 223,080 password combinations and the special character comes last, it means there are 10 possible numbers (0-9), 26 possible uppercase letters, and 26 possible lowercase letters, leaving the remaining positions for special characters. Therefore, the number of special characters is:
[tex]\[ \text{Number of special characters} = 223,080 - (10 \times 26 \times 26) = 223,080 - 6760 = {216,320} \][/tex]word:
If you know the number and uppercase letter but forget the rest, you only need to guess the lowercase letter and special character. The total number of possible lowercase letters is 26, and the total number of possible special characters is 216,320 (calculated in part a).
Therefore, the probability of guessing the account password is:
[tex]\[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{26 \times 216,320}{223,080} \]\[ \text{Probability} = \frac{6,387,520}{223,080}[/tex]
=320/11