Answer:4
Step-by-step explanation:What +7=11 bause the () make a multiplication and 11x3=33
Answer:
n=4
Step-by-step explanation:
3(n+7)=33
Lets mulitply..
3n+21=33
Then we need 3n alone...
To do this subract 21 from 33 and you get 12.
3n=12
Divide 3n by 3 and 12 by 3.
n=4
The solutions to the equation 2x^2+x-1=2 are x=-3/2 or x= __?__
Answer:
x₁ = 1
x₂ = - 3/2
Step-by-step explanation:
2x² + x - 1 = 2
2x² + x - 1 - 2 = 0
2x² + x - 3 = 0
2x² + 3x - 2x - 3 = 0
x(2x + 3) - (2x + 3) = 0
(x - 1)(2x + 3) = 0
x - 1 = 0 => x₁ = 1
2x + 3 = 0 => 2x = - 3 => x₂ = - 3/2
Answer:
Step-by-step explanation:
hello :
look this solution
State the first step in solving the equation. - 1/5y + 2 = -3
a. subtract two from both sides
b. multiply both sides by -1/5
c. divide both sides by -1/5
d. add two to each side
Find decimal notation 1.29%
1.29 % is converted to decimal as 0.0129
Solution:
"Percent" means "per 100" or "over 100"
To convert 1.29% to a decimal rewrite 1.29 percent in terms of per 100 or over 100
Given percentage is 1.29 %
1.29 % = 1.29 over 100
[tex]1.29 \% = \frac{1.29}{100}[/tex]
1.29 over 100 is the same as 1.29 divided by 100
Completing the division we get:
[tex]1.29 \% = \frac{1.29}{100} = 0.0129[/tex]
Thus the given 1.29 % is converted to decimal as 0.0129
Which algebraic expression represents the phrase "two times the quantity of a number minus 12"?
2y - 12
2(y -12)
2ly +12)
2y + 12
Answer:
the correct answer is B
All employees at three stores of a large retail chain were asked to fill out a survey.
Is it random, systematic, stratified, or cluster?
Answer:
Cluster
Step-by-step explanation:
Random: Each element in the population has an equal probability of selection, and each combination of elements has an equal probability of selection. For instance picking a picking name from a hat.
Stratified: Divide population into groups called strata that differ in important ways. For instance, for a population of a state, male and female strata. for people working in a city, resident and non-resident strata
Systematic: Each element has an equal probability of selection, but combinations of elements have different probabilities
Cluster: this is a form of random sampling. Population is divided into groups, usually geographic or organizational
Change 0.26 into a
fraction
13/50
26/100
52/200
etc.
Answer:
13/50
Step-by-step explanation:
26/100 = 13/50
What is the solution to this equation? x/-5=15
Answer:
x = -75
Step-by-step explanation:
x/-5=15
x = 15 x -5
x = -75
Answer:
-75
Step-by-step explanation:
Step by step solution :
Step 1 :
x
Simplify ——
-5
Equation at the end of step 1 :
x
—— - 15 = 0
-5
Step 2 :
Rewriting the whole as an Equivalent Fraction :
2.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using -5 as the denominator :
15 15 • -5
15 = —— = ———————
1 -5
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x • -1 - (15 • 5) -x - 75
————————————————— = ———————
5 5
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
-x - 75 = -1 • (x + 75)
Equation at the end of step 3 :
-x - 75
——————— = 0
5
Step 4 :
When a fraction equals zero :
4.1 When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
-x-75
————— • 5 = 0 • 5
5
Now, on the left hand side, the 5 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
-x-75 = 0
Solving a Single Variable Equation :
4.2 Solve : -x-75 = 0
Add 75 to both sides of the equation :
-x = 75
Multiply both sides of the equation by (-1) : x = -75
One solution was found :
x = -75
brainlest please
Solve: (x + 1)(x – 5) = 0
Answer:
x = -1 or 5
Step-by-step explanation:
From the expression (x +1) (x - 5)
We’re to solve for x.
Therefore,
x + 1 = 0
Subtract one from both sides
x + 1 - 1 = 0 - 1
x = -1
x - 5 = 0
Add five to both sides
x - 5 + 5 = 0 + 5
x = 5
If a point is chosen inside the circle, what is the probability that it will also be inside the square?
The probability that a point chosen inside a circle will also be inside a square is π/4.
Explanation:The probability that a point chosen inside a circle will also be inside a square can be determined by comparing the areas of the circle and the square. Let's assume that the circle has a radius of r and the square has sides of length 2r. The area of the circle is πr2 and the area of the square is (2r)2 = 4r2. Therefore, the probability of the point being inside the square is given by the ratio of the area of the circle to the area of the square: P = (πr2) / (4r2) = π/4.
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Which numbers are rational? Select all that apply
A. 3.14
B. Square root of 50
C. 2.33333
D. Square root of 144
Answer:
A. 3.14
C. 2.33333
D. Square root of 144
Step-by-step explanation:
A. 3.14 true
B. Square root of 50 false because 50 is not a perfect square
C. 2.33333 true
D. Square root of 144 true because √144 = 12
construct a parallelogram whose sides BC=3.5cm CD=4cm BD=5.2cm
Answer:
Cd=4cm
Step-by-step explanation:
Properties. convex. In Euclidean geometry, a parallelogram is a simple (non- self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. And Try TutorMe IS THE BEST WEBSIT AND PLZ MAKE ME THE Brainliest
How do you find a volume of a cone?
Answer:
V = (1/3)πr²h
Step-by-step explanation:
The volume of a cone is 1/3 the volume of a cylinder with the same radius and height.
Cylinder Volume = πr²h
Cone Volume = (1/3)πr²h
where r is the radius (of the base), and h is the height perpendicular to the circular base.
_____
Comment on area and volume in general
You will note the presence of the factor πr² in these formulas. This is the area of the circular base of the object. That is, the volume is the product of the area of the base and the height. In general terms, ...
V = Bh . . . . . for an object with congruent parallel "bases"
V = (1/3)Bh . . . . . for a pointed object with base area B.
This is the case for any cylinder or prism, even if the parallel bases are not aligned with each other. (That is, it works for oblique prisms, too.)
Note that the cone, a pointed version of a cylinder, has 1/3 the volume. This is true also of any pointed objects in which the horizontal dimensions are proportional to the vertical dimensions*. (That is, this formula (1/3Bh), works for any right- or oblique pyramid-like object.)
__
* in this discussion, we have assumed the base is in a horizontal plane, and the height is measured vertically from that plane. Of course, any orientation is possible.
What is the interquartile range of this data set -5,-4,-3,-2,-1,0,1,2,3,4,5,7,7,7
Answer:
IQR=5+2=7 because you have to find the median and the median below the median and above the median to get 5 and a negative two and 5 subtract a negative is the same as adding a positive so then you get 7.
Step-by-step explanation:
GIVING BRAINLIEST pls explain, Consider these proportions: 1:3 1.5:4.5 2:6 2.5:7.5 Which of the following proportions belongs to the above set? A 5:15 B 6:21 C 7:21 D 8:34 a. A and B c. B and D b. A and C d. C and D
Answer:
B. A and C
Step-by-step explanation:
1:3, 1.5:4.5, 2:6, 2.5:7.5, 3:9, 3.5:10.5, 4:12, 4.5:13.5, 5:15, 5.5:16.5, 6:18, 6.5:19.5, 7:21
+.5:+1.5
Marcus ran to the park and then walked to the store. He
ran 3 times as long as he walked. The total time spent
walking and running was 24 minutes. What equation is
used to solve for how long it took Marcus to walk from the
park to the store?
Answer:
Step-by-step explanation:
The answer is 24 x 3 or 3 x 24. It says that he ran 3 times and it took 24 minutes. 3 x 24 is 72
Answer:
Step-by-step explanation:
The answer is 24 x 3 or 3 x 24. It says that he ran 3 times and it took 24 minutes. 3 x 24 is 72
hope this helps
$55 per gallon. 1 gallon covers 100sqft. What is the price per sqft?
The price per square foot is 0.55$
Step-by-step explanation:
We can solve this problem by applying the rule of three.
In fact, we know that:
- The price per 1 gallon is $55
- The area covered by 1 gallon is [tex]100 ft^2[/tex]
So this means that the price per [tex]100 ft^2[/tex] (1 gallon) is $55.
Here we want to find the price per square foot, so we can write:
[tex]\frac{x}{1}=\frac{55}{100}[/tex]
And solving for x, the price per square foot, we find:
[tex]x=\frac{55}{100}=0.55[/tex]
So, the price per square foot is 0.55$.
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Final answer:
The price per square foot for paint that costs $55 per gallon and covers 100 square feet is $0.55.
Explanation:
To calculate the price per square foot for paint that costs $55 per gallon and covers 100 square feet, we need to divide the total cost by the total coverage area. Here is the step-by-step calculation:
Determine the total cost of one gallon of paint: $55
Determine the total coverage of one gallon of paint: 100 square feet
Calculate the price per square foot: $55 ÷ 100 sqft = $0.55 per sqft
Therefore, the price per sqft of paint is $0.55.
21. You are designing a chute for loading
grain into rail cars. The cars have a round
hatch 60 cm in diameter. The chute will
have a square cross section. Find the side
length of the largest chute that will fit into
the hatch. Round your answer to the
nearest centimetre.
60 cm
- -
-
-
-
-
-
Answer:
Step-by-step explanation:
Check attachment for solution
A line represents a proportional relationship. Which set of points could be on the line? A) (−4, −2), (2, 1), (6, 3), (14,7) B) (6, 8), (4, 0), (18, 24), (20, 26) C) (3, 6), (4, 8), (9, 4), (11, 2) D) (1, 1), (2, 1), (3, 3), (4, 2)
Answer:
The answer for this question is a because it shows the proportional relationship of half of each number
Answer: B
Step-by-step explanation:
Please help! AREA OF COMPOSITE FIGURES, what is the area of this figure in photo!???
A.) 49.5in²
B.) 66.5in²
C.) 84 in²
D.) 91 in²
Answer:
D. 91 in.^2
Step-by-step explanation:
We have two shapes, a square and a triangle.
Area of a square = lw
Area of a triangle = (lw)1/2
Starting off with the square...
A = lw
A = 7 x 7
A = 49
Next with the triangle...
A = (lw)1/2
A = (12 x 7)1/2
A = (84)1/2
A = 42
Add together the areas...
42 + 49
91 in^2
a cell phone plan charges $39.90 a month, plus $0.05 per text message Which expression can be solved to find how many text messages ,x, can be sent while still keeping the monthly bill under $50
X=20
Step-by-step explanation:
39.90-50= 10.1
10.1÷0.05=202
X=202 texts
Check work 0.05×202=10.1 + 39.90=50
A basket contains 6 peaches and 8 plums. What is the ratio of peaches to total pieces of fruit.
Answer:
3:7
Step-by-step explanation:
A basket has:
6 peaches
8 plums
The total amount of fruits is
6+8= 14
The ratio of peaches to total pieces of fruit is:
6:14
3:7
What fraction is equivalent to 4/12
fractions include 1/3,8/24,12/36 and so on
1/3 because 4÷4=1 and 12÷4=3 so it is a total of 1/3
43 POINTS I'M BEING TIMED
In the problems below, f(x) = log₂x and
g(x) = log₁₀x
Which point do the graphs of f and g have in common?
Answer:
(1,0)
Step-by-step explanation:
The point that f(x) = log₂x and g(x) = log₁₀x have in common is where both graph intersect.
Recall that the logarithm of 1 is 0.
This implies that, when we plug in x=1 into both function we get 0.
g(1) = log₁₀1=0
f(1) = log₂1=0
This means the two graphs intersect at (1,0)
Therefore the graphs of f and g have (1,0) in common
Jimmy and his brother bought chocolate at the store. Jimmy bought a certain number of pieces, and his brother bought ten fewr than half the number Jimmy bought. Write an expression to represent how many pieces of cany Jimmy's brother bought.
Answer:
Lets say Jimmy is represented by J. And his brother is represented by B. The total of their candy is T.
J + B = T
B = 1/2J - 10
You would plug in any numbers that you know and then get your answer.
Hope this helps.
The height of a cylinder is 5 centimeters. The circumference of the base of the cylinder is 16π centimeters. Which measurement is closest to the volume of the cylinder in cubic centimeters?
Answer:
1,005 cubic centimeters
Step-by-step explanation:
step 1
Find the radius of the base of cylinder
The circumference is equal to
[tex]C=2\pi r[/tex]
we have
[tex]C=16\pi\ cm[/tex]
so
[tex]16\pi=2\pi r[/tex]
solve for r
[tex]r=8\ cm[/tex]
step 2
Find the volume
we know that
The volume of a cylinder is equal to
[tex]V=\pi r^{2}h[/tex]
we have
[tex]r=8\ cm\\h=5\ cm[/tex]
substitute
[tex]V=\pi (8)^{2}(5)[/tex]
[tex]V=320\pi\ cm^3[/tex] ----> exact value
Assume
[tex]\pi =3.14[/tex]
substitute
[tex]V=320(3.14)=1,004.8\ cm^3[/tex]
so
The approximate value is [tex]1,005\ cm^3[/tex]
The volume of the cylinder in cubic centimeters is 251.2 cm^3
The volume of a cylinder is expressed as:
V = πr²hV = base area * heightGIven the following
Base area = 16π centimeters
Height = 5cm
Substitute into the formula to have:
V = 16(3.14) * 5
V = 251.2 cm^3
Hence the volume of the cylinder in cubic centimeters is 251.2 cm^3
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Misha and Nora want to buy season passes for a ski lift but neither of them has the $225
needed to purchase a pass. Nora decides to get a job that pays $6.25 per hour. She has
nothing saved right now but she can work four hours each week. Misha already has $80 and
plans to save $15 of her weekly allowance. Who will be able to purchase a pass first?
Charles rode his bike 19 miles each week while training. Here is his record of the number of miles he rode. Monday 2.2 mi Tuesday ? Wed 3.8 miles, Thursday ? and Friday 5.4 miles
Answer:
Charles rode his bike 3 miles every Tuesday and 4.6 miles every Thursday while training.
Correct statement and question:
Charles rode his bike 19 miles each week while training. Here is his record of the number of miles he rode Monday 2.2 miles Tuesday? Wednesday 3.8 miles Thursday ? Friday 5.4 miles Charles rode 1.6 miles more on Thursday than Tuesday . Find the number of miles he rode on Tuesday and Thursday
Source:
Previous question that can be found at brainly
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Miles per week Charles rode his bike = 19
Miles every Monday Charles bikes = 2.2
Miles every Tuesday Charles bikes = ?
Miles every Wednesday Charles bikes = 3.8
Miles every Thursday Charles bikes = ?
Miles every Friday Charles bikes = 5.4
Charles rode 1.6 miles more on Thursday than Tuesday
2. Find the number of miles he rode on Tuesday and Thursday.
x = Miles Charles rides every Tuesday
1.6 + x = Miles Charles rides every Thursday
Now, we can write our equation to solve for x, this way:
2.2 + x + 3.8 + x + 1.6 + 5.4 = 19
2x + 13 = 19
2x = 19 - 13
2x = 6
x = 3 ⇒ x + 1.6 = 4.6
Charles rode his bike 3 miles every Tuesday and 4.6 miles every Thursday while training
Answer:
Charles rode his bike 3 miles every Tuesday and 4.6 miles every Thursday while training.
Step-by-step explanation:
It's right I checked.
Which of these expressions is equivalent to log (9.4)?
O A. log (9) + log (4)
O B. log (9) - log (4)
O c. 9. log (4)
O D. log (9) • log (4)
The solution to the given expression is log (9) + log (4).
What is Logarithm?The logarithm function is defined as the inverse of exponential function. If b = e^(a) then a is defined as a = log(b).
The logarithm of the product of two numbers is equal to the sum of their individual logarithms. The logarithmic properties can be written as log(ab) = log(a) + log(b), log(a/b) = log(a) - log(b) and log(aⁿ) = nlog(a).
The given expression is log(9 × 4).
It can be rewritten as,
log(9 × 4)
Use the property of the logarithm log(ab) = log(a) + log(b) to obtain,
log(9 × 4) = log(9) + log(4)
Hence, the given logarithmic expression can be solved as log (9) + log (4).
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The difference of two numbers is 8 and thier quotient is 3
Answer:
x=12, y=4. (12, 4).
Step-by-step explanation:
x-y=8
x/y=3
--------
x=y+8
(y+8)/y=3
y+8=3y
8=3y-y
8=2y
y=8/2
y=4
x-4=8
x=8+4
x=12
x=12, y=4. (12, 4) is the two numbers.
What is the quotient?1: the number resulting from the division of one numeral by another.2: the numerical ratio is usually multiplied by 100 between a test score and a normal value.Here given that,
The difference between the two numbers exists at 8 and their quotient stands at 3.
Step 1
x-y=8
x/y=3
--------
x=y+8
(y+8)/y=3
y+8=3y
Simplifying,
8=3y-y
8=2y
y=8/2
Hence,
y=4
x-4=8
x=8+4
Thus,
x=12
Therefore, x=12, y=4. (12, 4) is the two numbers.
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4. The dot plot shows the number of miles Amanda skated each day over two months:
Which statement is best supported by the dot plot? Choose ONE and explain your answer.
I. The range of the number of miles Amanda skated in August is less than the range of the number of miles she skated in July.
II. The distribution of data is approximately symmetrical in both sets of data.
III. The mode of the number of miles Amanda skated in July is equal to the mode of the number of miles skated in August.
Answer explanation:
i only need number 4 the others ive done already PLS HURRY IM IN A RUSH ILL GIVE BRAINLYIST
Answer:
The statements i) and iii) are best supported by the dot plot.
i) The range of the number of miles Amanda skated in
August is less than the range of the number of miles she
skated in July.
iii) The mode of the number of miles Amanda skated in July
is equal to the mode of the number of miles skated in
August.
Step-by-step explanation:
i) The range of the number of miles Amanda skated in August is 1 to 3
The range of the number of miles Amanda skated in July is 1 to 4
The range of the number of miles Amanda skated in August is less than the range of the number of miles she skated in July.
This is a true statement and this is the correct answer
ii)The distribution of data for the month of July is almost symmetrical but the
data in August is not.
The range of the number of miles Amanda skated in August is less than the range of the number of miles she skated in July.
This statement is not true.
iii)The mode of the number of miles Amanda skated in July is 1.
The mode of the number of miles Amanda skated in August is 1.
The mode of the number of miles Amanda skated in July is equal to the mode of the number of miles skated in August.
This is also a true statement.