which of the following is the graph of (g - f)(x)
Answer:
It's the third one
Guaranteed!!
Hence, the graph second is correct.
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
Here,
[tex]f(x)=-x\\g(x)=2x[/tex]
So,
[tex]g(x)-f(x)=2x-(-x)\\\\(g-f)(x)=2x+x\\\\(g-f)(x)=3x[/tex]
Draw the graph:-
Hence, the graph second is correct.
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The farmer looks out in the barnyard and Cesar pigs and the chickens. He says to his daughter, “ I count 40 heads in 100 feet. How many pigs and how many chickens are out there?”
Answer:
There are 10 pigs and 30 chickens
Step-by-step explanation:
Let the number of pigs be x
let the number of chickens be y
Then there are 40 heads . So the total number of pigs and chickens is 40
x + y = 40-----------------------(1)
We know that pigs have 4 legs and chickens have 2 legs
4x + 2y = 100----------------------(2)
Solving (1) and (2)
multiply (1) by 2
2x + 2y = 80-------------------------(3)
subtract (3) from (2)
4x + 2y = 100
2x + 2y = 80
----------------------------
2x = 20
----------------------------
[tex]x = \frac{20}{2}[/tex]
x = 10
Now Substituting x in (1), we get
10 + y = 40
y = 40 - 10
y = 30
solve x+3y=-28
y=-5x using substitution
Answer:
Step-by-step explanation:
x + 3y = - 28
y = -5x
x + 3(-5x) = -28
x -15x = -28
-14x=-28
x=2
y = -5(2)
y=-10
a parking lot has total of 60 cars and trucks. the ratio of cars to trucks is 7:3 how many cars are in the parking lot. How many trucks are in the parking lot justify your anwsers
Find two nontrivial functions f(x) and g(x) so that f(g(x)) = (-6-3x)^6
Two nontrivial functions f(x) and g(x) that satisfy the equation f(g(x)) = (-6-3x)^6 are f(x) = x^6 and g(x) = -6 - 3x. These functions were found by assigning the inner function to g(x) and the outer function to f(x).
Explanation:Looking at the expression [tex]f(g(x)) = (-6-3x)^6[/tex], we can see that it is a composition of two functions. A possible way to choose the functions f(x) and g(x) is to let g(x) be the inner function and f(x) be the outer function.
Let's choose g(x) = -6 - 3x. This function linearly transforms the input x. Now, let's choose the function [tex]f(x) = x^6[/tex]. This function takes any input (including results from the g(x) function) and raises it to the power of 6.
So, when we apply g to x (g(x)) and then f to the result (f(g(x))), we get the original equation[tex]f(g(x)) = (-6-3x)^6[/tex]. Therefore, the two nontrivial functions f(x) and g(x) that satisfy the equation are f(x) = x^6 and g(x) = -6 - 3x.
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Find the volume of each figure
Mitchel owns a livestock trailer that can hold a maximum of 5,000 pounds. The average weight of each goat is 90 pounds, and the average weight of each calf is 360 pounds. Mitchel would like to know how many goats and calves he can transport in a single trip.
Mitchel can transport a 1:1 ratio of goats to calves in his livestock trailer, equating to 11 goats and 11 calves per trip, given their respective average weights of 90 and 360 pounds and the trailer's weight limit of 5000 pounds.
Explanation:Mitchel has a livestock trailer with a weight limit of 5,000 pounds. Given that each goat weights about 90 pounds and each calf about 360 pounds, we need to calculate how many of each animal the trailer can accommodate within its weight limit, while taking into account their average weights.
Let's look at one possible solution, using goats and calves in a 1:1 ratio. This would be 90 + 360 = 450 pounds per set of goat and calf. To fit within the trailer's weight limit, we then divide the total weight capacity by the weight of one set of animals: 5,000 / 450 = 11.11, which we round down to 11. This tells us that Mitchel can transport 11 goats and 11 calves in his trailer for each trip.
It's important to mention that this distribution can be adjusted according to need, as long as the total weight of the animals is kept below the trailer's weight limit.
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Graph the inequality x < 6
Please someone help now :(
Step-by-step explanation: To graph x < 6 on a number line, we start with an open dot at +6. The reason we use an open dot at +6 is that x is less than +6 but it is not equal to +6. Next we drawn an arrow going to the left to show that all numbers less than +6 are solutions to this inequality.
Image is attached below.
Henry’s disability insurance pays 70% of his salary for up to 26 weeks if his salary is $450 and he is disabled for 20 weeks how much disability will he get?
Answer:
$1575
Step-by-step explanation:
70 % of his salary is 0.7 X 450 = 315
He gets it for 20 weeks
presuming the salary is monthly.
You do 315 X 5 = 1575 20 /4 = 5 months
A rectangle has a perimeter of 25 meters. If the lengths of the sides of the rectangle are multiplied by 7 to make a new rectangle, what is the perimeter of the new rectangle?
Answer:
175 m
Step-by-step explanation:
We are given;
The perimeter of a rectangle as 25 mWe are required to determine the new perimeter if the sides of the rectangle are multiplied by 7.
We know that;
Perimeter of a rectangle = 2(L+W)
Therefore, initially;
2(L+W) = 25 m
Hence;
L + W = 12.5 m
if the sides are multiplied by 7, then;
New length = 7L
New Width = 7W
Thus;
New perimeter = 2(7L+7W)
= 14 (L + W)
but, L + W = 12.5
Thus;
New perimeter = 14 (12.5)
= 175 m
Therefore, the new perimeter will be 175 m
Answer:
The answer to the problem is 175
Step-by-step explanation:
Miss Jacobs purchase 10.2 ounces of candy for her class. Each student gets 0.85 ounces. Right and solve an equation to determine how many students are in Miss Jacobs class.
Answer:
There are 12 students in Miss Jacobs class.
Step-by-step explanation:
Divided 10.2 and 0.85
If you check your answer. 0.85 multiplied by 12 is 10.2
-37=x-9.9 , what’s the value of x ?
Answer:
x= 3.73737373737......
Step-by-step explanation:
To find x, divide -9.9 to both sides.
-37 = x-9.9
-9.9 -9.9
3.73737373737...= x
This is a repeating decimal.
A store offers a discount of 30 % on all refrence of books. If a dictionary cost $12 before the discount what is the dollar amount of the discount.
Answer:
3.6
Step-by-step explanation:
30%×12= 3.6
30%=0.3
7/10×1/2 please help me
Answer:
7/20
Step-by-step explanation:
7/10 * 1/2
By multiplying
7/20
0.35
Answer: 7/20 or .35
Step-by-step explanation: .7 times .5 is .35
Elsa can type 75 words per minute on a Keyboard
Elsa's rate of typing = 1.25 words per sec
Time is taken for typing each word = 0.8 a
What is unitary method used?It is a method of solving by finding the value of one unit and the calculating the value of given unit by multiplying with the single value.
Step by step calculationNumbers of words Elsa can type in 1 minute(the 60s) = 75
Numbers of words Elsa can type in one second = 75/60
∴ Rate of typing = 1.25 words per sec
Time is taken to type one word = 60/75
= 0.8 sec
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what is the twin prime conjecture?
Answer:
It is a prime number which is either 2 less or 2 more than another prime number
Step-by-step explanation:
Final answer:
The twin prime conjecture posits the existence of an infinite number of twin prime pairs, which are pairs of prime numbers that are two units apart.
Explanation:
The twin prime conjecture is an unsolved question in mathematics that relates to the distribution of prime numbers. It specifically addresses the existence of pairs of primes that are only two numbers apart, such as (11, 13), (17, 19), and (41, 43), which are known as twin primes. The conjecture proposes that there are an infinite number of these twin prime pairs, even though prime numbers themselves become less frequent as numbers increase. Despite many efforts, a definitive proof of this conjecture has not yet been found.
What is an equation of the line that passes through the point (3,6) and is parallel to the line 2x+3y=21
Answer: y= -2/3+8
Step-by-step explanation:
Between the hours of 10PM and 6AM, the
temperature decreases an average of ¾ of a degree
per hour. How many minutes will it take for the
temperature to decrease by 5°F?
Final answer:
It will take 400 minutes for the temperature to decrease by 5°F, calculated by dividing 5°F by the rate of ¾°F/h, resulting in 6.6667 hours, which is then converted into minutes (6.6667 hours × 60 minutes/hour = 400 minutes).
Explanation:
To calculate the time it will take for the temperature to decrease by 5°F, knowing that the temperature decreases at a rate of ¾ of a degree per hour, we can use the following steps:
Divide the total desired temperature decrease (5°F) by the rate of temperature decrease per hour (¾°F/h).
Calculate the total hours required for a 5°F decrease.
Since we want to find the time in minutes, we multiply the hours by 60 (as there are 60 minutes in an hour).
Step 1: 5°F divided by ¾°F/h = 5 ÷ 0.75 = 6.6667 hours
Step 2: 6.6667 hours are needed.
Step 3: 6.6667 hours × 60 minutes/hour = 400 minutes
Therefore, it will take 400 minutes for the temperature to decrease by 5°F.
A prism, bases of which are equilateral triangles, circumscribes a sphere of radius 6. What is the volume of the prism?
Answer:
1296√3 cubic units
Step-by-step explanation:
The volume of the prism will be the product of its base area and its height. Since it circumscribes a sphere with diameter 12, that is the height of the prism.
The central cross section of the sphere is a circle of radius 6, and that will be the size of the incircle of the base. That is, the base will have an altitude of 3 times that incircle radius, and an edge length of 2√3 times that incircle radius. Hence the area of the triangular base is ...
B = (1/2)(6×2√3)(6×3) = 108√3 . . . . . square units
The volume of the prism is then ...
V = Bh = (108√3)(12) = 1296√3 . . . cubic units
_____
Comment on the geometry
The centroid of an equilateral triangle is also the incenter and the circumcenter. The distance of that center from any edge of the triangle is 1/3 the height of the triangle. So, for an inradius of 6, the triangle height is 3×6 = 18. The side length of an equilateral triangle is 2/√3 times the altitude, so is 12√3 units for this triangle.
can you give a description of the relationship between the years since the tree was transplanted and its height in inches? if so what is it?
Answer:
The height of the tree is 18 inches plus 8 inches for each year since the tree was transplanted.Explanation:
Please, find attached an image with the table that accompanies this question.
1. Pattern
The table is:
Years: 2 4 5 8 9
Height (in.): 34 50 58 82 90
The most simple pattern is a linear pattern. A linear pattern has a constante rate of change.
The rate of change between two points is:
rate of change = change in the output / changee in the inputFind the rate of change for the data:
(50 - 34) in / (4 - 2) year = 16in / 2year = 8in/year(58 - 50) in / (5 - 4) year = 8in/1year = 8 in/year(82 - 58) in / (8 - 5) year = 24in / 3year = 8 in/year(90 - 82) in / (9 - 8) year = 8in / 1 year = 8 in/yearHence, the heigth and the years since the tree was transplantated show a linear relationship: every year the tree grew 8 inches.
2. Intial height:
You can find the initial height of the tree by using the rate of change of the height.
At year 2: height = 34 inchesAt year 1: height = 34 inches - 8 inches = 26 inchesAt year 0: height = 26 inches - 8 inches = 18 inches3. Relationship
You can describe the relationship in terms of the initial height and the numbers of years since the tree was transplantated.
Then, the height of the tree is 18 inches plus 8 inches for each year since the tree was transplanted.
You can even write an equation (function):
name H the height of the tree in inchesname y the number of years since the tree was transplantatedthe equation is: H = 18 + yChoose the correct simplification of (xy2z)3.
xy2z3
x3y6z3
x3y8z3
x4y5z4
Answer:
[tex]x^3y^6z^3[/tex]
Step-by-step explanation:
we have
[tex](xy^2z)^3[/tex]
Applying the property of exponents
[tex](x^m)^n=x^{m*n}[/tex]
[tex](xy^2z)^3=(x^3)(y^2)^3(z^3)=x^3y^{2*3}z^3=x^3y^6z^3[/tex]
The correct simplification of [tex]\((xy^2z)^3\) is \(x^3y^6z^3\).[/tex]
To simplify the expression [tex]\((xy^2z)^3\),[/tex] you need to raise each component within the parentheses to the power of 3.
[tex]\(x^3\)[/tex] represents \(x\) raised to the power of 3, [tex]\(y^{2 \times 3}\)[/tex] represents [tex]\(y^6\)[/tex] (since you multiply the exponents when raising a power to a power), and [tex]\(z^3\)[/tex]represents \(z\) raised to the power of 3.
So, [tex]\((xy^2z)^3\) simplifies to \(x^3y^6z^3\).[/tex]
The given options are:
[tex]a) \(x^3y^3z^3\)\\b) \(x^3y^6z^3\)\\c) \(x^3y^8z^3\)\\d) \(x^4y^5z^4\)[/tex]
Comparing the simplified expression [tex]\(x^3y^6z^3\)[/tex] with the options, the correct answer is option (b) [tex]\(x^3y^6z^3\).[/tex]
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Solve the equation 11x + 7 = 73?
Answer:
6
Step-by-step explanation:
11x + 7 = 73
- 7 - 7
11x = 66
divide 66 by 11 and you get 6
Answer:
x = 6
Step-by-step explanation:
Step 1: Subtract 7 from both sides
11x + 7 - 7 = 73 - 7
11x = 66
Step 2: Divide both sides by 11
11x = 66
11x / 11 = 66 / 11
x = 6
Answer: x = 6
1/2 (5n-6) = -6(-2n-5)
When the turnpike littered the toll, traffic increased from 1,500 cars per day to 2,700
What was the percentage of the increase in traffic volume?
Answer:
80%
Step-by-step explanation:
The percentage change between two numbers can be calculated as ...
percentage change = ((new value)/(old value) -1) × 100%
= (2700/1500 -1) × 100% = (1.80 -1) × 100% = 80%
Traffic volume increased 80%.
A car was purchased for $39150.00 and is expected to be worth $10800.00 in 9 years. Determine the rate at which the van depreciates in value.
Answer:
The annual rate of depreciation of the car is 8.05% or 72.41/9
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Price of the purchase of the car = $ 39,150
Price after 9 years = $ 10,800
2. Determine the rate at which the van depreciates in value.
Let's calculate what is the percentage of depreciation after 9 years, this way:
Percentage of depreciation after 9 years = [1 - (Price after 9 years/Price of the purchase of the car)] * 100
Replacing with the values we know:
Percentage of depreciation after 9 years = [1 - (10,800/39,150)] * 100
Percentage of depreciation after 9 years = [1 - 0.2759] * 100
Percentage of depreciation after 9 years = 72.41%
Annual rate of depreciation = 72.41/9 = 8.05%
Fill in the missing angle measures
Yo sup??
by angle sum property we know that the sum of all angles in a triangle is 180
let the unknown angle be x
then,
x+60+90=180
x=180-150
x=30
Hope this helps
The sum of the angles of a triangle is 180°.
The angle measures you know are 60° and 90° (because the box in the top right corner of the triangle means that it is a right angle, which equals 90°). So you can do this to find the missing angle:
60° + 90° + ? = 180° Add 60 and 90
150° + ? = 180° Subtract 150 on both sides
? = 30° The missing angle is 30°
A bag contains colored marbles. The ratio of red marbles to blue marbles is 1 : 4. The ratio of blue marbles to yellow marbles is 2 : 5. What is the ratio of red marbles to yellow marbles?
Final answer:
To find the ratio of red to yellow marbles, given the ratios of red to blue and blue to yellow, we equalize the blue part of both ratios and combine them, resulting in a red to yellow ratio of 2:5.
Explanation:
The question concerns finding the ratio of red marbles to yellow marbles given the ratios of red to blue marbles and blue to yellow marbles. To solve this, we use the given ratios: the ratio of red marbles to blue marbles is 1 : 4, and the ratio of blue marbles to yellow marbles is 2 : 5. Firstly, we make the number of blue marbles consistent in both ratios by finding a common value. Multiplying the first ratio by 2 gives us red to blue as 2 : 8, and keeping the second ratio as is (blue to yellow as 2 : 5), we can now combine these to find the ratio of red marbles to yellow marbles. The red to yellow ratio, through the intermediary blue, becomes 2 : 5.
Graph f(x)=3sin(12x)−5 . Use 3.14 for π .
Answer:
see attached
Step-by-step explanation:
The given function is a vertical expansion of the sine function by a factor of 3 and a translation downward by 5 units.
It will oscillate between -8 and -2, with a midline at y = -5. The multiplier 12 indicates the period of the function will be 2π/12 = π/6 ≈ 0.5233... for the given value of π.
A graphing calculator is a useful tool for creating the graph.
Answer:
Step-by-step explanation:
took the test
An architect plans to buy 5 stone spheres and 3 stone cylinders. For the same amount, she can buy 2 stone spheres and 6 stone cylinders. If one stone cylinder costs $36.81, how much does each stone sphere cost?
The cost of each stone sphere is $ 36.81
Solution:
Given that,
An architect plans to buy 5 stone spheres and 3 stone cylinders
For the same amount, she can buy 2 stone spheres and 6 stone cylinders
Let "x" be that same amount
Let "a" be the cost of each stone sphere
Cost of each stone cylinder = $ 36.81
Therefore,
x = 5 stone spheres and 3 stone cylinders
x = 5a + 3(36.81)
Similarly,
x = 2 stone spheres and 6 stone cylinders
x = 2a + 6(36.81)
Equate both,
[tex]5a + 3(36.81) = 2a + 6(36.81)\\\\5a + 110.43 = 2a + 220.86\\\\5a - 2a = 220.86 - 110.43\\\\3a = 110.43\\\\a = 36.81[/tex]
Thus cost of each stone sphere is $ 36.81
By setting up and solving equations based on the given scenarios, we find that the cost of each stone sphere is also $36.81, the same as one stone cylinder.
Explanation:Let's denote the cost of one stone sphere as S and the cost of one stone cylinder as C. We know one stone cylinder costs $36.81. We are given two scenarios involving the purchase of stone spheres and cylinders with equal total cost. In the first scenario, 5 stone spheres and 3 stone cylinders are bought, and in the second, 2 stone spheres and 6 stone cylinders are purchased.
Formulating these scenarios into equations gives us:
5S + 3C = 2S + 6CConsidering C = $36.81Substituting the value of C into the equation simplifies it to:
5S + 3(36.81) = 2S + 6(36.81)
Simplifying further:
5S + 110.43 = 2S + 220.86
Subtracting 2S and 110.43 from both sides results in:
3S = 110.43
Dividing both sides by 3 gives:
S = $36.81
Therefore, each stone sphere also costs $36.81.
the base of parellogram is twice its height . if the area is 648msq find its base and height
Answer:
h=18m, b=2m
Step-by-step explanation:
Let the base be b and height be h
Condition 1:
b=2h ----(1)
Condition 2:
Area=b*h
b*h=648 -----(2)
Putting (1) into (2)
2h*h=648
2h^2=648
Dividing both sides by 2
h^2=324
Taking sq root on both sides
h=18 m
Now
Putting value of h in eq (1)
b=2(18)
b=36 m