Choose the student who correctly used substitution to determine if 19 was a solution to the equation. Mara's work Juan's work Acacia's work Hector's work​

Answer:

[tex]18e^2f^3-12e^2f = 6e^2f(3f^2-2)[/tex]

Step-by-step explanation:

Given

[tex]18e^2f^3-12e^2f[/tex]

Required

Factorize:

[tex]18e^2f^3-12e^2f[/tex]

Express 18 as 6 * 3 and 12 as 6 * 2

[tex]18e^2f^3-12e^2f = 6*3e^2f^3-6*2e^2f[/tex]

Factor out 6

[tex]18e^2f^3-12e^2f = 6(3e^2f^3-2e^2f)[/tex]

Factor out [tex]e^2[/tex]

[tex]18e^2f^3-12e^2f = 6e^2(3f^3-2f)[/tex]

Factor out f

[tex]18e^2f^3-12e^2f = 6e^2f(3f^2-2)[/tex]

Answer:

184 cm²

Step-by-step explanation:

Answer: 6

Step-by-step explanation:

-10201902090944

In table 4, for increasing x value, the y values are decreasing. Therefore, option 4 is the correct answer.

Scatter plots are used to observe and plot relationships between two numeric variables graphically with the help of dots. The dots in a scatter plot shows the values of individual data points.

A scatter plot with an increasing value of one variable and a decreasing value for another variable can be said to have a negative correlation.

In the given table 4, we can see for increasing x value, the y values are decreasing.

Therefore, option 4 is the correct answer.

To learn more about the scatter plot visit:

https://brainly.com/question/29231735.

#SPJ7

Answer:

7.7466

Step-by-step explanation:

Hope it helps:)

Answer:

First we need to isolate x. To do this, we have to subtract 9

x = 12!

Step-by-step explanation:

Answer:

x=12

Step-by-step explanation:

x+9-9=21-9

x=12

hope this helps !!

Answer:

y = 3x

Step-by-step explanation:

A proportional function has the equation

y = kx, where k is the constant of proportionality and also the slope of the line.

Answer: y = 3x

The equation that represents the line whose slope of proportional relationship is 3 is; y = 3x.

The slope of the proportional relationship as given is 3.

However, the equation of the line which represents a proportional relationship usually takes the form; y = Mx.

Since, slope, m = 3.

The equation of the line is; y = 3x.

Read more on equation of a line:

https://brainly.com/question/15618632

Answer:

2 hours

Step-by-step explanation:

To solve this question, we can convert the fraction into decimal form momentarily, so that 5 1/2 is now 5.5, and 3 1/2 is now 3.5. We know that Sara has already driven 3.5 hours, and it takes 5.5 to get to her aunts house. To dins how much longer Sara has left to drive, simply subtract the total amount of hours by the hours already completed:

5.5 - 3.5 = 2.0

Meaning, Sara has 2 hours left to drive

Hope this helps :)

Answer:

x=-16/3

Step-by-step explanation:

9x-8(-8)=16

9x+64=16

9x=-48

x=-48/9

x=-16/3

Answer:

8.8

Step-by-step explanation:

kids cheating in tests.....

8.7749643787

8.8(1dp)

Answer:

4x-12

Step-by-step explanation:

4 x x is 4x and 4x-3 is -12

sorry I do not know.

Step-by-step explanation:

anymore question?

Answer:

No

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Answer:

83%

Step-by-step explanation:

I think this is the correct answer

Answer:

Linear function

Step-by-step explanation:

Given

[tex]f(x) = -\frac{1}{4}x + 5[/tex]

Required

Linear or Exponential

A linear equation has the form: [tex]f(x) = mx + c[/tex];

An exponential has the form: [tex]f(x) = ab^x[/tex]

By comparing both functions to: [tex]f(x) = -\frac{1}{4}x + 5[/tex]

The linear function is similar to [tex]f(x) = -\frac{1}{4}x + 5[/tex]

Hence, the given function is a linear function.

Answer:

Step-by-step explanation:

show the rest

Answer:

False

Step-by-step explanation:just took the test

what kind of math is this X_X

Answer:

39,055

Step-by-step explanation:

so you say 6 over 100 multiplied by $36,500 over 1. then 100 into 36,500 then you get 365. then you say 6 multiplied by 365 and you get 2,555. then you say 2,555 plus 36,500 then you get 39,055

Answer:

Area = 396 units²

Step-by-step explanation:

Let's assume:

Length = 2c - 5

Width = 5c + 9

Perimeter = 2(L + W) = 106 units

Thus:

2[(2c - 5) + (5c + 9)] = 106

Find the value of c

2[2c - 5 + 5c + 9] = 106

2[7c + 4] = 106

14c + 8 = 106

14c = 106 - 8

14c = 98

Divide both sides by 14

c = 98/14

c = 7

✔️Area of the rectangle = Length × Width

Area = (2c - 5)(5c + 9)

Plug in the value of c

Area = (2×7 - 5)(5×7 + 9)

Area = (14 - 5)(35 + 9)

Area = (9)(44)

Area = 396 units²

Answer:

i depends of degre of triangle it can be three 14-11

it can also be 16

Answer:

75% of the guys is valid and half the boys in the league attended all the games is also valid.  80% of the games is not valid and so is 70% of the games.

Step-by-step explanation:

I took the test :)

Answer:

The Screenshot has the answer to the problem.

Step-by-step explanation:

Answer:

254

Step-by-step explanation:

Add everytin step by step.

Answer:

∠DGB = 101°

Step-by-step explanation:

Given:

∠CGB = 79°

Find:

∠DGB

Computation:

We know that CD is a straight line

So,

∠CGB + ∠DGB = 180

79 + ∠DGB = 180

∠DGB = 101°

Answer:

(2/3)^3

8/27 in^3

Step-by-step explanation:

Answer:

3

0.29629629629in³

Step-by-step explanation:

To find the volume of a cube you multiply the length by the width by the height. Since all the sides of the cube are the same, its the same measure multiplied three times, ie. to the power of three.

(2/3)³=0.29629629629in³

Answer:

6,000 & 19,200

Answer:

x = 6

Step-by-step explanation:

A vertical asymptote is a vertical line going through the x-axis at an x-value that x is not actually allowed to have.

In this case, we have a 'rational' function, meaning there is a 'ratio' or fraction involving the variable x.

With these 'rational' or fractional expressions, we always have to watch out to make sure we never have a denominator equal to zero, because division by zero is not defined. It is meaningless.

The denominator x-6 will equal zero if x is 6, so x cannot actually ever be 6.

That is where the vertical asymptoe goes: a vertical line with the equation x = 6.

The value of x is 6.

The following information should be considered:

Learn more: brainly.com/question/17429689

Answer:

C

Step-by-step explanation:

A: As the years go by the tree grows and deflat (false)

B: A number of the year can’t decrease (false)

C: As I said, as the years go by the tree grows (true)

D: Same reason as B (false)

Answer:

54.0054

Step-by-step explanation:

hope it helps you

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Answer:

The line is horizontal and the slope is 0.

Step-by-step explanation:

Any line that is horizontal has a slope of 0.

Answer:

The temperature of the water when the first race started was 78.1 degrees

Step-by-step explanation:

Addition

The temperature of the water of a pool was 72.5 degrees when the swimmers first arrived.

By the time when the first race started, the temperature had increased by 5.6 degrees.

To find the temperature at that very moment we have to add 72.5 degrees + 5.6 degrees = 78.1 degrees

The temperature of the water when the first race started was 78.1 degrees