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2 years ago

In 6n + 8, n is best described as ___. A a coefficient B a variable C an expression D a term

Mathematics

2 answers:

nikklg [1K]2 years ago

7 0

In 6 n + 8,
n is best described as B ) a variable.
Thank you.

gayaneshka [121]2 years ago

6 0

Variable, because its a letter

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Which equation is the inverse of y = 9x2 - 4?

m_a_m_a [10]

Answer:

The inverse will be:

$y' = \frac{\sqrt{x+4}}{3}$

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

$f(x) = 9x^{2} - 4$

$y = 9x^{2} - 4$

$x = 9y' ^{2} - 4$

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

$x + 4= 9y'^{2} - 4+4$

$9y'^{2}$ = x + 4

Second divide by 9

$9y'^{2}$ /9 = (x + 4)/9

$y'^{2}$ = (x + 4)/9

Now you will have to clear y, with the square root.

$[tex]y'^{\frac{2}{2}} = \sqrt{x + 4} / \sqrt{9}$ [/tex] =

Simplifying terms

$y' = \frac{\sqrt{x+4}}{3}$

$f^{-1}(x) = \frac{\sqrt{x+4}}{3}$

You can check the answer by doing the evaluation of the following equation:

(f o $f^{-1}$ ) (x)

substitute the equation for y' or inverse function $f^{-1}$

f( $\frac{\sqrt{x+4} }{3}$ )

Now substitue the value into f(x)

You will have

$= 9(\frac{\sqrt{x+4} }{3}} )^{2} - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} ) - 4$

5 0

3 years ago

The sum of three consecutive even integers is 276. Find the integers. Please help and leave explanation if possible

Vesna [10]

Answer:

90,92,94

Step-by-step explanation:

1st number= x

2nd number= x+2

3rd number= x+4

x+x+2+x+4= 276

3x+6= 276

3x=270

x=90

x+2= 92

x+4=94

hope this helps- i did this in class

brainliest really needed!!

3 0

2 years ago

Read 2 more answers

There are 150 new employees at a tech company in Southern California. 30 new employees are randomly assigned to each orientation

Lunna [17]

Answer:

Step-by-step explanation:

There are 150 new employees in the sample space. There are 30 new employees in each event. P(C)= 1/5, is the probability that you choose new employees that has been assigned to the orientation group C.

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2 years ago

a certin shade of green paint is made from 5 parts yellow mixed with three parts blue. if 2 cans of yellow are used, how many ca

andrew-mc [135]

__Brainliest if helped!

5 Parts Yellow with 3 Parts blue
5Yellow with 3 Blue
1Yellow would be with 3/5 Blue
Hence ,
2 Yellow = (3/5)*2 Blue =6/5 Cans of blue or 1.2Cans of blue.

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3 years ago

An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end

Ksivusya [100]

It lands on floor 5.
10-9+19-3-12
1+19-3-12
20-3-12
17-12
5

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3 years ago