All categories

3 years ago

20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

DerKrebs [107]3 years ago

4 0

I cant understand could you make it clearer

You might be interested in

Find the domain and range of the function graphed below. Write your answers in interval notation.

attashe74 [19]

Answer:

Domain: $[-3, 1)$
Range: $[-5, 4]$

Step-by-step explanation:

The domain is the set of x-values and the range is the set of y-values.

7 0

2 years ago

If f(x) = 2/3x + 9, find f^-1(x)

larisa86 [58]

If $f^{-1}(x)$ is the inverse of

$f(x) = \dfrac23x+9$

then

$f\left(f^{-1}(x)\right) = \dfrac23f^{-1}(x) + 9 = x$

Solve for $f^{-1}(x)$ :

$\dfrac23f^{-1}(x)+9 = x \\\\ \dfrac23f^{-1}(x) = x-9 \\\\ f^{-1}(x) = \dfrac32(x-9) = \dfrac32x-\dfrac{27}2$

which makes D the correct answer.

6 0

3 years ago

I need help i will give the brainliest!

eimsori [14]

Answer:

1)-6a+-48

2)4+36x

3)-30n+18

4)18m+20

5)32-24n

6)-8b-32

7)5-35n

8)-6x+-24

9)15m-30

10)24p+-28

11)5b-5

12)5x+45

Step-by-step explanation:

Distributive property, Hope this helps!

5 0

3 years ago

What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−23x+5

elena-s [515]

Answer:

$y-1=\frac{1}{23} (x-8)$

Step-by-step explanation:

We can write the equation of a line in 3 different forms including slope intercept, point-slope, and standard depending on the information we have. We have a point (8,1) and a slope from the equation y=-23x+5. We will chose point-slope since we have a point and slope.

Point slope: $y-y_1=m(x-x_1)$

$m\neq -23$ in our new equation because it us perpendicular to it. This means we will need to change it into its negative reciprocal which is $m=\frac{1}{23}$ .

We will substitute $m=\frac{1}{23}$ and $x_1=8\\y_1=1$ .

$y-1=\frac{1}{23} (x-8)$ .

This is the equation of the line perpendicular to y=-23x+5 that crosses through (8,1).

5 0

3 years ago

Among all rectangles that have a perimeter of 188, find the dimensions of the one whose area is largest.

ANEK [815]

Always add them all around and then divide the two and you should get the correct answer

4 0

3 years ago