3 years ago

Five times the sum of two times a number and 3

Mathematics

1 answer:

BigorU [14]3 years ago

7 0

Answer:

5×(2x+3)

Step-by-step explanation:

hope this helps:)

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Please help! 27 points!<br> answer correctly!

VARVARA [1.3K]

For the first question the answer is C(n)=0.75n-0.25

for the second question the answer is y=2x

8 0

3 years ago

Draw a line through all points with a y-coordinate of -3.

Sedbober [7]

Answer:

See image below

Step-by-step explanation:

We want to draw a line through all points with a y-coordinate of -3; first let's observe some of these points: (-3,-3), (0,-3), (1,-3), (10,-3) are all part of this line.

We can see that what all these points have in common are that they have -3 in the y axis. Therefore, the graph of the line would be y = -3

This line is drawn in the graph below.

3 0

3 years ago

Which of the following is equal to the rational expression when x -2 or -1? x^2-4/(x+2)(x+1)

Orlov [11]

Answer:

(x+2)(x+1)

Step-by-step explanation:

Assuming im interpreting this correctly, it should be (x+2)(x+1), since if you plug in -2 and -1, it will give you 0, which is the answer.

8 0

3 years ago

Consider the function f(x) = x3 + 7. What is the inverse of f(x)?

Brrunno [24]

Answer:

f(x)=x^3+7

y=x^3+7

x=y^3+7

y^3=x-7

y=cube root (x-7)

f(x) inverse=cube root of x-7

Step-by-step explanation:

7 0

3 years ago

Negative 4 equals r/20 minus 5

levacccp [35]

Answer: r = - 20

Step-by-step explanation:

$-4 = \frac{r}{20} - 5$

$\frac{r}{20} = 4-5$

$\frac{r}{20}=-1$

$\frac{r}{20}*20 = -1 * 20$

$r = -20$

5 0

3 years ago