Ask question

Ask question

All categories

4 years ago

14

Can anyone help me with this?????

2 answers:

Norma-Jean [14]4 years ago

8 0

All you have to do is plug in 3 for x. 9+3 is 12, and 12^2 is 144. Your answer is f(3) = 144.

Shkiper50 [21]4 years ago

8 0

²Ok, so when they say to find f(3) this just means that they want you to replace the x value with the number 3 and solve it that way.

f(x) = (9+x)²
f(3) = (9+3)²
f(3) = (12)²
f(3) = 144

Hope that helps :)

You might be interested in

A page should have perimeter of 42 inches. The printing area within the page

Tamiku [17]

Overall dimensions of the page in order to maximize the printing area is page should be 11 inches wide and 10 inches long .

<u>Step-by-step explanation:</u>

We have , A page should have perimeter of 42 inches. The printing area within the page would be determined by top and bottom margins of 1 inch from each side, and the left and right margins of 1.5 inches from each side. let's assume width of the page be x inches and its length be y inches So,

Perimeter = 42 inches

⇒ $2(x+y) = 42\\x+y = 21\\y = 21-x$

width of printed area = x-3 & length of printed area = y-2:

area = $length(width)$

$area = (x-3)(y-2)\\area = (x-3)(21-x-2)\\area = (x-3)(19-x)\\area = -x^{2} + 22x -57$

Let's find $\frac{d(area)}{dx}$ :

$\frac{d(area)}{dx}$ = $\frac{d(-x^{2}+22x-57)}{dx} = -2x +22$ , for area to be maximum $\frac{d(area)}{dx}$ = 0

⇒ $-2x+22 = 0\\2x =22\\x=11 inches$

And ,

$y = 21-x\\y = 21-11\\y = 10 inches$

∴ Overall dimensions of the page in order to maximize the printing area is page should be 11 inches wide and 10 inches long .

7 0

3 years ago

You start at (2, 10). You move down 4 units. Where do you end?

IgorLugansk [536]

Answer:

(2, 6)

Step-by-step explanation:

coordinates work by (x, y)

so if up or down = y

then 10 - 4 = 6

therefore the answer is (2, 6)

6 0

3 years ago

Which statements describe gene therapy? Select three options.

lord [1]

Answer:

Gene therapy is a form of genetic engineering.

Gene therapy is an attempt to cure diseases.

Gene therapy involves replacing mutated gene

c d e

3 0

3 years ago

Read 2 more answers

Answer this fo me gg kid

sineoko [7]

Answer:

264 cubic centimeters

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In ΔOPQ, PQ = 17, QO = 9, and OP = 15. Which statement about the angles of ΔOPQ must be true?

77julia77 [94]

Answer:

All angles are different.

Internal angles can be acute, obtuse, or right angle.

The smallest side is opposite to the smallest angle and the longer side is opposite to the larger angle.

Step-by-step explanation:

Given - In ΔOPQ, PQ = 17, QO = 9, and OP = 15.

To find - Which statement about the angles of ΔOPQ must be true?

Proof -

As given,

In ΔOPQ, PQ = 17, QO = 9, and OP = 15.

As all the sides of the given triangle is different, So the given triangle is a Scalene triangle.

Now,

We know that , In Scalene triangle -

All sides are different.

All angles are different.

Internal angles can be acute, obtuse, or right angle.

The smallest side is opposite to the smallest angle and the longer side is opposite to the larger angle.

6 0

3 years ago