All categories

2 years ago

Which function has zeros at x = -2 and x = 5?

Mathematics

1 answer:

OlgaM077 [116]2 years ago

5 0

Answer:

f(x) = x² - 3x - 10

Step-by-step explanation:

Given zeros x = - 2 and x = 5, then the corresponding factors are

(x + 2) and (x - 5) , so

f(x) = (x + 2)(x - 5) ← expand using FOIL

= X² - 3X - 10

You might be interested in

The algebraic expression that represents 2 less than 3 of n is:

Marysya12 [62]

Answer:

Option A. 3(n-2)

Step-by-step explanation:

"2 less" - "subtract 2"

Then 3 of n - 3n

Hope helps -

7 0

2 years ago

Read 2 more answers

Graph the line.<br> y=4/3x

netineya [11]

Answer:

Start from (0,0) and do rise over run

Step-by-step explanation:

Rise 4

Run 3

For the III (3rd) quadrant use

Rise -4

Run -3

3 0

2 years ago

What two consecutive integers have a sum of 75?

marshall27 [118]

Answer:

37 and 38.

Step-by-step explanation:

Let the smaller integer be x.

Thus, the larger integer is (x+1) since it is consecutive.

$x+(x+1)=75$

$2x+1=75$

Subtract both sides by 1:

$2x+1-1=75-1$

$2x=74$

Divide both sides by 2:

$\frac{2x}{2}=\frac{74}{2}$

$x=37$

To find the other number, simply add 1 to 37 to get 38.

7 0

3 years ago

Read 2 more answers

What is the approximate area of the shaded portion of the diagram? (Use 3.14 as an estimate for pi.)

Nadusha1986 [10]

Answer:

218

Step-by-step explanation:

first find the area of the circle-

$A=\pi r^{2} \\A=\pi 10^{2} \\A=100\pi \\A=314$

to find the area of the triangle, we need the base and the height. The base we know is 16, since we don't know the height yet, use the Pythagorean theorem to find the height. One leg is 16 the hypotenuse is 20 (2* the radius).

$a^{2} +b^{2} =c^{2} \\a^{2} +16^{2} =20^{2} \\a^{2} +256=400\\a^{2} =144\\a=12$

Now I know the height is 12. Find the area of the triangle

$A=\frac{1}{2} bh\\A=\frac{1}{2} (16)(20)\\A=96$

subtract the area of the triangle from the area of the circle

314-96=218

6 0

2 years ago

Of the 24 students in Mrs. Jenkins class, only 6 passed the semester exam. What percent of students in Mrs Jenkins class did not

ivolga24 [154]

25% passed mrs.jenkins class.... 24 divved by 6 equals 4 now take 100 divided by 4.. simple answer is 25%

7 0

3 years ago

Which function has zeros at x = -2 and x = 5? ​

Which function has zeros at x = -2 and x = 5?