3 years ago

Consider the function f(x)=x^2+2x-15.what are the x-intercepts of the function?

Mathematics

1 answer:

denis23 [38]3 years ago

8 0

Answer:

x=3 and x= -5

Step-by-step explanation:

x^2+2x-15

Find the numbers that can be multiplied to equal the last term and added to equal the second term: x^2+5x-3x-15

Factor: x(x+5)-3(x+5)

Then you get: (x-3)(x+5)=0

Answer: x=3 and x=-5

You might be interested in

Which expression has the same value as -18\(-9)? -18\2 -12\(-3) -10\5 -8\(-4)

Rufina [12.5K]

Answer:

Step-by-step explanation:

Well -8/-4 is 2 so that is the same

4 0

3 years ago

Ms. McNeil buys 2.4 gallons of gasoline. the total cost is $7.56. Write and solve an equation to find the price p in dollars of

tino4ka555 [31]

If you know the whole price for 2.4 gallons, divide the whole price by 2.4 to get the cost for one, because when you multiply the cost for 1 by 2.4, you get the total.

7.56/2.4 = 3.15,

p= 3.15

6 0

4 years ago

How many soultions does the equation 2(p+5) = 4 - 10p have? Explain how you found your answer.

ra1l [238]

Answer:

1, p = -0.5

Step-by-step explanation:

2(p+5) = 4 - 10p

2p+10 = 4 - 10p

2p + 10p = 4 - 10

12p = -6

p = -6/12

p = -0.5

2(-0.5+5) = 4 - 10(-0.5)

-1 + 10 = 4 + 5

9 = 9

3 0

3 years ago

Which of the following statements are true? f(x) g(x)

Arturiano [62]

Step-by-step explanation:

because the figure is based on the graphic law

7 0

2 years ago

Find the exact length of the third side.

maw [93]

Answer:

6.08

Step-by-step explanation:

Using pythagorean theorum:

$c = \sqrt{ {6}^{2} + {1}^{2} }$

8 0

3 years ago

Read 2 more answers