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NNADVOKAT [17]
3 years ago
7

Find the x-intercepts of x2+8x+15=y.

Mathematics
1 answer:
Andrews [41]3 years ago
4 0

Answer option D

Step-by-step explanation:

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Hello, could you please explain this to me?
Viefleur [7K]

Find the value of r(q(4)), so first you need to find the value of q(4).

q(4), this means that x = 4, so substitute/plug it into the equation to find the value of q(x) when x = 4:

q(x) = -2x - 1      Plug in 4 into "x" since x = 4

q(4) = -2(4) - 1

q(4) = -8 - 1

q(4) = -9        

Now that you know the value of q(4), you can find the value of r(x) when x = q(4)

r(x) = 2x² + 1

r(q(4)) = 2(q(4))² + 1      Plug in -9 into "q(4)" since q(4) = -9

r(q(4)) = 2(-9)² + 1

r(q(4)) = 2(81) + 1

r(q(4)) = 163           163 is the value of r(q(4))

5 0
3 years ago
The Buffalo Bills football team wanted to buy new footballs. what did the team have to pay per football? Be sure to explain all
iogann1982 [59]

Answer: I don't see the amount per football

Step-by-step explanation:

6 0
3 years ago
A new parking lot is being built for a medical office. the expression representing the number of parking spots in the new lot is
Allushta [10]
Did you ever get the awnzer

6 0
3 years ago
Read 2 more answers
Combine Like Terms :2y+7z-2z+4y+8+y+2
Viktor [21]

Answer:

7y + 5z + 10

Step-by-step explanation:

2y + 7z - 2z + 4y + 8 + y + 2

Like terms are terms that have the same variable part.

2y, 4y, y are like terms (remember that y is the same as 1y when you add)

7z, -2z are like terms

8, 2 are like terms

2y + 7z - 2z + 4y + 8 + y + 2 =

= 2y + 4y + y + 7z - 2z + 8 + 2

= 7y + 5z + 10

4 0
2 years ago
The product of two even numbers is always divisible by 4 true or false
never [62]

Answer: TRUE

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

an even number is divisible by 2.  

Consider even number j which equals 2a and even number k which equals 2b.  Then the product of these two numbers (j and k) = 2a*2b = 4ab.

4ab is divisible by 4.

BONUS:

The product of three even numbers is divisible by 2³

The product of four even numbers is divisible by 2⁴

The product of five even numbers is divisible by 2⁵

do you see the pattern?

7 0
3 years ago
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