If f(x)=8-10x and g(x)=5x+4, what is he value of (fg)(-2)

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

Answer:

168

Step-by-step explanation:

We would like to multiply these two expressions together and then substitute -2 in for x to solve.

f(x) * g(x) = (8 - 10x) * (5x + 4)

We will use FOIL (first, outer, inner last):

(8 - 10x) * (5x + 4) = 8 * 5x + 8 * 4 + (-10x) * 5x + (-10x) * 4

Combining terms, we get:

f(x) * g(x) = 32 - 50x²

Plug -2 in for x:

32 - 50 * (-2)² = 32 - 50 * 4 = 32 - 200 = -168

The answer is thus 168.

~ an aesthetics lover

You might be interested in

An office that dispenses automotive license plates has divided its customers into categories to level the office workload. Custo

grigory [225]

Answer:

UNIF(2.66,3.33) minutes for all customer types.

Step-by-step explanation:

In the problem above, it was stated that the office arranged its customers into different sections to ensure optimum performance and minimize workload. Furthermore, there was a service time of UNIF(8,10) minutes for everyone. Since there are only three different types of customers, the service time can be estimated as UNIF(8/3,10/3) minutes = UNIF(2.66,3.33) minutes.

6 0

2 years ago

I try to solve it but I didn't get any of the choices Thank you for helping me

Natasha2012 [34]

The answer is 7. You can look at it like this. The two triangles are similar and the larger one's sides are twice the size of the smaller one's. So then we know GF is twice the size of JK.
2(2y+5)=5y+3
4y+10=5y+3
y=7

8 0

2 years ago

Can someone answer this no bots please I will give you brainliest… please

Jobisdone [24]

Answer: Alice

Step-by-step explanation: Alice won because she started furthest From the starting line.

5 0

2 years ago

Find the quotient of 6y²-5y-56 and 2y-7. help.

pashok25 [27]

Answer:

i have made it in above picture