1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Damm [24]
3 years ago
12

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.

<em>~ an aesthetics lover</em>

You might be interested in
At what price must I sell a motor car costing £2680 to make a gain of 5% on the cost? Please help
Papessa [141]
So 2680 divided by 100 is 26.80 which is 1%, times 26.80 by 5 to get 5% = £134, £2680+134= £2814
3 0
3 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST !!
AveGali [126]

Answer:

Angles and XWY and STR

Step-by-step explanation:

These two angels are alternate exterior angels because:

- They are on different sides of the transversal (the line intersecting the two parallel lines)

- They have the same angle measure

- They are exterior, meaning they are on the outside, not inside (interior)

Hope this helps!!! :)

8 0
2 years ago
Given the exponential function ƒ(x) = 45(1⁄3)x, find ƒ(0) and ƒ(1).
In-s [12.5K]
Answer for f(0) = 15
Answer for f(1) = 15
4 0
3 years ago
Read 2 more answers
Kirsty bought a new TV. The total cost of the TV was £360, in the sale it has 12.5% discount. What is the new price of the TV?
jasenka [17]
12.5% of 360 is 45
360-45 is 315
Answer is £315
3 0
3 years ago
What is the degree measure of an arc 4 pi feet long in a circle radius of a 10 foot radius
otez555 [7]
Circumference = 2 pi r = 20 pi
  corresponding to 360 degrees

so an arc of 4pi feet will have a degree measure of 5pi / 20pi  * 360 =  1/4 * 360 =  90 degrees
5 0
3 years ago
Other questions:
  • What expression is equivalent to (3n-4)-2(n-2)
    6·1 answer
  • Please help with this as soon as possible​
    9·2 answers
  • Simplify the expression so there is only one positive power for each base. (5^-2 x 4^-4)^-2
    8·1 answer
  • Rewrite the fraction as a decimal 13/11 = Round to the nearest hundredth.​
    5·1 answer
  • 170 guests yesterday called for room service 255 guests did not call for room service what percentage call for room service
    8·1 answer
  • Need help asap!!!
    13·1 answer
  • Complete the table of values for function A
    14·1 answer
  • What goes in the blanks? (a2 +___+1)−(___+5a+___)=4a2 −2a+7
    9·2 answers
  • Sako makes 11 cakes to share equally among 5 people. How many cakes does each person get?
    11·1 answer
  • Triangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that lines BC and EF have the opposite an
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!