3 years ago

Find (f•g) (-1) Let f(x) =-2x-1 and g(x) =x^2 -1

Mathematics

1 answer:

umka21 [38]3 years ago

4 0

Answer:-1

Step-by-step explanation:

let g(x) foil into f(x) => (-2(x^2-1)-1)

= -2x^2+1

then put (-1) into the formula => -2(1)+1

= -1

that is the answer^^

You might be interested in

Twelve athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be given to the second-place

kykrilka [37]

Answer:

1320

Step-by-step explanation:

We are given that

Total number of athelets are running in race=12

Total number of medals =3

We have to find the total possible number of ways can the 3 medals be distributed.

Total number of ways for choosen gold medal=12

Number of ways for choosen silver medal=11

Number of ways for choosen Bronze medal=10

Total number of possible ways= $12\times 11\times 10=1320$

Hence, total number of possible ways in which 3 medals be distributed=1320

8 0

4 years ago

Which products reslut in a difference of squares? check all that apply.

algol13

Answer:

A,C,D,E

Step-by-step explanation:

If you plug in any random number and you graph it for each one of the problems the answer will change

8 0

3 years ago

Read 2 more answers

Solve. 2x - 1 = 7 0) A) X = 2 B) X = 3 C) X=4 D) X = 5

Sophie [7]

Answer:

x = 4

Step-by-step explanation:

Add 1 to 7 to get 8. Divide 8 by 2 to get 4. The answer is then x = 4

8 0

3 years ago

What is the circumference of a circle with a diameter of 3 feet? Use 3.14 for π.

Bad White [126]

Answer:

$1.5 \times 3.14$

3 0

3 years ago

I need to show work also

Margaret [11]

376.8 cubic centimeter of wax are needed for the candle.

Solution:

Radius of the cylinder = 2 cm

Height of the cylinder = 30 cm

The value of π = 3.14

To find how much wax are needed to make the candle:

Volume of the cylinder = $\pi r^2 h$

= 3.14 × 2² × 30

Volume of the cylinder = 376.8 cubic centimeter

Hence 376.8 cubic centimeter of wax are needed for the candle.

8 0

3 years ago