2 years ago

If f(x) = 4х2 +1 and g(x) = х2 – 5, find (f-g)(x).

Mathematics

1 answer:

liq [111]2 years ago

7 0

Answer:

The answer is B

Step-by-step explanation:

f(x) = 4x² + 1

g(x) = x² - 5

(f-g)(x) = 4x² + 1 - (x²-5)

= 4x² + 1 - x² + 5

= 3x² + 6

You might be interested in

The point A(-2, 3) is translated using T: (x,y) = (x + 4, y + 2).

Charra [1.4K]

Answer: Choice D) $2\sqrt{5}$

===========================================================

Work Shown:

Point A starts at (-2,3) and moves to (2,5) after applying the translation rule of "shift 4 to the right, 2 up".

Use the distance formula to find the distance from (-2,3) to (2,5)

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(-2-2)^2 + (3-5)^2}\\\\d = \sqrt{(-4)^2 + (-2)^2}\\\\d = \sqrt{16 + 4}\\\\d = \sqrt{20}\\\\d = \sqrt{4*5}\\\\d = \sqrt{4}*\sqrt{5}\\\\d = 2\sqrt{5}\\\\d \approx 4.472136\\\\$

6 0

3 years ago

A plane descends 27,500 feet to the ground. If the plane descends at a rate of 275 feet per minute, how long will it take the pl

slava [35]

Answer:

Just take the two zeros to 100

Step-by-step explanation:

5 0

2 years ago

Express the repeating decimal 2.1¯ as a fraction.<br> 21/10<br> 20/9<br> 19/9<br> 19/8

Oliga [24]

Answer:

21/10

Step-by-step explanation:

Trust Me

6 0

2 years ago

Read 2 more answers

Need help asap 8 points

lubasha [3.4K]

Question 13 is 14 x is 14

7 0

2 years ago

Read 2 more answers

According to the diagram below, In which hemisphere is it NIGHT and SUMMER?

AfilCa [17]

2 and 3 because if I’m right the rotation should end up that way not 100% sure hope it helps tho

7 0

2 years ago

Read 2 more answers