All categories

2 years ago

PLEASE HURRY I NEED MY WORK TO BE SHOWN!!!!! 15 POINTS!!! CORRECT ANSWERS ONLY PLEASE!!!

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

4 0

Answer:

f(-4) = 72, f(x + 5) = 3x² + 23x + 36

Step-by-step explanation:

f(-4) = 3(-4)² - 7(-4) - 4

= 48 - (-28) - 4

f(-4) = 72

f(x + 5) = 3(x + 5)² - 7(x + 5) - 4

= 3(x + 5)(x + 5) - 7(x + 5) - 4

= 3(x² + 10x + 25) - 7(x + 5) - 4

= 3x² + 30x + 75 - 7x - 35 - 4

f(x + 5) = 3x² + 23x + 36

You might be interested in

Write this ratio as a fraction in lowest terms. $30 to $80 is

Wewaii [24]

Answer:

⅜

Step-by-step explanation:

30/80

= 3/8

7 0

2 years ago

Read 2 more answers

* You are somebody worthy of good health, fitness, and wellness.

Dennis_Churaev [7]

Working out on the regular eating healthy foods getting enough sleep and water :)

6 0

2 years ago

Read 2 more answers

The ratio of the length of a rectangle to its width is 8 to 5. If the longer side of the rectangle is 20ft, what is the length o

choli [55]

Answer: The answer is 12.5 ft.

Step-by-step explanation: Given that there is a rectangle with ratio of its length to breadth 8 : 5. Also, the longer side of the rectangle is 20 feet. We are to find the length of the shorter side.

Let, '8x' and '5x' be the length and breadth of the rectangle respectively. Since length is the longer side, so we have

$8x=20\\\\\Rightarrow x=\dfrac{20}{8}\\\\\\\Rightarrow x=2.5.$

Therefore, width, length of the shorter side will be

$W=5x=5\times 2.5=12.5~\textup{ft.}$

Thus, the length of the shorter side is 12.5 ft.

6 0

3 years ago

Read 2 more answers

47. The legs of a triangle measure 7 mm and 24 mm. What length hypotenuse makes the triangle a right triangle?

k0ka [10]

Answer:

Step-by-step explanation:

according to pythagorean

$7^{2} + 24^{2} =x^{2}$ (x>0)

=> $x^{2} =625$

=> $x=\sqrt{625}$ = 25

6 0

2 years ago

12. Raul invests $6500 at a simple interest rate of 4%. How much will he earn

kenny6666 [7]

Answer:

$1,560

Step-by-step explanation:

Interest = Principal x Interest Rate x Time (in years)

I = 6500(.04)(6)

I = 1560

7 0

1 year ago