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Tamiku [17]
4 years ago
8

If (9x − 4)(9x + 4) = ax^2 − b, what is the value of a?

Mathematics
2 answers:
ASHA 777 [7]4 years ago
6 0
A=81
Hope this helps :)
deff fn [24]4 years ago
3 0
Hope this helps you.

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Sam is five years old his older brother tom is three times as old is sam when salmon is 20 how old will tom be
kramer
Sam's bother is 23 years old
3 0
3 years ago
Quick brain for first and 5 stars What steps should be taken to calculate the volume of the right triangular prism? Select three
Ierofanga [76]

Answer:

- Use the formula A = one-half b h to find the area of the base.

- The area of the base, A, is One-half (8) (14) = 56 meters squared.

- The volume of the prism, V is (56) (7) = 392 meters cubed

Step-by-step explanation:

To find the volume of right triangular prism, the following steps should be followed:

The formula bfor calculating the volume = Base Area × Height.

Step 1:

- Use the formula A = one-half b h to find the area of the base.

This formula of a triangle bus used because the base of a triangular prism is triangular in nature.

b is the base of the triangle

h is the height of the triangle

Step 2:

Given base if triangle = 8m

Height of triangle = 14m

We substitute this values into the formula of the base area to have the second step:

Base area = 1/2(8)(14) = 56m²

- The area of the base, A, is One-half (8) (14) = 56 meters squared.

Step 3:

Then we calculate the volume if the prism where height of the prism is 8m

volume of the prism = 56 × 7

= 392m³.

This gives us the final step

- The volume of the prism, V is (56) (7) = 392 meters cubed

8 0
3 years ago
Read 2 more answers
What do I do in order to solve this problem?
DENIUS [597]

Answer:

Step-by-step explanation:

There are two LEGS in a RIGHT TRIANGLE. In order to find the HYPOTENUSE, you must find the OPERATION. Then ROUND.

4 0
3 years ago
My Homework Mr Thompson please help!!
Nady [450]

Answers:

  1. C) Factored form
  2. C) Standard form
  3. D) The y intercept is -8
  4. B) Two solutions: x = -5 or x = 5
  5. B) Apply square root to both sides

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

Explanations:

  • For problems 1 and 2, there's not much to say other than you'll just have to memorize those terms. Standard form is ax^2+bx+c in general. The exponents count down 2,1,0. Factored form is where we have two or more factors multiplying with each other. Think of something like 21 = 7*3 showing that 7 and 3 are factors of 21.
  • For problem 3, the y intercept is the last value. It's the constant value. Plug in x = 0 and you'll get y = -8 as a result. The y intercept always occurs when x = 0.
  • In problem 4, we apply the square root to both sides to get x = -5 or x = 5. The plus or minus is needed. This is because (-5)^2 = 25.
  • In problem 5, we apply the square root to both sides to undo the squaring operation.
4 0
3 years ago
What is the answer to question b and d
kogti [31]

Answer:

Step-by-step explanation:

a) -3

b) 5

c) -2

d) -6

8 0
3 years ago
Read 2 more answers
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