( 2a + 3 ) - ( 4a - 8 ) = 7
2a + 3 - 4a + 8 = 7
-2a + 11 = 7
-2a = -4
a = -4 / -2
a = 2
Answer: 40
Step-by-step explanation:
maybe
Answer:
9x^4+3x^2 -6
Step-by-step explanation:
(3x^2-2)(3x^2+3)
expand to remove the bracket
9x^4 + 9x^2 -6x^2 - 6
9x^4 + 3x^2- 6
Answer:
B. |-6|<|-7|
Step-by-step explanation:
|-6| = 6
|-7| = 7
and 6 <7 so the answer is B.
Answer:

Explanation:
1. Use the scale ratio to set a proportion with the unknown lenght.

2. To solve for x, use cross multiplication:

3. Divide both sides by 24inches:

4. Simplify:
