Answer:
3428.57
Step-by-step explanation:
20,000/7=
2857.14
20,000/5=
4,000
2857+4,000=
6857.14/2=
3428.57
Answer:
x² - 16
Step-by-step explanation:
Given
(x - 4)(x + 4)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x + 4) - 4(x + 4) ← distribute both parenthesis
= x² + 4x - 4x - 16 ← collect like terms
= x² - 16
Yes. When you multiply a decimal number by 10, the decimal point moves one point to the right. Example:
0.05*10 = 0.5
This means that 0.003*10=0.03 since the decimal point moved one place to the right.
Answer:
46
Step-by-step explanation:
√(2x + 8) − 6 = 4
Add 6 to both sides:
√(2x + 8) = 10
Square both sides:
2x + 8 = 100
Subtract 8 from both sides:
2x = 92
Divide both sides by 2:
x = 46
The answer is 3.
2x2=4
4-1=3
