Answer:
the mean is 5
Step-by-step explanation:
Reorder terms so constants are on the left
(3x + 7) 8x^2
8(3x +7)x^2
Distribute
Answer: 24x^3+56x^2
Answer:
(x) = 
Step-by-step explanation:
Rearrange the equation making x the subject
y = 5x + 3 ( subtract 3 from both sides )
y - 3 = 5x ( divide both sides by 5 )
= x
Change y to x then
(x) = 
Answer:
x = ± 
Step-by-step explanation:
Given
ax² + b = c ( subtract b from both sides )
ax² = c - b ( divide both sides by a )
x² =
( take the square root of both sides )
x = ± 
Answer:
6.25%
Step-by-step explanation:
Each time you flip a coin, there is a 50% probability of it landing on tails. Each time you flip the coin, the 50% gets multiplied by
.
to the power of <em>4 </em>is 0.0625. 0.0625 in percentage form is of course 6.25%