Answer:
-40
Step-by-step explanation:
you multiply both sides by 10 to get the variable by its self
n = -40
hope this helps
Answer:
c) right
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
x + (-8x - 3) = 7
x -8x - 3 = 7
-7x = 10
x = -10/7
y = -8(-10/7) - 3
y = 80/7 - 3
y = 59/7
Answer:
Variance = 25
Step-by-step explanation:
<em>Standard deviation is the under root of variance.</em>
<em>Variance is the square of standard deviation.</em>
<u>Data:</u>
Mean = 70
Variance = ?
Standard deviation = √variance = 5
Variance = 5²
Variance = 25.
Therefore, the variance is 25.
Answer:
Step-by-step explanation:
The given expression is 
We want to find the value of h(-9).
We substitute r=-9 to obtain:
We multiply out to obtain:
We simplify the denominator to obtain:
This is the same as:
