Answer:
x = 14
Step-by-step explanation:
3x/-8 = -21/4
(3x/-8)×-8 =( -21/4)×-8
3x = 42
3x/3 = 42/3
x = 14
hope it's helpful
Answer:
115
Step-by-step explanation:
Given :
Mean of intelligence score = 100
Standard deviation of intelligence score = 15
Since both are perfectly correlated,
The Zscore ON SAT = +1.0
Using the standard normal interpretation, Xcore on SAT of +1.0 means 1 standard deviation to the right
This means :
Mean + 1 standard deviation
100 + 1*15
= 115
We could use the Zscore formula directly too:
Zscore = (x - mean) / standard deviation
Zscore = +1 ; x = score
Hence, we have
1 = (x - 100) / 15
1 * 15 = x - 100
15 = x- 100
x = 15 + 100
x = 115
Answer:
radius = 5.75 units
circumference = 36.11 units
Area = 103.81625 square units
Step-by-step explanation:
Radius = 11.5 / 2 = 5.75
Circumference = 11.5 x 3.14 = 36.11
Area = 5.75 x 5.75 x 3.14 =
33.0625 x 3.14 =
103.81625 units square
This is all if pi = 3.14
Hope that helps!
Answer:
Interest rate is 5.25% a year.
Step-by-step explanation:
r = (1/54)((22252.5/18000) - 1) = 0.004375
r = 0.004375
Convert decimal to percentage
R = 0.004375 * 100 = 0.4375%/month
Calculate annual rate
0.4375%/month × 12 months/year = 5.25% per year.
