so you need to get "a" alone
a-2+3=-2
subtract 3 from both sides
a - 2 = -2-3
a - 2 = -5
then add two to both sides
a = -3
as your answer
Answer:
T = 91
Step-by-step explanation:
Simplifying
T + -15 = 76
Reorder the terms:
-15 + T = 76
Solving
-15 + T = 76
Solving for variable 'T'.
Move all terms containing T to the left, all other terms to the right.
Add '15' to each side of the equation.
-15 + 15 + T = 76 + 15
Combine like terms: -15 + 15 = 0
0 + T = 76 + 15
T = 76 + 15
Combine like terms: 76 + 15 = 91
T = 91
Simplifying
T = 91
L think the answer is 2*-17*+30=-1,020
Answer:
Step-by-step explanation:
Given that random sample of 25 values is drawn from a mound-shaped and symmetrical distribution. The sample mean is 10 and the sample standard deviation is 2.
95 % CI for mean 9.1744 to 10.8256
Since p >0.05 accept null hypothesis.
a) Yes because std dev sigma not known. df = 24
b)
H0: x bar = 9.5
Ha: x bar not equals 9.5
c) t-statistic 1.250
d) P = 0.2234
e) We fail to reject null hypothesis
f) There is no statistical evidence at 5% level to fail to reject H0.