Answer:
Step-by-step explanation:
Step 1: Identify the approach:
With this problem, the general solution is to try manipulate given data and transform data into a new form, in which, the desired value is on the left side and all of other components which do not contain or are on the right side.
Step 2: Analyze:
Realize that in both equations, the and are in form of different signs. Then adding up corresponding sides of both equation can help eliminate these undesired components.
Step 3: Perform manipulation:
Rearrange:
Simplify:
Simplify:
Hope this helps!
:)
Answer:
D. 6.3 in^3
Step-by-step explanation:
V= 1/3 (3.14)(r^2)(h)
V= 1/3 (3.14) (1^2)(6)
V=6.3 in^3
Answer:
c
Step-by-step explanation: it was on usa test prep and the answer that was there was wrong.
Answer:
a
Step-by-step explanation:
Answer:
add all angles
Step-by-step explanation:
Answer:
The correct answer is B.
Step-by-step explanation:
Answer: 191
Step-by-step explanation:
Formula to find the minimum sample size required to estimate a population proportion or percentage:
, where = proportion estimated by prior study.
E= Margin of error.
z* = Critical z-value.
Given : Confidence level = 95%
Critical value for 95% confidence = z*=1.96
E= 7%= 0.07
Then,
Hence, the minimum sample size required=191