Answer: Bottom and top (or which ever one is the small box in the middle and the one that looks like the small box in the middle)
Step-by-step explanation: the middle rectangle is the bottom and the other one like it is the top. the length is 7 in. and the height is 4 in. and 4 in. times 7 in. is 28in^2
Answer:
What is
Step-by-step explanation:
Answer:
3059
Step-by-step explanation:
3.5%=0.035
0.035x87,400
=3059
that's your answer.
Answer:
Answer is c
Step-by-step explanation:
In hypothesis testing whether to accept or reject null hypothesis, normally we find one method as using confidence interval. If the test statistic lies within confidence interval, we accept otherwise we reject.
For arriving confidence intervals we add and subtract margin of error from the mean we use in null hypothesis.
Margin of error = std error * critical value of test (Z or t etc)
For the same std deviation, std error = std dev/sq rt of sample size
Thus std error is inversely proportional to the square root of sample size.
If n becomes larger, std error becomes smaller and vice versa.
So margin of error increases for smaller sample size.
Since we have to select confidence level from a small sample, we have to select one which has the greatest margin of error=18
Hence answer is
c) 71%(+/-18%)
Answer:
Step-by-step explanation:
∠D = ∠B {opposite angles of parallelogram are equal}
∠D = 40°
In ΔDCA
∠DCA + ∠D + ∠CAD = 180 {Angle sum property of triangle}
57 + 40 + ∠CAD = 180
97 + ∠CAD = 180
∠CAD= 180 - 97
∠CAD = 83°
