V = height x cross section area
CSA = 6 x 5.5 = 33
Height of sand = 148.5 / 33 = 4.5 inches
15^8 x 2^2 = 10,251,562,500
Answer:
We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:
Null hypothesis:
Alternative hypothesis:
And the best answer for this case would be:
Ha: p > 0.15
Step-by-step explanation:
Information given
n=250 represent the random sample taken
X=40 represent the number of people on the alumni mailing list
estimated proportion of people on the alumni mailing list
is the value to verify
z would represent the statistic
represent the p value
Hypothesis to test
We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:
Null hypothesis:
Alternative hypothesis:
And the best answer for this case would be:
Ha: p > 0.15
An equation is formed of two equal expressions. It will take for the radioactive element to decay from 960 grams to 295 grams in 25.54 minutes.
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The radioactive decay of an element is given by the formula,

Given the half-life of the element is 15 minutes, therefore, we can write,

Now, the time it will take for 960 grams to decay to 295 grams is,

Hence, it will take for the radioactive element to decay from 960 grams to 295 grams in 25.54 minutes.
Learn more about Equation:
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Answer:
-20
Step-by-step explanation:
10
-10
-------
0
-8
-2
------
-10
-6
-4
-------
-20
answer is (-20)