Answer:
Answer (a) is correct
Step-by-step explanation:
This is not the same function that was given to you in the problem.
As you have typed it, this function is linear. The one in the homework problem is exponential.
We will ignore the linear function h(t) = 0.32 - 0.5t.
We will focus on h(t) = 0.32 - 0.5^t.
If t = 0, then 0.5^t = 0.5 ^0 = 1, and so h(0) = 0.32 - 1 = -0.68 => (0, -0.68)
Continuing with a few other t values chosen at random:
h(1) = -0.18
h(2) = 0.07
Notice that h is increasing as x increases!
h(4) = 0.2575
and so on.
answer A is the correct one.
h(1) = 0.32 - 0.5^1 = 0.32 - 0.5 = -0.18
5.25
%
Convert the percentage to a fraction by placing the expression over
100
100
. Percentage means 'out of
100
100
'.
5.25
100
5.25
100
Convert the decimal number to a fraction by shifting the decimal point in both the numerator and denominator. Since there are
2
2
numbers to the right of the decimal point, move the decimal point
2
2
places to the right.
525
10000
525
10000
Reduce the expression by cancelling the common factors.
Factor
25
25
out of
10000
10000
.
25
⋅
21
25
⋅
400
25
⋅
21
25
⋅
400
Cancel the common factor.
25
⋅
21
25
⋅
400
25
⋅
21
25
⋅
400
Rewrite the expression.
21
400
21
400
Convert the fraction to a decimal by dividing the numerator by the denominator.
0.0525
0.0525
Hope that help! :)
A: Suppose Mr. Moore decides to use 20 seventh graders as the sample. Is this sample a random sample? Explain your reasoning.
Ans: No, because he only chose the seventh graders which is invalid since he wants to have to use the mean height which involves the 6th, 7th and 8th graders.
B: Mr. Moore decides to use a random number generator to select 20 students from the school. Suppose that when choosing 20 students using the random generator on the graphing calculator, Mr. Moore’s sample is all eighth graders. Does that mean the sample is not a random sample? Explain your reasoning.
Ans: No, it is still a random sample. Since he is using a random generator, there is a possibility that the random generator would pick all students from the 8th grade. Unlike the first one, the random generator is not biased towards any grade, it is just a coincidence.
Answer:
b=-18
Step-by-step explanation:
If a line that passes through the point 
and it has slope 
, the equation of the line is:
<span> Add x to both lenght and width and you get 25+x and 10+x. Set up equation with new area </span>
<span>(25+X)(10+X)=1000 </span>
<span>solve using quadratic formula
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
</span>
