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Alexxandr [17]
2 years ago
6

Plz help me solve this problem

Mathematics
1 answer:
zhannawk [14.2K]2 years ago
3 0
I'm answer for u is 240 cubic units=b
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Professor York randomly surveyed 240 students at Oxnard University and found that 150 of the students surveyed watch more than 1
BaLLatris [955]

Answer:

1727 students

Step-by-step explanation:

Here we have the formula for sample size given as

n = \frac{p(1-p)z^2}{ME^2}

Where:

p = Mean

ME = Margin of error = 3

z = z score

Therefore, we have

p = 150/240 = 0.625

z  at 99 % = 2.575

ME = \pm3%

Therefore n = \frac{0.625(1-0.625)2.575^2}{0.03^2} = 1726.73

The number of students Professor York have to sample to estimate the proportion of all Oxnard University students who watch more than 10 hours of television each week within ±3 percent with 99 percent confidence = 1727 students.

5 0
3 years ago
I don’t know what to do
LuckyWell [14K]

original points (-2,0), (2,0), (0,2)

new points (-6.25,0),(6.25,0),(0,6.25)

the point (0,6.25) is the vertex that lies on y -axis

8 0
3 years ago
can someone please do this :// I need B done on Question 9 but I'm so mad because no one is giving me a correct fkin answer
Akimi4 [234]
Should be 4 for B because 8-4 would equal 4
7 0
2 years ago
Read 2 more answers
Explain how a(b + c ) can rewritten as (b + c) and as ba + ca
mart [117]

Answer:

The distributive property makes it possible

Step-by-step explanation:

Step one:

given the expression a(b + c )

the first step is to open the bracket, that is multiply all the terms in the bracket by a, so multiply b by a and c by a also.

Step two:

Thus, this property is called the distributive property of multiplication

a*b+ca

5 0
3 years ago
A) How many books were sold after 8 months?
irakobra [83]

Maybe if you put a picture I could help you out
4 0
3 years ago
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