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expeople1 [14]
2 years ago
13

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
5 0

Answer:

If you are looking for x your answer will be x=2

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9x -1 = 80<br> A -10<br> B 9<br> C 10<br> D -9
Fittoniya [83]

Answer:

The answer is B!

Step-by-step explanation:

Add 1 to both sides, then divide 80 by 9!

5 0
2 years ago
The length of a swimming pool is 10 ft shorter than twice the width. the length is 35 ft. what is the width
Hatshy [7]
Okay so we need to figure out the width of the swimming pool using the length, and we know the width is 10 ft shorter than twice the width. I believe the easiest way to do this would be to first do 35-10, and then divide it in half. That gives us 12.5. To check our work I'll do the problem 12.5+12.5+10=35.

The width of the swimming pool is 12.5 ft.
8 0
2 years ago
Which linear inequality is represented by the graph?
ELEN [110]
Where is the graph?
7 0
2 years ago
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
Brainliest to first answer correct.
suter [353]

Answer:

Option A is correct.

Step-by-step explanation:

The height of the rectangular pack is h1 = 4r

The height of the parallelogram = 2r + the height of equilateral triangles with a side of 2r

The height of equilateral triangle with a side of 2r = (side)/2*√3

=(2r)/2 *√3 = r√3

The height of the parallelogram h2 = 2r+r√3 = r(2+√3)

So,the ratio of h1 to h2 is :

4r : r(2 +√3)

Cancelling r we get

Hence, the ratio is  4 : 2 +√3

5 0
3 years ago
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