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slava [35]
3 years ago
8

I know its big...sorry for that, but i really need the awnsers -_-

Mathematics
2 answers:
melamori03 [73]3 years ago
7 0
16- 3cm^3 because 3x3x3=27
24- 1-3
25- 1, because any number to the 0 power equals 1.

sorry i couldn’t answer the rest!!
BlackZzzverrR [31]3 years ago
3 0

Answer:

#20 is irrational,  #24 is 33/100, and #25 is 0  

Step-by-step explanation:

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(5,-3), (5,8). Find slope
anzhelika [568]

Answer: 0 slope, horizontal line.

Step-by-step explanation:

when using y2-y1/x2-x1, you would get 8-(-3)/5-5. This simplifies to 11/0, which means that the line would have 0 slope. A line with 0 slope is a horizontal line.

7 0
3 years ago
A research firm wants to compute an interval estimate with 90% confidence for the mean time to complete an employment test. Assu
gavmur [86]

Answer:

b. 98

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

M = 0.5, \sigma = 3

M = z*\frac{\sigma}{\sqrt{n}}

0.5 = 1.645*\frac{3}{\sqrt{n}}

0.5\sqrt{n} = 4.935

\sqrt{n} = 9.87

n = 97.42

So a sample of at least 98 is required.

The correct answer is:

b. 98

5 0
3 years ago
Solve for y:<br> y+5x=6;x= -1,0,1
AlekseyPX
When x = -1

y + 5x = 6

y = 6 - 5x

y = 6 - (5)(-1)

y = 6 - (-5)

y = 11

when x = 0

y = 6 - 5x

y = 6 - (5)(0)

y = 6 - 0

y = 6

when x = 1

y = 6 - 5x

y = 6 - (5)(1)

y = 6 - 5

y = 1
7 0
3 years ago
Read 2 more answers
Expand.<br> Your answer should be a polynomial in standard form.<br> 2x^2(9x^2 – 16)
igor_vitrenko [27]
18x^4-32x^2 in standard form I believe.
7 0
3 years ago
Find the area and the circumference of the circle. Round your answers to the nearest hundredth.​
konstantin123 [22]

The Area Of The Circle Is 452.16

The Circumference Of The Circle Is 75.36

6 0
3 years ago
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