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Marysya12 [62]
3 years ago
7

1.)24:56=X:46

Mathematics
1 answer:
Usimov [2.4K]3 years ago
8 0

Answer:

what's the question???/

Step-by-step explanation:

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Using the figure below, find the area of the circle.
jeyben [28]
Refers to the attachment
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3 years ago
A simple random sample of items resulted in a sample mean of . The population standard deviation is . a. Compute the confidence
damaskus [11]

Answer:

Following are the solution to this question

Step-by-step explanation:

Please find the complete question in the attached file.

In point a:

a=0.05 \\\\| Z(0.025)|= 1.96  \text{(check in normal table)} \\\\ 95 \% \  CI \\\\\bar x  \pm  \ Z \times \frac{s}{\sqrt{n}}\\\\\to 80 \pm  1.96 \times \frac{15}{\sqrt{60}} \\\\\to (76.20448, 83.79552)

In point b:

95 \%  \ CI \ is \\\\ \bar x  \pm  Z \times \frac{s}{\sqrt{n}}\\\\\to  80 \pm 1.96 \times \frac {15}{\sqrt{120}}\\\\\to (77.31616,  82.68384)

In point c:

A large sample is a smaller error margin.

8 0
3 years ago
If the graph of the function g defined by g(x)=x^2+2 is translated vertically downward by 3 units, it becomes the graph of a fun
Alona [7]
We need only subtract 3 units from <span>g(x)=x^2+2 to obtain the function h(x).
The correct result is h(x)=</span><span>x^2+2 -1.</span>
4 0
3 years ago
Find the slope of the line through the pair of points.<br> (13, 5) and (3,5)
Ronch [10]

Answer: 0

Step-by-step explanation:

So the slope of a line is equal to rise over run, or the change in x over the change in y. We can solve for the change in x and the change in y by finding their differences. For the math, we use the formulas y2 - y1/x2 - x1. Filling in this formula we get, (5-5)/(3-13), which is equal to 0/10. Because 0 divided by anything is 0, the answer here is 0.

8 0
3 years ago
Z= -19i +14 what is the real part of z?
Butoxors [25]
The answer is z=-19i+14
5 0
3 years ago
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