Ask question

Ask question

All categories

MariettaO [177]

3 years ago

11

The measures of two supplementary angles are in the ratio of 4:5. find the number of degrees in the measure of the smaller angle

.

1 answer:

zvonat [6]3 years ago

5 0

The measure of the smaller angle is 80 degree

You might be interested in

I don't get it please answer

lbvjy [14]

Well what is example 2

5 0

3 years ago

275.9 × 10−4 in standard form

horrorfan [7]

Answer:

0.02759

Step-by-step explanation:

The units digit of the mantissa goes in the number place with the place value given by the exponential multiplier. Here, that means the 5 goes in the ten-thousandths place.

3 0

4 years ago

Read 2 more answers

Gretchen walked 7 / 10 miles on Saturday and 3 / 4 miles on Sunday. Without Solving do you think Gretchen walked more than a who

Lena [83]

Gretchen walked more than a whole mile on both days combined, because if on Saturday she walked 7/10 miles, she would have only needed 3/10 of a mile more to walk on Sunday to make 1 mile. On Sunday, however, she walked 3/4 miles, and using common knowledge, we know that 3/4 miles is more than 3/10. Thus, Gretchen walked more than a mile on both days combined.

4 0

3 years ago

ou are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on cons

PolarNik [594]

Answer:

$(\frac{4\sigma}{2.056})^2$ , rounded up, if needed, citizens should be included in the sample, in which $\sigma$ is the standard deviation of the population.

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:

$\alpha = \frac{1 - 0.96}{2} = 0.02$

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

That is z with a pvalue of $1 - 0.02 = 0.98$ , so Z = 2.056.

Now, find the margin of error 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.

Within 4 years of the actual mean

We have to find n for which M = 4. So

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

$4 = 2.056\frac{\sigma}{\sqrt{n}}$

$2.056\sqrt{n} = 4\sigma$

$\sqrt{n} = \frac{4\sigma}{2.056}$

$(\sqrt{n})^2 = (\frac{4\sigma}{2.056})^2$

$n = (\frac{4\sigma}{2.056})^2$

$(\frac{4\sigma}{2.056})^2$ , rounded up, if needed, citizens should be included in the sample, in which $\sigma$ is the standard deviation of the population.

8 0

3 years ago

A rectangular prism has length of 6.7 in, width of 9.3 in and a height of 10.5 in. What is the volume? how to solve

Lemur [1.5K]

Answer:

V = 654.255 in^3

Step-by-step explanation:

6.7 in x 9.3 in x 10.5 in = 654.255 in^3 (cubic inches)

6 0

2 years ago