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3 years ago

Help pleas! 10 POINTS

Mathematics

1 answer:

Gala2k [10]3 years ago

6 0

Answer:

Step-by-step explanation: rational numbers include negative numbers as well. whole number only contains positive integers.

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This one too I always get confused

otez555 [7]

Answer:

AHS

Step-by-step explanation:

Adjacent means same length and the opposiote sides angle is always the same one

4 0

3 years ago

Can someone please help? I'll give brainlist!

mrs_skeptik [129]

Step-by-step explanation:

Use TOA method (tan angle = opposite / adjacent)

Given Opposite = x

adjacent = 6,

$\tan(37) = \frac{opposite}{adjace nt} \\ \tan(37) = \frac{x}{6} \\ x = 6 \tan(37) \\ = 4.5units(nearest \: tenth)$

6 0

3 years ago

What’s the answer to the question down below

levacccp [35]

Any linear equation can be written as

y = mx+b

where m is the slope and b is the y intercept

m = 1/2 in this case. It represents the idea that the snow fell at a rate of 1/2 inch per hour. In other words, the snow level went up 1/2 an inch each time an hour passed by.

b = 8 is the y intercept. It's the starting amount of snow. We start off with 8 inches of snow already.

The info "snow fell for 9 hours" doesn't appear to be relevant here.

3 0

3 years ago

12 units 6 units What is the area of the rectangle above?

iris [78.8K]

Answer:

Step-by-step explanation:

Area for a Rectangle: $A=wl$

$A= wl = 6 * 12\\A =72$

4 0

3 years ago

A statistics teacher started class one day by drawing the names of 10 students out of a hat and asked them to do as many pushups

mash [69]

Using the t-distribution, we have that the 95% confidence interval for the true mean number of pushups that can be done is (9, 21).

For this problem, we have the standard deviation for the sample, thus, the t-distribution is used.

The sample mean is of 15, thus $\overline{x} = 15$ .
The sample standard deviation is of 9, thus $s = 9$ .
The sample size is of 10, thus $n = 10$ .

First, we find the number of degrees of freedom, which is the one less than the sample size, thus df = 9.

Then, looking at the t-table or using a calculator, we find the critical value for a 95% confidence interval, with 9 df, thus t = 2.2622.

The margin of error is of:

$M = t\frac{s}{n}$

Then:

$M = 2.2622\frac{9}{\sqrt{10}} = 6$

The confidence interval is:

$\overline{x} \pm M$

Then

$\overline{x} - M = 15 - 6 = 9$

$\overline{x} + M = 15 + 6 = 21$

The confidence interval is (9, 21).

A similar problem is given at brainly.com/question/25157574

6 0

3 years ago