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statuscvo [17]
3 years ago
8

PLEASE ANSWER FOR 15 POINTS!!

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
4 0
The amount of paint required to paint the whole cupboard is:

https://tex.z-dn.net/?f=2%5Ctimes2.5%5E2%2B4%5Ctimes%282.5%5Ctimes3.5%29%0A%5C%5C%3D47.5+++ft%5E2

The amount of paint required to paint all but the bottom surface is:

https://tex.z-dn.net/?f=2.5%5E2+%2B+4%282.5%5Ctimes3.5%29%0A%5C%5C%3D+41.25+ft%5E2

So the difference in paint required is 6.25 square feet worth of paint.
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A slice is made perpendicular to the base of a right rectangular prism as shown.
Eduardwww [97]

Answer:

The correct option is 1. The area of cross section area is 48 mm².

Step-by-step explanation:

From the find it is noticed that the cross section is a rectangle with length 4 mm and width is 12 mm.

The area of a rectangle is the product of its dimensions.

A=l\times w

Where, l is length of the rectangle and w is width of the rectangle.

The area of cross section is

A=4\times 12

A=48

Therefore the area of cross section area is 48 mm². Option 1 is correct.

8 0
3 years ago
What is the equivalent fraction to 2/3
Paraphin [41]

Answer:4/6

Step-by-step explanation:because we multiply the fraccion by 2

8 0
3 years ago
A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decre
Dmitry [639]

Using the t-distribution, it is found that since the p-value of the test is of 0.0302, which is <u>less than the standard significance level of 0.05</u>, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

At the null hypothesis, it is <u>tested if the consumption is not different</u>, that is, if the subtraction of the means is 0, hence:

H_0: \mu_1 - \mu_2 = 0

At the alternative hypothesis, it is <u>tested if the consumption is different</u>, that is, if the subtraction of the means is not 0, hence:

H_1: \mu_1 - \mu_2 \neq 0

Two groups of 22 patients, hence, the standard errors are:

s_1 = \frac{45.1}{\sqrt{22}} = 9.6154

s_2 = \frac{26.4}{\sqrt{22}} = 5.6285

The distribution of the differences is has:

\overline{x} = \mu_1 - \mu_2 = 52.1 - 27.1 = 25

s = \sqrt{s_1^2 + s_2^2} = \sqrt{9.6154^2 + 5.6285^2} = 11.14

The test statistic is given by:

t = \frac{\overline{x} - \mu}{s}

In which \mu = 0 is the value tested at the null hypothesis.

Hence:

t = \frac{25 - 0}{11.14}

t = 2.2438

The p-value of the test is found using a <u>two-tailed test</u>, as we are testing if the mean is different of a value, with <u>t = 2.2438</u> and 22 + 22 - 2 = <u>42 df.</u>

  • Using a t-distribution calculator, this p-value is of 0.0302.

Since the p-value of the test is of 0.0302, which is <u>less than the standard significance level of 0.05</u>, the data provides convincing evidence that the average food intake is different for the patients in the treatment group.

A similar problem is given at brainly.com/question/25600813

4 0
3 years ago
△1 is similar to △2. Which series of transformations can be used to transform △1 to △2?
olchik [2.2K]
You can do it just believe in your self
7 0
3 years ago
Please help i dont know if my answer is right
sveta [45]

Answer:

The answer is D.117

Step-by-step explanation:

Supplementary angles equal 180°.

180-63=117

3 0
3 years ago
Read 2 more answers
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