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Gnom [1K]
3 years ago
7

Pls helppp!!! -------

Mathematics
1 answer:
Gelneren [198K]3 years ago
5 0

Answer:

∠ A ≈ 44.42°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos A = \frac{adjacent}{hypotenuse}  = \frac{AC}{AB} = \frac{5}{7} , then

∠ A = cos^{-1} (\frac{5}{7} ) ≈ 44.42° ( to the nearest hundredth )

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Which of the following is not a case of direct variation?a Number of sheets of some kind and increased when their total weight i
VladimirAG [237]

Answer:

Step-by-step explanation:

If two variables, x and y have a direct variation, it means that an increase in x would lead to a corresponding increase in y. A decrease on x would lead to a corresponding decrease in y.

Therefore, we would compare the scenarios to determine which is not a direct variation. The correct option is

d) Time taken will be less if number of workers are increased to complete the same work.​

The rest are direct variation scenarios

3 0
2 years ago
1. If a side started out with a side length of 11 and ended with a side length of 71 what is the dilation's scale factor? Write
jeka57 [31]

Regarding dilation, it is found that:

1. The scale factor is of 6.45

2. The scale factor is of 1.4375.

3. the image will be smaller than the pre-image.

<h3>Dilation</h3>

A dilation is one type of transformation that is applied to images, in which the side lengths are multiplied by a constant called scale factor, changing the side lengths of the image.

In item a, the initial length was of 11 and the final length is of 71, hence the multiplier, which is the scale factor, is given as follows:

71/11 = 6.45.

In item b, the initial length was of 16 and the final length was of 23, hence the scale factor is given as follows:

23/16 = 1.4375.

For item 3, the multiplier is a number that is less than 1, meaning that the image is smaller than the pre-image.

More can be learned about dilation at brainly.com/question/3457976

#SPJ1

6 0
1 year ago
There are 2 yellow marbles and 11 blue marbles in a bag. You randomly choose one of the marbles. What is the probability of choo
Dahasolnce [82]

Answer:

The probability of choosing a yellow marble is 2/13

Step-by-step explanation:

There are 2 yellow and 11 blue marbles in the bag or a total of 13 marble

P(yellow) = number of yellow marbles / total marble

                = 2/13

The probability of choosing a yellow marble is 2/13

5 0
2 years ago
Read 2 more answers
Giving 20 points and brainiest!
sladkih [1.3K]

Answer:

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Step-by-step explanation:

they all equal 1/2

Im not sure if thats what it was asking but yea

6 0
2 years ago
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Can any number be written in scientific notation
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Yes, I'm relatively sure any number can be written in scientific notation.
5 0
3 years ago
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