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Alexandra [31]
3 years ago
12

Need help with this asap!!

Mathematics
1 answer:
Bingel [31]3 years ago
7 0

Answer:

≈ 53.7° (Option 3)

Step-by-step explanation:

In the figure given above , the lengths of other two sides (excluding hypotenuse) are known to us. So , it would be convenient to use 'tan'.

Length of side opposite to angle 'x' = 15 cm

Length of side adjacent to angle 'x' = 11 cm

Using 'tan' formula - \tan x = \frac{Side \: opposite \: to \: x}{Side \: adjacent \: to \: x} , lets solve this.

=> \tan x = \frac{15}{11}

Using inverse tan function , lets find x.

=> x = {\tan}^{-1}(\frac{15}{11} ) ≈ 53.74°

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Answers and Explanations:

4. They do not have a proportional relationship. For the first 3 sets, you can multiply x by 2.5 to get y. But that does not work for 8 and 18, so there is no proportional relationship between x and y.

5. Yes. For equilateral triangles, the side length is equal to the perimeter divided by 3, the number of sides. Vise versa, the side length times 3 equals the perimeter. If the side length is 3 in, multiply by 3 to get 9 in, the diameter.

6. Yes. it is proportional. X times 80 equals Y. In this case, in 8 hours, 640 tickets were sold.

<em>I hope these help! Feel free to give me Brainliest, if you thought the explanations helped your understanding. :)</em>

6 0
3 years ago
If f(x)=5x^2-8, what is the value of F(-3)?
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Answer:

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Step-by-step explanation:

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3 years ago
A worker at a snack stand opened a new box of cups. On the first day, the worker used 30 cups from the box. On the second day, t
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<em>630 cups</em>

Step-by-step explanation:

<u>Percentages</u>

This problem is most easily solved backward, i.e., from the final data up to the beginning.

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nevsk [136]

The equivalent sets are <u>X n Y = { } and X U Y= {5, 6, 7,8, 9, 10, 12 ,14}</u>

<h3>Set theory and notation</h3>

Given the following sets expressed as;

X = {8, 10, 12, 14}

Y = {5, 6, 7, 8,9}

Since union means the combination of all the elements in both sets and intersection is the common elements in the set, hence;

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Note that the intersection is an empty set since there is no common element

Learn more on set theory here: brainly.com/question/13458417

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