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2 years ago

I need to solve for x and I’m confused it’s about angels please help me

Mathematics

1 answer:

likoan [24]2 years ago

8 0

Both 52 and 5x-8 are equal to each other due to being parral.
SO 5x-8=52

Add both sides.
8+8 52+8= 60

5x 60
Now divide both sides by 5 and you get 12=x Hope this helps!

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In a class of 55 21 study physics 24 study geography and 23 study economics and physics. if x students study all three subjects

Rus_ich [418]

The total number of students who studied only two subjects is 13.

The given parameters:

Total number of students, n = 55
Number of physics students = 21
Number of geography students = 24
Number of economics students = 23
Number of students for the 3 subjects, = x
Number of students who studied non = 2x

The number of students who studied only two subjects can be determined by applying overlapping three sets formula as shown below;

$Total = n(phy) + n(geo) + n(econ) + n(none)- n(double) - 2(all \ subjects)\\\\55 = 21 + 24 + 23 + 2x-n(double) - 2(x)\\\\55 = 68- n(double)\\\\n(double) = 68-55\\\\n(double) = 13$

Thus, the total number of students who studied only two subjects is 13.

Learn more about overlapping three sets here: brainly.com/question/2041029

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1 year ago

Use a calculator to approximate the measure of the acute angle A to the nearest tenth of a degree. sin A = 0.7793

Aleksandr [31]

The measure of acute angle A to the nearest tenth of a degree is 51.2°

<h3>Measure of angles</h3>

From the given information, we are to determine the measure of the angle.

The angle we are to determine its measure is acute angle A

From the given information, we have that

sin A = 0.7793

Thus,

A = sin⁻¹(0.7793)

Using calculator

A = 51.1965°

A ≅ 51.2°

Hence, the measure of acute angle A to the nearest tenth of a degree is 51.2°

Learn more on Calculating measure of angles here: brainly.com/question/9171516

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