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4 years ago

An irregular polygon has its external angles as 28°,40°,120°,142° and x. Find the value of x

Mathematics

1 answer:

zalisa [80]4 years ago

5 0

Answer:

X=30

Step-by-step explanation:

The whole polygon is 360 degrees so:

360-28-40-120-142=X, which is 30

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Given;, angle 2 = angle 4. angle 2 = 110<br>prove angle 3 = 70

Reil [10]

Answer:

Step-by-step explanation:

180-110+70

7 0

3 years ago

In a recent year, 22% of all college students were enrolled part-time. If 5.7 million college students were enrolled part-time t

Andrei [34K]

Answer:

1,254,000

Step-by-step explanation:

22%=0.22. 5,700,000 times 0.22=1,254,000

4 0

3 years ago

Simplify please and show steps:<br><br> Sec (x) tan (x) csc (x) cot (x) sin (x) cos (x)

Airida [17]

Answer:

<h2>The answer is 1</h2>

Step-by-step explanation:

First of all transform the expression using trigonometric identities

That's

$\sec(x) = \frac{1}{ \cos(x) }$

$\csc(x ) = \frac{1}{ \sin(x) }$

$\cot(x) = \frac{1}{ \tan(x) }$

So we have

$\frac{1}{ \cos(x) } \times \tan(x) \times \frac{1}{ \sin(x) } \times \frac{1}{ \tan(x) } \times \sin(x) \times \cos(x)$

Reduce the expression with tan x

We have

$\frac{1}{ \cos(x) } \times \cos(x) \times \frac{1}{ \sin(x) } \times \sin(x)$

Reduce the expression with cos x

That's

$1 \times \frac{1}{ \sin(x) } \times \sin(x)$

Reduce the expression with sin x

We have

$1 \times 1$

We have the final answer as

Hope this helps you

5 0

4 years ago

A pyramid is placed inside a prism as shown. The pyramid has the same base area, B, as the prism but half the height, h, of the

Alona [7]

The general formula of a pyramid with any base is 1/3 bh where b is the area of the base and h is the height. In this case, the height of the pyramid is said to be twice the height of the prism, h. Hence the area becomes 1/3 b*2h or equal to option A. 2/3 bh

4 0

3 years ago

Please help ill give brainlest

Artist 52 [7]

The Answer is D because 13/16 =0.8125

5 0

2 years ago