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Inessa [10]
3 years ago
7

Given:

Mathematics
1 answer:
stira [4]3 years ago
5 0
Angle CFE is an alternate interior angle with angle FCD
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Suppose a white dwarf star has a diameter of approximately 1.8083 to the power of 4 km. Use the formula 4n to the power of 2 to
aivan3 [116]

ANSWER:

The surface area of the star is 3.2700 x 10^{8} square kilometres.

EXPLANATIONS:

Diameter of the star = 1.8083 x 10^{4} Km.

Surface area of the star = 4n^{2}

Where n is the radius of the star.

So that;

n = \frac{ 1.8083 * 10^{4} }{2}

   = 0.90415 x 10^{4}

n =  0.90415 x 10^{4} Km

Thus,

Surface area = 4 x (0.90415*10^{4} )^{2}

                     = 326994889

Surface area = 3.2700 x 10^{8} km^{2}

Therefore, the surface area of the star is 3.2700 x 10^{8} square kilometres.

4 0
2 years ago
Each question on a multiple-choice exam has four choices. One of the choices is correct, worth four points. Another choice is wr
kifflom [539]

Answer:A)0.75

Step-by-step explanation:

Given

There are four options to a question

out of which one is correct with 4 points

one is wrong but carries 1 point

Other two are wrong with a negative Point

Probability of selecting an option is \frac{1}{4}

Expected score=\frac{1}{4}\times 4+\frac{1}{4}\times 1+\frac{1}{4}\times (-1)+\frac{1}{4}\times (-1)

Expected score=1+0.25-0.5

Expected score=0.75

8 0
2 years ago
How do you graph y= -4x with an exponent of 2
ololo11 [35]

Answer:

Go to Desmos.com

Step-by-step explanation:

If you go to Desmos.com and type in the equation, it will graph it for you.

8 0
3 years ago
Clayton is shopping for a new shower. He is comparing the water usage of cach as he is shopping .
Jlenok [28]
What else ? Is that it ?
7 0
2 years ago
Explain how to draw an angle that measures 145° using a protractor.
kirill [66]
Hopefully this makes sense!

6 0
3 years ago
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