3 years ago

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 = 4 $n^{2}$

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.

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

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Expected score=0.75

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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.

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What else ? Is that it ?

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Explain how to draw an angle that measures 145° using a protractor.

kirill [66]

Hopefully this makes sense!

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