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KengaRu [80]
3 years ago
9

Estimate 1/4 times 21

Mathematics
1 answer:
olga55 [171]3 years ago
5 0

Answer:

63/4 or 15.75 or 153/4.

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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}

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Thus,

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

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3 years ago
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Step-by-step explanation:

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3 years ago
Which expression is equivalent to the perimeter of your the rectangle shown below?
blagie [28]
2(2x + 3) + 2(x=1)
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6 0
3 years ago
Solve this rational equation 1/x-4 + x/x-2 = 2/x^2-6x+8
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Step-by-step explanation:

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6 0
4 years ago
Find two numbers the quotient between. Then estimate the quotient. 41÷3
AleksandrR [38]

Answer:

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5 0
3 years ago
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