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3 years ago

Earth’s surface is approximately 70% water. There is no water on the surface of Mars, and its diameter is roughly

Mathematics

1 answer:

Pie3 years ago

8 0

Answer:

Earth

Step-by-step explanation:

You don't need scientific notation.

The areas of similar figures are proportional to the square of their linear scale factor. If Mars is 1/2 the diameter of Earth, its total surface area is (1/2)² = 1/4 that of Earth.

That is, the land area of Mars is 25% of the total area of Earth.

The land area of Earth is 1-70% = 30% of the total area of Earth. 30% is more than 25%.

Earth has more land area than Mars.

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Find each missing length to the nearest tenth.

Llana [10]

Answer:

8.944

Step-by-step explanation:

To find the missing Length, Use Pythagorean Theorem!

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$4^2+8^2=c^2$

$16+64=c^2$

$80=c^2$

$\sqrt{80} =8.944$

so it is approximately 10 but not quiet

hope this helps

6 0

3 years ago

Is F=((x,y) | x+y=10 a function or a relation

asambeis [7]

that is a function man

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3 years ago

The measure of one angle of a right triangle is 56∘ more than the measure of the smallest angle. Find the measure of the smalles

GrogVix [38]

Answer:

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step by step

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7 0

3 years ago

If using the method of completing the square to solve the quadratic equation

lara [203]

Answer:

x² + 7x + 10 = 0

Subtract 10 from both sides

x² + 7x = -10

Use half the x coefficent (7/2) as the complete the square term

(x + 7/2)² = -10 + (7/2)²

note: the number added to "complete the square" is (7/2)² = 49/4

(x + 7/2)² = -10 + 49/4

(x + 7/2)² = 9/4

Take the square root of both sides

x + 7/2 = ±3/2

Subtract 7/2 from both sides

x = -7/2 ± 3/2

x = {-5, -2}

6 0

3 years ago

Read 2 more answers

I need help solving |-5y+9|= 14

Dmitry [639]

Answer:

-5 turns into 5 and the y is probably 1, so 5+9 is equal to 14.

Step-by-step explanation:

8 0

2 years ago

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