Calculate the unknown angles.

Mathematics

1 answer:

Westkost [7]3 years ago

7 0

Answer:

C 100°

D 55°

The one next to D is 125°

B 55°

A 100°

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Stolb23 [73]

2(x-1)=42
2x-2=42
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8 0

2 years ago

Samuel bought a jacket for $16 in January. The cost of the jacket increased to $24 in September. What percent of the original pr

Assoli18 [71]

Answer:

The answer is option C=150%

Step-by-step explanation:

Original cost of the jacket=$16 in January

Final cost of jacket=$24 in September

What percentage must of the original price is the new?

The new price=the original price×(A percentage)

Where the new price=$24, the original price=$16, and the percentage=(x/100)

24=16×x/100

x=(24×100)/16=150%

The answer is 150%

8 0

3 years ago

4. Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from

lana [24]

Answer:

5.099*10^14 m^2

Step-by-step explanation:

Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from the Sun. This "re-radiation" from the Earth is not visible because it its peak wavelength is in the infrared part of the spectrum. Even the coldest parts of the Earth are way above absolute zero, so every square meter of Earth’s surface is radiating this energy out to space. Using the same radius given in step 2 above, and the formula for the area of a sphere, calculate the surface area of the Earth.

(The radius of the Earth is 6,370,000 meters.)

The earth is spherical in shape , so we use the formula for finding the surface area of a sphere

Surface Area= $4\pi r^{2}$