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3 years ago

How do I find the area of the shaded blue region?

Mathematics

1 answer:

kogti [31]3 years ago

3 0

That's a 240 degree sector of a 9 inch radius circle. The whole circle has area πr² and we want 240/360 of it.

A = (240/360) π (9²) = 54 π

Answer: 54 π square inches

That's the exact answer. An approximation is

169.646 square inches

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What is the surface area of a sphere with a radius of 14 units?

zloy xaker [14]

Answer:

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Step-by-step explanation:

we know that

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we have

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substitute

$SA=4\pi (14)^{2}$

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3 years ago

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Bezzdna [24]

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Step-by-step explanation:

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7/10 + 2/10 , 13/16+ 2/16 , 4/5 + 1/5 , 7/15 + 2/15 , 9/20 + 3/20 , 5/8 + 1/8 . All in simplist form.

blondinia [14]

Hello!

<h3><em><u>Answers</u></em></h3>

1. $\frac{7}{10} + \frac{2}{10} = \frac{9}{10}$ Simplest form: $\frac{9}{10}$

2. $\frac{13}{16} + \frac{2}{16} = \frac{15}{16}$ Simplest form: $\frac{15}{16}$

3. $\frac{4}{5} + \frac{1}{5} = \frac{5}{5}$ Simplest form: $\frac{1}{1}$

4. $\frac{7}{15} + \frac{2}{15} = \frac{9}{15}$ Simplest form: $\frac{3}{5}$

5. $\frac{9}{20} + \frac{3}{20} = \frac{12}{20}$ Simplest form: $\frac{3}{5}$

6. $\frac{5}{8} + \frac{1}{8} = \frac{6}{8}$ Simplest form: $\frac{3}{4}$

<h3><em><u>Explanation:</u></em></h3>

Simply add the numerators of the like fractions together. The denominators remain the same.

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3 years ago

What is the solution to the system of equations?<br> 7x + 3y = -11<br> 2x + 5y=1

marta [7]

Answer:

x = -2 and y = 1

Step-by-step explanation:

for details see image

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