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padilas [110]
4 years ago
9

In spherical geometry lines are called _____

Mathematics
1 answer:
tester [92]4 years ago
5 0

Answer:

the answer is: a great circle

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A region with a 7-mile radius has a population density of about 2200 people per square mile. Find the number of people who live
jek_recluse [69]

Answer:

340,000\ people

Step-by-step explanation:

step 1

Find the area of the circular region

The area of the circle is equal to

A=\pi r^{2}

we have

r=7\ mi

assume

\pi =3.14

substitute

A=(3.14)(7)^{2}

A=153.86\ mi^{2}

step 2

Find the number of people who live in the region

Multiply the area by the density

so

A=153.86*(2,200)=338,492\ people

Round to the nearest ten thousand

338,492=340,000\ people

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3 years ago
12. Use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 8 and the 8th term is 18.
klemol [59]

Answer:

12

Step-by-step explanation:

8 0
3 years ago
Computer table measures 10ft by 17ft. Cost of table is $16 per sq ft. How much will the table cost.
alexandr1967 [171]
Hello! First things first, we need to find the area of the table. Just by doing some basic math, 10 * 17 is 170. The area of the computer table is 170 square feet. The table costs $16 per square feet. To find the total cost, all you have to do is multiply the area of the table by the cost per square foot. 170 * 16 is 2,720. The computer table will cost $2,720.
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4 years ago
How do I find the derivative of 2(f(x)+g(x))?
kramer
\bf 2[f(x)+g(x)]\implies 2f(x)+2g(x)\implies 2\cfrac{df}{dx}+2\cfrac{dg}{dx}\\\\
-------------------------------\\\\
\cfrac{1}{2}\left[ f(x)\cdot g(x)  \right]\implies \cfrac{1}{2}\left[ \stackrel{product~rule}{\cfrac{df}{dx}\cdot g(x)+f(x)\cdot \cfrac{dg}{dx}} \right]
\\\\\\
\cfrac{1}{2}\cdot \cfrac{df}{dx}\cdot g(x)+\cfrac{1}{2}\cdot \cfrac{dg}{dx}f(x)
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3 years ago
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Free brainist for right anwsers
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Answer:

i need the points sorry!

Step-by-step explanation:

ignore me

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