MATHEMATICS MIDDLE SCHOOL

The radius of a circle is 15 feet. What is the angle measure of an arc π feet long?

Answers

Answer 1

Answer:

Answer:

9.144 arc feet long

Step-by-step explanation:

i just used a calculator

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Tonya took out a loan to help pay for her house. She borrowed $60,000 for 15 years at a yearly simple interest rate of 5%. How much interest will she end up paying the bank?A. $9,000 B. $450 C. $45,000 D. $450,000
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Finley has 152 yellow, red, and blue marbles in a bag. He has seven more red marbles than yellow marbles, and three times as many blue marbles as yellow marbles. How many yellow marbles does Finley have? Write an equation to represent this problem. Then solve the equation. A. x + x + 7 + 2x = 152; x = 36 B. x + x + 7 + x = 152; x = 48 C. x + x + 7 + 5x = 152; x = 21 D. x + x + 7 + 3x = 152; x = 29

Can someone explain to me why the answer is 3cos3x (it has something to do with chain rule i think)

Answers

Use the fundamental theorem of calculus. It says that

$\displaystyle(\mathrm d)/(\mathrm dx)\int_{\text{constant}}^(g(x))f(t)\,\mathrm dt=f(g(x))\cdot(\mathrm dg)/(\mathrm dx)$

In this case, $g(x)=3x$ and $f(t)=\cos t$ . Then

$\displaystyle(\mathrm d)/(\mathrm dx)\int_0^(3x)\cos t\,\mathrm dt=\cos(3x)\cdot(\mathrm d)/(\mathrm dx)3x=3\cos3x$

Which expression is equivalent to 1/4 (8-6x +12)

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1/4 (8-6x +12)
1/4(20 - 6x)
5 - 1.5x

Answer should be: 5 - 1.5x

Write an expression that is equivalent to 4(w+3)-2

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4w+10 See you have to multiply the w and 3 by 4 and then you get 4w+12-2 then you combine like terms to get your answer of 4w+10

How many 5-digit numbers can be formed using only odd digits?

Answers

Answer:

5^5

Step-by-step explanation:

10 five digit numbers can be formed using only odd digits

In a school with 300 students and 15 teachers what is the student - teacher ratio?

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It 20:1
This is a basic math problem which can be solved by simply dividing 300 by 15.

300:15
Ti simplfy just dived the two numbers

What is 78% of 112?..

Answers

Multiply 112 by 0.78 to find 78% of the original number. 112*0.78=87.36

To find what percent of number x is number y, you should divide number x by number y. Then multiply your result by 100 and this will give you the percentage. Your formula should look like x/y * 100.
so
78% of 112 = 87.36

Other Questions

Line segment AB measures 18 unit

You roll two number cubes. What is the probability of rolling double threes?

21/8 as a mixed number

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