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Ksenya-84 [330]
3 years ago
14

What type of number is -4\pi−4πminus, 4, pi?

Mathematics
1 answer:
Kobotan [32]3 years ago
5 0

Answer:

Choice C Rational

Step-by-step explanation:

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How many different ways are there to rearrange the letters of the word EXAM, if you don't care if the results is a recognizable
Vlada [557]
In this case, all letters are unique.

Start by holding the first letter:
E - XAM
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E - MAX
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So there are 6 combinations here.

Repeat for all 4 letters.

6 x 4 = 24

This is same as 4x3x2x1.

For 3 unique characters, it is 3x2x1.
For 5 unique characters, it is 5x4x3x2x1
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6 0
3 years ago
A box of 20 dictionaries costs $84. An individual dictionary costs $5. You need at least 55 dictionaries. Find the price of each
SOVA2 [1]

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3 years ago
Evaluate the following double integral where a = 2y
Keith_Richards [23]

Change the order of integration.

\displaystyle \int_0^1 \int_{2y}^2 \cos(x^2) \, dx \, dy = \int_0^2 \int_0^{x/2} \cos(x^2) \, dy \, dx \\\\ ~~~~~~~~ = \int_0^2 \cos(x^2) y \bigg|_{y=0}^{y=x/2} \, dx \\\\ ~~~~~~~~ = \frac12 \int_0^2 x \cos(x^2) \, dx

Substitute u=x^2 and du=2x\,dx.

\displaystyle \frac12 \int_0^2 x \cos(x^2) \, dx = \frac14 \int_0^4 \cos(u) \, du = \frac14 \sin(u) \bigg|_{u=0}^{u=4} = \boxed{\frac{\sin(4)}4}

4 0
1 year ago
2x + 8 = 2(x + 4) help pls
Fynjy0 [20]
2x +8=2x+8
2x-2x=8-8
0x=0
So the answer is 0
7 0
3 years ago
Read 2 more answers
Find the equivalent expression 3p + 12m + 8
____ [38]

Answer:

3(p+4m) + 8

Step-by-step explanation:

Factor out a 3 for the first two terms, 3(p+4m) and add 8 like usual


6 0
3 years ago
Read 2 more answers
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