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Ede4ka [16]
2 years ago
15

What is the area of a circle with a radius of 1 foot?

Mathematics
2 answers:
Andreas93 [3]2 years ago
5 0

22/7 * 30.48 * 30.48

2919.81 cm square

1 foot = 30.48 cm

PLEASE MARK IT AS BRAINLIEST

SashulF [63]2 years ago
3 0
It would be Pi feet squared❤️
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[Quick Answer Needed] Which of the following shows the extraneous solution to the logarithmic equation?
Nitella [24]

Answer:

C

Step-by-step explanation:

Given the logarithmic equation

\log_4x+\log_4(x-3)=\log_4(-7x+21)

First, notice that

x>0\\ \\x-3>0\Rightarrow x>3\\ \\-7x+21>0\Rightarrow 7x

So, there is no possible solutions, all possible solutions will be extraneous.

Solve the equation:

\log_4x+\log_4(x-3)=\log_4x(x-3),

then

\log_4x(x-3)=\log_4(-7x+21)\\ \\x(x-3)=-7x+21\\ \\x^2-3x+7x-21=0\\ \\x^2+4x-21=0\\ \\D=4^2-4\cdot 1\cdot (-21)=16+84=100\\ \\x_{1,2}=\dfrac{-4\pm 10}{2}=-7,\ 3

Hence, x=3 and x=-7 are extraneous solutions

6 0
2 years ago
For 9-20 tell whether the first number is a multiple of the second number
jeyben [28]

Answer:

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28,3 - no

17,3 - no

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55,5 - yes

15,5 - yes

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32,8 - yes

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60,2 - yes

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Step-by-step explanation:

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7 0
2 years ago
An animal shelter has a total of 350 animals comprised of cats, dogs, and rabbits. If the number of rabbits is 5 less than one-h
Andrew [12]
This is the concept of algebra, suppose that the number of cats is x;
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7/2x=350+20
7/2x=370
x=370*2/7
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3 years ago
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KATRIN_1 [288]
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3 years ago
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Maslowich
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8 0
3 years ago
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