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maria [59]
3 years ago
8

Answer ASAP Find the circumference of the given circle (7 inches) use pi (3.14)

Mathematics
1 answer:
Firdavs [7]3 years ago
7 0

Answer:

43.98

Step-by-step explanation:

is 7 inches the radius or the diameter?

if 7 inches is the radius then 43.98 is the answer

if 7 inches is the diameter 21.99 is the answer

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27-4(26-2×3)to the 2nd power
Svetlanka [38]
First do the ones in the parentheses. So, 2x3=6. 26-6=20. 20^2=400. Now you have 27-4x400. 4x400=1600. 27-1600=-1573.
5 0
3 years ago
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What number is 40% of 307<br> Input only whole numbers.
Alina [70]

Answer:

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At the local pet store, zebra fish cost $2.00 each and neon tetras cost $2.15 each. If Ernesto bought 15 fish for a total cost o
bezimeni [28]
So first create and define your variables:
Z = amount of zebra fish
N = amount of neon tetras

Now create your equations:
2z+2.15n=31.20
z+n=15
This is your system. There are multiple methods to use but in this problem I’ll use the substitution method by simplifying the bottom equation.
2z+2.15n=31.20
z=15-n
Now I’ll plug the bottom equation into the top one.
2(15-n)+2.15n=31.20
And just solve from here.
30-2n+2.15n=31.20
0.15n=1.20
n=8
So he bout 8 neon tetras, and 15-8= 7, so he bought 7 zebra fish
6 0
3 years ago
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3x^2-4x+1, match the following
il63 [147K]

Answer:

x = variable

3 = coefficient

1 = constant

3x^2-4x+1 = algebraic expression

2 = degree

Step-by-step explanation:

variables are typically the letters in equations (usually x and y)

coefficients are the numbers attached to the variables

constants don't have any variables attached

algebraic expressions are the full expression

degrees are the small numbers in the top right corners on either constants, variables or coefficients

Hope this helps!

8 0
3 years ago
What Is the factors of 46
ivolga24 [154]
These are the factors of 46: 1,2,23,46
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3 years ago
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