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scZoUnD [109]
3 years ago
15

The radius of a circle is 4 kilometers. What is the area of a sector bounded by a 45° arc?

Mathematics
2 answers:
Alinara [238K]3 years ago
6 0
I have no idea i’m struggling my self
SIZIF [17.4K]3 years ago
5 0

Answer:

1/8 pi

Step-by-step explanation:

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The endpoints of the longest chord on a circle are (4, 5.5) and (4, 10.5).the center of the circle is at the point , and its rad
Furkat [3]
 The midpoint of the points ( 4, 5.5 ) and ( 4, 10.5 ) is the center of the circle:
 C =(\frac{4+4}{2}, \frac{5.5+10.5}{2})
 C = ( 4, 8 ),  h=4, k=8
 r =\sqrt{(4-4)^{2} +(8-5.5)^{2} } = \sqrt{0+2.5^{2} }
 r = 2.5
 The equation of the circle in standard form:
 ( x - h )² + ( y - k )² = r²
 ( x - 4 )² + ( y - 8 ) = 6.25    
4 0
3 years ago
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if you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll more than a 4
Nutka1998 [239]

Answer:

12

Step-by-step explanation:

When you a coin flips there are 2 possible outcomes which are either heads, or tailer, when you roll a die there are six outcomes, one to six. Putting these together means you have a total of 2×6=12 outcomes

4 0
2 years ago
How do you subtract fractions
olya-2409 [2.1K]

Answer:

make the denominators ( bottom number ) the same and whatever u do to that do to the top

Step-by-step explanation:

e.g ½ - ⅓

make the common denominator 6

to get from 2 to 6 u times by 3 so it wud be 3/6

and then to get from 3 to 6 u times by 2 so do the same to the numerator (top number) so u get 2/6

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:)

7 0
2 years ago
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Sav [38]
The answers are:

A) V-Shaped (because absolute value graphs are v-shaped)
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4 0
3 years ago
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Write the expression 3m - 4n - 8 as a sum
vlada-n [284]
3m - 4n - 8 = 3m + (-4n) + (-8)

The trms of the expression: 3m; -4n; -8
8 0
3 years ago
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