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amm1812
3 years ago
9

A circle has a diameter of 5. What is the area and circumference.

Mathematics
2 answers:
ivann1987 [24]3 years ago
5 0

Area:7 circumference:15

Aloiza [94]3 years ago
3 0

Answer:

Area= 19.63 units squared Circumference= 15.71 units

Step-by-step explanation:

Area= π r ^2

Circumference= 2π r

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3/4 (x +21) = 10 1/2<br> What does x equal?
Elena L [17]

Answer:

\huge \boxed{ \boxed{ \red{x  =  - 7}}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • equation
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<h3>let's solve:</h3>
  1. \sf distribute :  \\  \frac{3 x+ 63}{4}  =  10\frac{1}{2}
  2. \sf simplify \: mixed \: fraction :  \\  \frac{3x + 63}{4}  =  \frac{21}{2}
  3. \sf cross \: multipication :  \\ 2(3x + 63) = 84
  4. \sf distribute \: 2 :  \\ 6x + 126 = 84
  5. \sf cancel \: 126 \: from \: both \: sides :  \\ 6x + 126 - 126 = 84 - 126 \\ 6x =  - 42
  6. \sf divide \: both \: sides \: by \: 6 :  \\  \frac{6x}{6}  =  \frac{ - 42}{6}  \\  \bcancel{\frac{6x}{6} } =  \frac{ \cancel{ - 42}  \: ^{ - 7} }{  \cancel{ \: 6}}  \\   \therefore \: x =  - 7
3 0
3 years ago
Read 2 more answers
Follow the rule x2+2 to complete the pattern of 8
lilavasa [31]
I think your saying 8=x if that is the case then you would plug it in (8)2+2 which would equal 18
4 0
4 years ago
Round 961 to one significant figure
oksano4ka [1.4K]
1000 because i rounded the hundreth's to get one significant figure, and anything more than 5 is rounded up, anything less than 5 is rounded down.


Hope i did some use! <3
7 0
3 years ago
Assume that y varies directly with x. If y=9 when x=−3, find x when y=6.
Dafna1 [17]

Answer:-2

Step-by-step explanation:

8 0
3 years ago
I just need Y. I already found X
garri49 [273]
Y = 54.

This is really complicated to explain, but since x is 36 and the angle on the other side of the known angle is also 36, that makes y 54. Each pair of angles has to equal to 90 degrees.

Hope this helps!
4 0
2 years ago
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