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Olin [163]
3 years ago
7

Help help math math math

Mathematics
2 answers:
marysya [2.9K]3 years ago
6 0
507 i think. you just square 13 then multiply that by pi which is 3
dybincka [34]3 years ago
6 0

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Here's the solution ~

The Radius of the circle is 13 ft

now, use the given formula to find the Area of circle ~

\qquad \sf  \dashrightarrow \: \pi {r}^{2}

\qquad \sf  \dashrightarrow \: 3{(13)}^{2}

\qquad \sf  \dashrightarrow \: 3(169)

\qquad \sf  \dashrightarrow \: 507

Therefore, Area of the circle is 507 ft²

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The length of the top of a table is 7 m greater than the width. the area is 78 msquared2. find the dimensions of the table.
Zinaida [17]
Let the width = x
      the length = x+7 
 => Area equation = length x width = x(x+7) = x^2 +7x = 78
=> x^2+7x -78 = 0
=> (x-6)(x+13)=0
=> x=6 or x=-13(no)
 => the width = 6 m
=> the length = 6+7= 13 m
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3 years ago
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ddd [48]

Answer:

\frac{0.04}{n}, or \frac{1}{25n}

Step-by-step explanation:

To divide, we can use fractions. So we can say that 0.04 divided by n is \frac{0.04}{n}, or \frac{1}{25n}.

8 0
4 years ago
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kenny6666 [7]
The sign isn’t switched. [ ie, -7 < 161 = 7 > -161 ]

Explanation :
When multiplying or dividing by a negative the sign flips.
7 0
3 years ago
Let f(x) = -2x - 7 and g(x) = -4x + 6. Find. (F o G) (-5)
Marina86 [1]

Answer:

-59

Step-by-step explanation:

f(x) = -2x - 7 and g(x) = -4x + 6.

f(g(x)) =

Replace x in the function f(x) with g(x)

     = -2(-4x+6) -7

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Let x = -5

f(g(-5) = 8(-5) -19

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3 years ago
When x equals 12 , x+3y=21 need help
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Answer:

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Step-by-step explanation:

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