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svetlana [45]
3 years ago
12

Calculate the area of a sector with radius 13m and angle 93​

Mathematics
1 answer:
pashok25 [27]3 years ago
5 0

Answer:

137.16

Step-by-step explanation:

we have a formular of the area of a sector:

S= pi*(its angle)/360*R^2

so apply to it

S= pi*(93/360)*13^2=137.16

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Excursion boat on the river takes 2 1/2 hours to make the trip to a point 12 miles upstream and to return if the rate at which t
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Answer:

Let the current speed be "c";

Then the boat speed in still wate is "5c":

-----------------------

Upstream speed:

distance = 12 miles ; rate = 5c-c = 4c mph ; time = 12/4c = 3/c hrs

---------------------------

Downstream speed:

distance = 12 miles ; rate = 5c+c = 6c mph ; time = 12/6c = 2/c hrs

Step-by-step explanation:

Equation:

time + time = 2 1/2 hrs

3/c + 2/c = 5/2

Multiply thru by 2c to get:

6 + 4 = 5c

c = 2 mph (speed of the current)

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2 years ago
If a rectangle A has sides are three times the length of those rectangle B, how do the areas of the two rectangles compare?
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Answer:

The area of A is nine times the area of B.

Step-by-step explanation:

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2 years ago
Divide Whole Numbers and Unit Fractions Which is the quotient of 1/4 ÷ 4 ? Use a number line to help. A number line shows zero,
sleet_krkn [62]
1 witch is C as the answer
3 0
3 years ago
Read 2 more answers
Any help would be appreciated. (Check the picture)
White raven [17]

the answer would be 0.800375 but when you round it to the nearest tenth it would be 0.8

4 0
2 years ago
Write the equation of the line that passes. Throught the point (-2,1)and (0,8)put your aswer in fully reduce point slope form un
Soloha48 [4]

Answer:

Step-by-step explanation:

first, we need to find the slope

slope = (y2 - y1) / (x2 - x1)

(-2,1)...x1 = -2 and y1 = 1

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now sub

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point slope form : y - y1 = m(x - x1)

using point (-2,1)....x1 = -2 and y1 = 1

slope(m) = 7/2

now sub

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y - y1 = m(x - x1)

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slope(m) = 7/2

now sub

y - 8 = 7/2(x - 0) <===== another possible answer

6 0
3 years ago
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