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DiKsa [7]
3 years ago
5

Find the area of a circle with radius, r = 40cm. Give your answer rounded to 3 SF

Mathematics
1 answer:
Serjik [45]3 years ago
6 0
Area of circle = pi x r^2
= 22/7 x 40^2
= 5028.57
= 5030cm^2 (3 SF)
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What is the length AB with endpoints A(-1,0) and B(4,-3). Step by step
PolarNik [594]

Answer:

A= [-1,0]

B=[4,-3]

x1 = -1 , x2 = 4 , y1 = 0 and y2 = -3

According to the question , we have to find the distance between AB . And we find distance through the distance formula.

Distance Formula = √[x2-x1]²+[y2-y1]²

                             = √[4-[-1]]²+[-3-0]²

                              =√[4+1]²+[-3]²

                                =  √5²+9

                               = √25+9 = √34

So , distance between the points A and B is root of 34 .

THANKK U !!

<em><u>HOPE IT DOES HELP U ! </u></em>

<em><u>IF SO PLZ MARKK THE BRAINLIEST !!! </u></em>

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8 0
3 years ago
What is 1 7/12 - 2 1/3 =
marissa [1.9K]
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3 years ago
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Vadim26 [7]

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What is the amplitude of y = 4sin3x?
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Solve for b.<br> (b-7)m=r
deff fn [24]

(b-7)m=r

Use the distributive property to multiply b-7 by m.

bm-7m=r

Add 7m to both sides.

bm=r+7m

The equation is in standard form.

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mb/m = 7m+r/m

Dividing by m undoes the multiplication by m.

b= 7m+r/m

Divide r+7m by m.

b= r/m+7

3 0
3 years ago
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