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3 years ago

13

The area of a circle is given by πr2, where r is the radius of the circle. If we use rounding to the nearest whole number, what

is a reasonable estimate of the area of a circle with a radius of 4.89 cm?

1 answer:

Makovka662 [10]3 years ago

4 0

Answer:

75cm^2

Step-by-step explanation:

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Sedbober [7]

Answer:

15 people voted yes and 3 people voted no.

Step-by-step explanation:

Given that:

Ratio of yes to no = 5 : 1

Total number of board members who voted = 18

Let,

x be the number of times.

5x+x = 18

6x = 18

Dividing both sides by 6

$\frac{6x}{6}=\frac{18}{6}\\x=3$

People who voted yes = 5(3) = 15

People who voted no = 3

Hence,

15 people voted yes and 3 people voted no.

6 0

2 years ago

The area of a triangle is 528cm2. The length of its base is 33cm. Calculate the perpendicular height of the triangle

IRISSAK [1]

A = bh/2
A = 33 x h / 2
528 = 33h / 2
33h = 1056
h = 32cm

4 0

2 years ago

Read 2 more answers

In January the students in a class red 72 books in February they read 56 books what is the approximate percentage decrease in th

snow_lady [41]

Answer: -12.5%

72 + 56 = 128

72 x / 128 x 100 = 56.25

56 / 128 x 100 = 43.75

43.75 - 56.25 = - 12.5

5 0

2 years ago

Jimmy, Joe and sally are racing their cars. Jimmy and Joe have completed the same number of laps- six fewer laps than Sally. If

shusha [124]

X = the number of laps Joe has ran.
x + x + x + 6 = 222
3x = 216
x = 72
Jimmy ran 72 laps.
Joe ran 72 laps.
Sally ran 78 laps.

3 0

2 years ago

I want the answer for this question and how you got it please please!

Olin [163]

Answer:

alternate interior angle tq

8 0

2 years ago