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Leokris [45]
3 years ago
11

If the radius of a circle equals 20 cm find its circumference correct to one decimal place

Mathematics
2 answers:
serg [7]3 years ago
8 0
The answer is 125.7 correct to one decimal place
Brums [2.3K]3 years ago
3 0

Answer:

125.66

Step-by-step explanation:

i don't get the one decimal place part but there your answer

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The width of a rectangle is the length minus 4 units. The area of the rectangle is 12 units. What is the width in units of the r
Genrish500 [490]

Answer:

width = 2 units

Step-by-step explanation:

If the length of a rectangle is (x) units, then that means that the width of a rectangle is x - 4 units.

the area of a rectangle is length * width

so just substitute the values that we have now.

x (length) * (x-4) width = 12 (area of rectangle)

so that gives us

x^2 - 4x =12

subtract 12 from both sides

x^2 - 4x - 12 =0

now factor this equation

x^2 + 2x - 6x -12 = 0

x(x+2) - 6(x+2) = 0

(x-6)(x+2) = 0

x = 6, or x = -2 REMEMBER THAT VALUE OF x = LENGTH, IT CANNOT BE NEGATIVE AS YOU CANT HAVE NEGATIVE VALUE OF A SIDE

length = 6, and width = 6 -4 = 2

8 0
3 years ago
Read 2 more answers
What is solution to this equation 4x=124
kkurt [141]

4x= 124

divide both sides by 4 to get x by itself

4x/4= 124/4

Cross out 4 and 4, divide by 4 and then becomes 1*1*x= x

124/4

12/4= 3

4/4= 1

Answer: x= 31

7 0
3 years ago
PLS HELP THIS IS DUE TODAY
Anastasy [175]

Answer:

Draw a C plane and plot the dots if the coordinates

4 0
3 years ago
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C = 172.7 cm
Anika [276]
I am hoping that the a in c = ad is supposed to be x.

The formula for circumference is c = pi * diameter with 3.14 substituting for pi.

Let’s plug in some values

172.7 = 3.14d

Divide

55 = d

The diameter should be 55 cm.
4 0
3 years ago
Read 2 more answers
I need help guys ok thinks
Serhud [2]
3/9 + 1/2 = 5/6
2 1/3 + 2 1/4 = 4 and 7/12
7 0
3 years ago
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