Answer:
4π cm
step by step explanations:
π is defined as the ratio of a circle's circumference C to its diameter d. So
C=πd=4π cm
Answer:
94
Step-by-step explanation:
Since the circle equals to 142 degrees you have to subtract the already given umber (48) by the total amount and it'll give you the missing angle which is 94.
(18 * 2)*5 = 18*2x
36 * 5 = 18 * 2x
180 = 18 * 2x
2x = 180 : 18
2x = 10
x = 10 : 2
x = 5
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(18 * 2)*5 = 18* 10
180 = 180
X + y = 51
x - y =15
2x = 66
x = 33
33 + y = 51
y = 18
Answer:
1. x=2 2. x=23
Step-by-step explanation:
1: 7(x+3) = 39-2x
7x+21 = 39-2x
9x=18; x=2
2. 2x-5 = 1/2(3x-13)
2x-5 = 1.5x-13/2
0.5x=11.5; x=23