<span>If R = 6 cm, then
circumference = 2</span>πR = 2 × 6 × π = 12π cm
The answer is nine because 2(4)=8 3(2)=6 7=7, os 8-6+7= 2+7 =9
Answer:
(-2,1) (-8,2) (-4,7)
Step-by-step explanation:
just look at the points r's't
Answer:
43
Step-by-step explanation:
The formula for Margin of Error =
Margin of Error = z × standard deviation/√n
Margin of Error= ± 6
z = z score of 95% Confidence Interval is 1.96
s = 20
n = sample size
±6 = 1.96 × 20/√n
Cross Multiply
±6 × √n = 1.96 × 20
±6 × √n = 39.2
Divide both sides by ±7
√n = 39.2/±6
√n = 6.5333333333
Square both sides
n = 6.5333333333²
n= 42.684444444
Rounding up to the nearest integer = 43
Answer:
y = 18
Step-by-step explanation:
The angles 8y - 102 and 2y + 6 are vertical and congruent, thus
8y - 102 = 2y + 6 ( subtract 2y from both sides )
6y - 102 = 6 ( add 102 to both sides )
6y = 108 ( divide both sides by 6 )
y = 18
