24/200×100/100 = 12/100 = 12%
Answer:
Step-by-step explanation:
The formula of a surface area of a sphere:
R - radius
We have
Substitute and solve for R:
<em>divide both sides by π</em>
<em>divide both sides by 4</em>
The formula of a volume of a sphere:
Substitute:
Answer: the margin of error is 0.02
Step-by-step explanation:
Confidence interval for population proportion is written as
Sample proportion ± margin of error
If the confidence interval for this population proportion is (0.52, 0.56.), it means that the lower boundary is 0.52 and the upper boundary is 0.56
Let x represent the sample proportion and y represent the margin of error. Therefore,
x - y = 0.52
x + y = 0.56
Subtracting the second equation from the first equation, it becomes
- 2y = - 0.04
y = - 0.04/-2
y = 0.02
Compare Values of 5's:
552, 299 ======> 5, 52,, 299
<u>5 ===> Millions Place</u>
<u>5 ===> Hundred-Thousands</u>
2 ===> Ten-Thousands Place
,
2 =====> Thousands Place
9 ===> Hundreds Place
9 ===> Tens Place
Hope that helps!!! : )
So?
-756*x +x =1 ?
-755 x = 1
x= -1/755
or
what two numbers when multiplied equal -756 but when added together equal 1?
numbers are x and y
x*y= -756
x+y=1
rearrange the 2nd eq
y=1-x
substitute
x(1-x)=-756
distribute
x-x^2=-756
solve for zero
x^2-x-756=0
factor/quadratic equation
