This is very simple. So you use two formulas:
Rectangle: Length • Width
Semicircle: Area = 
With that, you do 0.8 ÷ 2 = 0.4 because we will be using radius. When solved, you get 0.2512... But for this problem, I will be rounding everything to the nearest hundredths.
Area of semicircle: ≈ 0.25
Now we solve for the rectangle. That is very easy. Just multiply 0.75 • 0.8 and you get 0.6
For this problem, I'm not sure why they make you round to the nearest centimeter, but if you do, you get 1 cm. Otherwise,
Round to nearest tenth: 0.9
Round to nearest hundredths: 0.85
Yes she is correct just do the proper calculations
Answer:
Step-by-step explanation:
Given the decimal value 588.55
The ones digit value is 8
The tens digits value is 80
Taking the ratio
The ones digits/the tens digits = 8/80
The ones digits/the tens digits = 1/10
The ones digits = 1/10 * the tens digits '
Hence the value of the ones digit is 1/10 of the value of the tens digit.
Option C is correct
So the correct answer is 2(x^ -11x+25) then
Standard deviation= σ= 0.1
Confidence interval= 95%= 0.95
Significance level=α= 1-0.95= 0.05
α/2 = 0.025
At α/2 z( α/2 ) =1.960 [from statistic table]
Now,
the sample size at error of 0.02 is
0.02=z( α/2 )σ/√n
0.02=(1.960)*(0.1)/√n
5/49 = 1/√n
√n=49/5
n=96.04
n should be 96 or greater
