Answer:
for 1 I am guessing D and for 2 I am guessing B.
Answer:
μ−2σ = 1,089.26
μ+2σ = 1,097.62
Step-by-step explanation:
The standard deviation of a sample of size 'n' and proportion 'p' is:
If n=1139 and p =0.96, the standard deviation is:
The minimum and maximum usual values are:
Peter waled 8900 feet. How many miles is it?
Well, it's surely at least one mile! 8900 is bigger than 5280. And how much more than one mile? let's subtract 5280 from 8900:
8900-5280=3620.
now, this is less than another mile: so it's more than 1 but less than 2 miles: only options 3) and 4) are possible.
so the exact answer is 1.685 and an approximation is 1.7 (because from digit 5 up we round up: 1.64 would be rounded down to 1.6)- the correct answer is 4)!!!
how much is 3600 feet?
it's
The surface area is 188.4 m²
1.) First find the area of the circle.
A = πr²
A = 3.14 (3)²
A = 3.14 (9)
A = 28.26 m²
2.) Find the area of the other circle. We need to multiply the radius (3 m) by 2 to solve for the circumference.
3 * 2 = 6 m
3.) Now solve for the circumference of the second circle.
C = πd
C = 3.14 (6)
C = 18.84 m
4.) Find the area of the rectangle. The net of a cylinder includes two circles and a rectangle.
(The circumference that was solved was for us find the area of the rectangle. We only had 7 m for one of the dimensions of the rectangle.)
Now we have 18.84 m as the length of the rectangle and 7 m as the width.
A = lw
A = 18.84 (length) * 7 (width)
A = 131.88 m²
5.) Add the area of the circle two times with the area of the rectangle.
28.26 + 28.26 + 131.88 = 188.4 m²
I hope this helps. Im not good at explaining things, especially about math :’)
Answer:
y=3x-9
Step-by-step explanation:
put into slope formula y2-y1/x2-x1 and then after finding the slope you put on the points into the equation y=3x+b and you find the b giving you the equation