1) 4
2) 3520
3) 3.8
4) 84
5) 15840
6) 9
7) 2
8) 24
9) 1.25
Answer:
442.5 feet^2
Step-by-step explanation:
So this figure is an octagonal prism.
First off we need to find the area of the two octagons.
The formula for the area is 2(1+ to the square root of 2)a^2.
The a is one side value and in this case it is 4 so plug that in and you get 77.25 feet^2.
The same steps apply for the bottom octagon but we don’t have to do that because it is the same as the top one.
So adding up the two octagons is 154.5 feet^2.
Now time for the rectangles.
In total there are 8 rectangles and a really easy way to do this is finding the area of one rectangle and multiplying that by 8.
So the length is 9 and the width is 4 and when you multiply that together you get 36.
Then multiply 36 by 8 and you will get 288 feet^2.
So when you add up 288 and 154.5 you will get 442.5 feet^2 as your final answer.
The range for boys is 60 as for girls the range is 80. The median for boys is 90 and for girl 110.
Answer:
B is all about addition and multiplication
Answer:
+/- 0.01 mm
+/- 0.02 mm
Step-by-step explanation:
. The error of a quantity directly measured is the uncertainty of the tool used for measuring. So error for diameter is 0.01 mm.
. The error of a quantity obtained multiplying/dividing a measure by a constant is calculated multiplying/dividing the measure uncertainity by the same constant. Radius is calculated as r=2*d, so we calculate
multiplying the diameter uncertainty by 2 (
).