Answer:
a. 215.6 in^3
b. 1.51 lb
Step-by-step explanation:
The area of each hand grip hole is that of a circle of radius 0.6 in together with a rectangle 2 in long and 1.2 in wide. So, that area is ...
π·(0.6 in)^2 + (2 in)(1.2 in) = (0.36π +2.4) in^2
The area of the kickboard before the hand grip holes are put in is that of a semicircle of radius 5.5 in together with a rectangle 12 in long and 11 in wide. So, that area is ...
(1/2)·π·(5.5 in)^2 + (12 in)(11 in) = (15.125π +132) in^2
Taking the hand grip holes out, the top area of the board is ...
((15.125π +132) -2(0.36π +2.4)) in^2
= (14.405π + 127.2) in^2
___
a. The volume is the product of the area and the thickness, so is ...
((14.405π +127.2) in^2)·(1.25 in) ≈ 215.568 in^3
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b. The weight of the kickboard is the product of its volume and its density:
(215.568 in^3)(0.007 lb/in^3) ≈ 1.509 lb
Answer:
7 ± 2 = x
Step-by-step explanation:
± means plus or minus
Sorry but that's an unclear question, can you double check to see if you included everything, and also check to see the possible answers?
Adding the tax?
to add taxes it requires only two steps:
1) multiply the price by the tax as a Decimal (tax must be in decimal form)
2) add what you get after multiplying to the original price
So..
1) 49.95(.05) = 2.497
2) 49.95+ 2.497 = 52.447 round to 52.45
So the whole price is $52.45
**you can also round the 49.95 to 50 before doing the math to make it easier**
Answer:
78 deg
Step-by-step explanation:
