1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleonysh [2.5K]
3 years ago
6

A foam kickboard to use for swimming has two identical hand grips.

Mathematics
1 answer:
arsen [322]3 years ago
4 0

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

__

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

You might be interested in
One of the characteristics of legal English is _____.
LenKa [72]
One of the characteristics of legal English is archaic English words.
Usually, in legal texts you would use words that aren't normally used in everyday speech, in order to show the importance and formality of that document. 
6 0
3 years ago
Read 2 more answers
2 and 1/4 yard is how many inches
BartSMP [9]
First you need to find out how many inches are in a yard. After that, times that by 2 1/4 or use the improper fraction form 9/4 which I am going to use.

We know there is 36 in = 1yd

36 x 9/4 = 324 / 4
324 / 4 = 81 inches





5 0
3 years ago
Pls help ur girl out with math
Zinaida [17]
135 degrees is your answer
8 0
2 years ago
What is the answer? Please help me out
Veronika [31]
I think it may be 19.5
3 0
3 years ago
Read 2 more answers
Two trains arrived at a station at 2:55 p.m., with one arriving on track a, and the other arriving on track
Sladkaya [172]
In 144 minutes, or at 5:19 pm, the trains will arrive at the same time again.
3 0
3 years ago
Read 2 more answers
Other questions:
  • 220-450÷3 to the 2nd power=​
    11·1 answer
  • Eurostar is a high-speed railway service connecting
    14·1 answer
  • Which statement correctly identifies a local minimum of the graphed function?
    9·1 answer
  • The water level in a reservoir is now 52 meters. If this was 23% increase, what was the initial depth
    13·1 answer
  • When driving the 9 hour trip home, Sharon drove 390 miles on the interstate and 150 miles on country roads. Her speed on the int
    14·1 answer
  • Suppose you start with a full tank of gas (18 gallons) in your truck. After driving 6 hours, you now have 8 gallons left. If x i
    8·1 answer
  • The volume of a cone is 3,532.5 cm. The radius and height of the cone are equal. What is the radius of the cone?
    10·1 answer
  • What is 1/6 times 1/2?
    14·2 answers
  • If a car can travel 78 miles using 3 gallons of gas, what is the unit rate?
    15·2 answers
  • If
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!