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bogdanovich [222]
3 years ago
13

The object below is made of solid plastic. It is a cylinder with an indentation at the top in the shape of a cone. What is the v

olume of the object (in cubic inches)? *
Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

97.6 cm³

Step-by-step explanation:

Volume of plastic object :

Volume of cylinder - volume of cone

From. The diagram. :

Radius, r = diameter /2 = 4/2

Volume of cylinder = pi*r²h

V = 22/7 * 2² * 8 = 100.53096 cm³

Volume of cone = 1/3*pi*r²h

V = 1/3 * 22/7 * 2² * 8

V = 2.9321531 cm³

(100.53096 - 2.9321531) cm³

= 97.598 cm³

= 97.6 cm³

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How long will each person take to run a total of 50 miles at the given rates?
forsale [732]
Problema Solution

Terrance and Jesse are training for a long-distance race. Terrance trains at a rate of 6 miles every half hour, and Jesse trains at a rate of 2 miles every 15 minutes.

How long will each person take to run a total of 50 miles at the given rates?

Answer provided by our tutors

d = 50 mi the distance
t1 = the time of Terrance
t2 = the time of Jesse
Terrance trains at a rate of 6 miles every half hour thus his rate is:
v1 = 6/0.5 = 12 mph
Jesse trains at a rate of 2 miles every 15 minutes thus his rate is:
v2 = 2/(15/60) = 8 mph
since speed = distance/time follows time = distance/speed:
t1 = d/v1
t1 = 50/12
t1 = 4 1/6 hr
t1 = 4 hr 10 min
t2 = d/v2
t2 = 50/8
t2 = 6 1/4 hr
t2 = 6 hr 15 min
Terrance will run 4 hours and 10 minutes.
Jesse will run 6 hours and 15 minutes.

6 0
3 years ago
2x + 8 = -4 solve for c<br> Show work please
andrew-mc [135]

Answer: x=-6

Step-by-step explanation:

Given

2x + 8 = -4

Subtract 8 on both sides

2x + 8 - 8 = -4 - 8

2x = -12

Divide 2 on both sides

2x / 2 = -12 / 2

x = -6

NOTE: I assume the questions "solve for c" actually means "solve for x"

Hope this helps!! :)

Please let me know if you have any questions

7 0
2 years ago
Need help with this problem, please. The sum of three numbers is -3. The last number is three times the first. The last number i
oee [108]

Answer:

The three numbers are -1 6/7, -5 4/7, and 5 3/7

Step-by-step explanation:

The three numbers can be represented as...

x, 3x+11, and 3x

x+3x+3x+11=-2

7x+11=-2

7x=-13

x= - 1 6/7

3x= -5 4/7

3x+11= 5 3/7

4 0
3 years ago
Read 2 more answers
How many times greater is the value of the 4 in 64781 than the value of the 2 in 25409
HACTEHA [7]

64,781 --- 4,000

25,409 --- 400

4,000÷400=10

7 0
3 years ago
If (a+7,b+3)=(0,7)find a and b​
Lerok [7]
A+7=0
A+7-7=0-7
A=-7

B+3=7
B+3-3=7-3
B=4
3 0
3 years ago
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