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Alex
2 years ago
7

Help!!! Please!!!!!!

Mathematics
1 answer:
maw [93]2 years ago
7 0
What are you supposed to do.
You might be interested in
Can you very be kind and answer
Lera25 [3.4K]

area of a circle is PI x r^2

2 = d/2 = 5.4/2 = 2.7 cm

 using 3.14 for PI

3.14 x 2.7^2 = 22.89 square inches

360 degree in a circle, shaded area is 180 degree, which is 50%

 so 22.89 x .5 = 11.45 cm^2

4 0
3 years ago
HELP help HELP help HELP help HELP help HELP help HELP help HELP help
Morgarella [4.7K]

\text{mass of freight train} = 9.98 \times  {10}^{6} kg

\text{mass of aircraft carrier} = 7.3 \times  {10}^{7}  \: kg

\text{difference of masses of aircraft and train: } \\  \\ 7.3 \times  {10}^{7}  - 9.98 \times  {10}^{6}  \\  \\  = 73 \times  {10}^{6}  - 9.98 \times  {10}^{6}

= (73 - 9.98 )\times  {10}^{6}  \\  \\  = 63.02 \times  {10}^{6}  \\  \\  = 6.302 \times  {10}^{6}  \: kg \\  \\  \approx 6.3 \times  {10}^{6}  \: kg

Approximately, aircraft carrier is 6.3 × 10^6 kg heavier than the freight train.
7 0
2 years ago
Please help me with this homework
beks73 [17]
Absolute value can never be negative
Absolute value: | |

| 1 | ( ) 5

1 ( ) 5
1 < 5

Hope this helped:)
6 0
2 years ago
Read 2 more answers
What is the surface area of a cone with a diameter of 28 cm. and height 22 cm in terms of Ï.
Svetlanka [38]

To find the surface area of a cone, use this formula.

pi (r) (r + [square root of h^2 plus r^2] )        substitute


h = height = 22                  r = radius = 28/2 = 14      [ ] = sq. root


pi (14) (14 + [ 22^2 + 14^2 ])                        solve exponents

pi (14) (14 + [484 + 196])                             add

pi (14) (14 + [680])                                       solve square root

pi (14) (14 + 2[170])                                     add

pi (14) (40.0768)                                         multiply

pi (561.075)  is about 561.1 rounded to nearest tenth


So the answer is C. 561.1pi cm^2

5 0
3 years ago
john can shovel a certain driveway in 50 minutes if mar can shovel the same driveyway in 20 minutes how long will it take them t
Assoli18 [71]

John and Mar need 14 minutes complete shovel their driveway together, to the nearest minute.

<h3>What is rate of doing work?</h3>

You can use this computation to determine the hourly value of each employee's job, allowing you to more effectively and efficiently plan your staffing needs in the future.

This is crucial because it enables you to determine the ideal workforce size based on your average hourly wage.

According to the question;

by calculating the fraction of unit work that each individual can finish in a given amount of time together work is estimated.

Mary can clear 1/20 of a driveway in a minute, but John can clear 1/50 of it in that time.

The both will do the same job in;

= (1/20) + (1/50)

= (5/100) + (2/100)

= 7/100

They'll be finished when they've cleared 100 percent of the driveway, therefore the equation we must finally solve is:

7x = 100.

x = 100/7

x = 14.28

Therefore, when John and Mar will work together, they will shovel the driveway in 14 minutes (to the nearest minute).

To know more about work rate, here

brainly.com/question/1144815

#SPJ4

4 0
1 year ago
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