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xxMikexx [17]
3 years ago
11

My finals are tomorrow and i need to sleep soon, any answer would be appreciated, and i REALLY REALLY need explanations with the

answer

Mathematics
2 answers:
AVprozaik [17]3 years ago
8 0
Hey I commented so you can mark that guy the brainliest I’m glad he was able to help you
elixir [45]3 years ago
4 0

Answer: To find the answer for question 7 we would first need to find the volume of the cylinder as a whole.  To find a cylinders volume all you need to do is input values into this formula V=πr2h.  In our case the volume is 508.94.  Now we would need to subtract out the volume of the cone that was carved out.  To find the volume of a cone use this formula, V=πr2h /3.  The volume of the cone is 113.1.  Now subtract 113.1 from 508.94 to get 395.84 which rounds to 396 in cubed.  This means that B) is your answer.  Now for question #11.  This is quite similar to the other problem but this time it involves adding a cone and cylinders volume together instead of subtracting them.  Follow the same steps as before except add instead of subtract.  The volume of this cylinder is 1017.88.  The volume of the cone on top is 37.7.  Add these two values together to get 1055.58 which is your answer.  As for the last one which is question #4 which asks us to solve for the angle all we would need to do is find out what x is equal to and then input that into the equation given for angle Q and solve!  To solve for x follow these steps.  (11x -5)+(6x+5)+(x)=180  Set the equations for each angle equal to 180 as that is the sum of all angles in all triangles.  Then solve for x.  We get that x = 10.  Now plug in x = 10 into the equation for angle Q. 11(10)-5=105.  This means that angle Q is 105 degrees.

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Sharika can finish the work in 6 days and Palkey can do the same work in 8 days. They both worked together for for 2 days then P
Rufina [12.5K]

Answer:

Sharika needs 2.5 days to finish the remaining work

Step-by-step explanation:

Sharika can do a work in 6 days palkey can do it in 8 days

Then the amount of work sharika can do in 1 day = 1/6

And the amount of work palkey can do in 1 day = 1/8

The amount of work both of them can do together in 1 day = 1/6 + 1/8

= 7/24

The amount of work both of them can do together in 2 day = (2× 7/24)

= 7/12

Since Palkey left the work,the amount of

work remaining for Sharika to do alone = (1 - 7/12 )

= 5/12

The number of days Sharika take to finish the remainig work. = (5/12 ÷ 1/6 )

= 5/2 days

Therefore, Sharika needs 2.5 days to finish the remaining work.

5 0
3 years ago
A rental company charges $15 plus $4 per hour to rent a bicycle. If Margie does not want to spend more than $27 for her rental,
serg [7]
I believe it’s 3 hours
3 0
3 years ago
X + 3 1/2 = 10 What is the value of x?
Evgen [1.6K]

Answer:

X = 6 1/2

Step-by-step explanation:

X is equal to 6 1/2 because, if you subtract 3 1/2 from 10 you will be left with 6 1/2.

3 0
2 years ago
An artificial soccer pitch is 91 meters long and 43 meters wide. If the cost of the pitch is AED 20 per square meter. What is th
Novosadov [1.4K]

The Cost of installing the artificial soccer pitch is $5360

A rectangle is a quadrilateral (has four sides and four angles) in which opposite sides are parallel and equal.

The soccer pitch us rectangle in shape. Hence:

Perimeter of soccer pitch = 2(length + width) = 2(91 + 43) = 268 meters

Cost of installing the pitch = $20 per meter * 268 meters = $5360

The Cost of installing the artificial soccer pitch is $5360

Find out more on perimeter at: brainly.com/question/16596982

6 0
2 years ago
You plan to cut a board into 3 pieces to repair part of a railing. You are going to cut the two ends of the board off into two e
jarptica [38.1K]

Let's assume that the original length of the piece of board is L.

Now you cut two pieces that are 3.4 ft long, so the remaining piece of board is:

L - 3.4ft - 3.4ft = L - 6.8ft long.

Now we know that the remaining must be 2.35 times longer than the pieces of 3.4 ft, then we have the equation:

( L - 6.8ft) = 2.35×3.4ft

solving that for L we get:

L  = 14.79ft

Rounding to the nearest tenth, we get:

L = 14.8ft

You should buy a piece of board that is 14.8 feet long.

If you want to learn more, you can read:

brainly.com/question/22293035

5 0
3 years ago
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