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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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Taylor and Nora go to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks
fgiga [73]

Answer:

The system if equation that can be used to derive this are

6x + 4y = 69 AND

12x + y = 96

The price of a drink is $7.5

Step-by-step explanation:

The question here says that Taylor and Nora went to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks and 4 bags of popcorn Nora spends a total of $96.00 on 12 drinks and bag of popcorn.And we are now told to write a system of equations that can be used to find the price of one drink and the price of one bag of popcorn. Using these equations,we should determine and state the price of a drink, to the nearest cent .

Now, Let's assume that the price of a drink is "X" and that of a bag of popcorn to be Y

The first person made a purchase which led to the equation

6x + 4y = 69______ equation 1

And the second person also made a purchase that lead to the equation

12x + y = 96_____ equation 2

We make y the subject of the formula in equation 2 and apply it in 1

Y = 96 - 12x

Now apply the above in equation 1

6x + 4y = 69

6x + 4(96 - 12x)= 69

6x + 384 - 48x = 69

42x = 384 - 69

X = 315/42

X = 7.5

Substitute x= 7.5 in equation 2

12x + y = 96

12(7.5) + y = 96

90 + y = 96

Y = 6

Therefore, the price of a drink is $7.5

4 0
3 years ago
Read 2 more answers
Write a equivalent expression for 12a+60
viva [34]

Answer: 12(a+5)

Step-by-step explanation: factor out 12 from the expression

ANSWER 12(a+5)

8 0
3 years ago
Factorise 3c^2-c<br><br><br> Please help me quick
Dafna11 [192]

Answer:

c(3c - 1)

Step-by-step explanation:

3c² - c

Common factor = c

Factored:

c(3c - 1)

5 0
3 years ago
Dividing, -please please please help?
harkovskaia [24]
B should be the answer Hope this helps.
5 0
3 years ago
What is the percent saved on a pair of sun glasses with a regular price of $15.95 which are on sale for $13.56?
icang [17]

Answer:

15%

Step-by-step explanation:

15% of 15.95 is 2.39, which if we subtract from 15.95 we get 13.56

Could I please have Brainliest? Hope this helps! :)

8 0
2 years ago
Read 2 more answers
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