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Elenna [48]
3 years ago
5

Please help me!! its sooo hard!!!!

Mathematics
2 answers:
Agata [3.3K]3 years ago
6 0
To find volume, you multiply length * width * height.

In this case, break up the figure into pieces you know, since as a base rectangle and a top rectangle.

base rectangle: 350 =  10 ( length ) * 7 ( width ) * 5 ( height )

upper/top rectangle: 126 = 3 ( l ) * 7 ( w ) * 6 ( h )

350 + 126 = your answer

den301095 [7]3 years ago
3 0
Add the length width and height all together
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Suppose that the dollar cost of producing x radios is c(x) = 400 + 20x - 0.2x 2. Find the marginal cost when 30 radios are produ
My name is Ann [436]
C(x) = 400 + 20x - 0.2x²

c(30) = 400 + 20(30) - 0.2(30)²

= 400 + 600 - 0.2(900)
= 1000 - 180
= 820

It costs $820 when 30 radios are produced. 

Marginal cost is how much it would cost to make one MORE of the same product so now we find how much it costs to produce 31 radios and compare the two. 

c(31) = 400 + 20(31) - 0.2(31)²

= 400 + 620 - 0.2(961)
= 1020 - 192.2
= 827.8 or ≈828.

Now we find the difference which means we subtract the two. 

828 - 820 = 8. 

Your marginal cost is $8. 

To compare we can also do 29 radios. 

c(29) = 400 + 20(29) - 0.2(29)² = 811.8 or ≈812

820 - 812 = 8. 
7 0
3 years ago
Evaluate the expression when b=2<br> 12-b
exis [7]

Answer:

10 \huge\checkmark

Step-by-step explanation:

Hi there, hope you are having a nice day!

All we should do is plug in the value of b:

12-2

10 (Answer)

Hope you find it helpful.

Feel free to ask if you have any questions.

\bf{-MistySparkles^**^*

7 0
2 years ago
Read 2 more answers
christina lost 1/10 of her marbles when she was on the playground. She lost 8/10 of her marbles while walking home. How many mar
Kisachek [45]

Answer:

9/10

Step-by-step explanation:

She lost 1/10 and 8/10 marbles. When you add them up you get 9/10. There for, Christina lost 9/10 marbles altogether.

Hope this helps :)

3 0
3 years ago
Can someone help me on this math problem ?
faltersainse [42]

Answer:

4/3

Step-by-step explanation:

Given two points, we can find the slope by using

m = (y2-y1)/(x2-x1)

    = (20 - -16)/(7 - -20)

    = (20+16)/(7+20)

    = 36/27

   =4/3

8 0
3 years ago
A free falling object increases speed by a little over 22 miles per hour each second. The arithmetic sequence 22,44,66..., repre
dimulka [17.4K]

Answer:

176 mph after 8 seconds

5 0
3 years ago
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