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aev [14]
3 years ago
9

What is the value of the expression when x = 5? 3x^2 + 14 - 10x

Mathematics
1 answer:
Andrej [43]3 years ago
7 0

Answer: 39

Step-by-step explanation:

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Evaluate the following expression:<br> 30 = 5(8 – 6 + 1) - (2^2 - 3)^3
grin007 [14]

Answer:

30=15

Step-by-step explanation:

30=40-30+6-4-27

30=10+2-27

40=12-27

30=-15

7 0
3 years ago
Complete the following sentence.<br><br> A radius is________ <br> the diameter.
Ulleksa [173]

Answer:

1/2

Step-by-step explanation:

The radius is 1/2 of the diameter

4 0
3 years ago
Read 2 more answers
The cost function in a computer manufacturing plant is C(x) = 0.28x^2-0.7x+1, where C(x) is the cost per hour in millions of dol
Licemer1 [7]

9514 1404 393

Answer:

  $562,500 per hour

Step-by-step explanation:

The cost will be a minimum where C'(x) = 0.

 C'(x) = 0.56x -0.7 = 0

  x = 0.7/0.56 = 1.25

The cost at that production point is ...

  C(1.25) = (0.28×1.25 -0.7)1.25 +1 = -0.35×1.25 +1 = 0.5625

The minimum production cost is $562,500 per hour for production of 1250 items per hour.

_____

<em>Additional comment</em>

This is different than the minimum cost <em>per item</em>. This level of production gives a per-item cost of $450. The minimum cost per item is $358.30 at a production level of 1890 per hour.

5 0
2 years ago
Simi bought a study table for $ 9000. She sold it at a profit of 20%. How much profit did she make? What is the selling price?
pashok25 [27]

Answer:

cost price of a table=$9000

profit%=20%

Let profit be x

to find profit use formula,

profit%=profit/cost price*100

20%=x/$9000*100

20*$9000=100x

$180000/100=x

$1800=x

Now to find selling prie os a table use formula,

cost price +profit

$9000+$1800

$91800

therefore selling price of a table is $91800

Step-by-step explanation:

Hope this helps u!!

4 0
2 years ago
How can you get 24 by using 1, 1/2, 3 and 6 (one each) with simple mathematical operations?
Tcecarenko [31]

Answer:

(3+1)X 6

Step-by-step explanation:

that means 4x6

7 0
3 years ago
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