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inessss [21]
2 years ago
15

Solve the formula for converting temperature from degrees Celsius to

Mathematics
1 answer:
Harlamova29_29 [7]2 years ago
7 0

Answer:

C. C=9/5F+32

Step-by-step explanation:

divided by 5 then multiply by 9 then add 32

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A company is creating a box without a top from a piece of cardboard, but cutting out square corners with side length x.
Volgvan
Answer: Choice B) The expression (10-2x)(30-2x)x represents the volume of the box

----------------------------------------------------
----------------------------------------------------

The original width is 10 inches. The width reduces to 10-2x inches after we cut off the top two corners of the rectangle. We can think of it as taking 10 and subtracting off two copies of x like so: 10-x-x = 10-2x

Similarly, the length goes from 30 inches to 30-2x inches. This time we're taking off the top and bottom corners (focus on either side it doesn't matter). 

The height of the box is x inches due to this portion being folded up. 

Volume of box = (width)*(length)*(height)
Volume of box = (10-2x)(30-2x)x

Note: the units for the answer are in cubic inches which can be written as "in^3" (inches cubed). 

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3 years ago
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1.
photoshop1234 [79]

it is the second one

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At which root does the graph of f(x) = (x – 5)3(x + 2)2 touch the x-axis?
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Answer:

-2

Step-by-step explanation:

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Answer for 4x+4=2x+8
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Answer:

x=2

Step-by-step explanation:

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Can you answer question 45 and 46?<br> (Show work)
muminat

45. These word problems often seem to be two equations in two unknowns, here <em>h</em> for hits and <em>m</em> for misses.

"After 30 tries" translates into

h + m = 30

+5 for a hit, -10 for a miss, John lost 90 translates to

5h + -10 m = -90

We have

m = 30 - h

5h - 10(30 -h) = -90

5h - 300 + 10h = -90

15h = 210

h = 210/15 = 14

Answer: 14

Check: 5(14)-10(16)=-90, good

46. We have to make the odd assumption the grocer sells for his cost, but let's not beat up the question too hard.

Again, two unknowns, <em>b</em> kilograms of Brazil nuts and <em>c</em> kilograms of cashews.

<em>... sold 12 kg of the mixture ...</em>

b + c = 12

<em>... cashews $8/kg and Brazil nuts $10/kg and the results is $8.50/kg ...</em>

This one's a bit more involved to translate because we have to recognize the total price is the 8.50 per kg times 12 kg.

8c + 10b = 12(8.50) = 102.00

The solving is pretty much just like the last one; we eliminate the unknown we're not asked for.

b = 12 - c

8c + 10(12 - c) = 102

-2c = 102 - 120 = -18

c = 9

Answer: 9

Check: (9(8)+10(3))/12=102/12 = 8.50 good

4 0
3 years ago
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