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Nesterboy [21]
3 years ago
6

The temperature in a room is 60°F .A heater is turned on and the heater temperature rises up by 2°F every hour right in equation

that represents the temperature y after the heater has been on for x hours?
Mathematics
1 answer:
olganol [36]3 years ago
6 0

Answer:

y=2x+60

Step-by-step explanation:

Since the starting temperature is 60 degrees, that will be the y intercept. the temperature rises by 2 degrees every one hour, so the slope is 2. y=2x+60.

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5 0
2 years ago
The area of a rectangular wall of a barn is 42 square feet. Its length is 8 feet longer than twice its width. Find the length an
Furkat [3]

Answer:

The answer to your question is: length = 14 ft; width = 3 ft

Step-by-step explanation:

Data

Area = 42 ft²

length = 8 + 2w

w = width = ?

length = ?

Formula

Area = length x width = l x w

Substitution

                     42 = (2w + 8)w

                     42 = 2w² + 8w

                     2w² + 8w - 42 = 0

                                                                  Dividing by 2

                      w² + 4w - 21 = 0                 Factorize

                     (w + 7) (w - 3) = 0

                     w1 = -7                      w2 = 3

     It's not possible to have negative widths

So the answer is w = 3 ft

      length = 2(3) + 8

      length = 6 + 8

      length = 14 ft

               

8 0
3 years ago
Please help me i’ll appreciate it
yanalaym [24]

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Answer:

  (c)  g(x) = 1/3·f(x)

Step-by-step explanation:

You can pick a point, such as the vertex at (2, -3) on f(x) and see which of the transformations gives you a point on the graph of g(x).

You will find that g(x) represents a vertical scaling by a factor of 1/3, so ...

 g(x) = 1/3·f(x)

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The point (2, -3) on f(x) corresponds to the point (2, -1) on g(x).

5 0
3 years ago
What's the solution to the inequality????? 20 points
katrin2010 [14]

Answer:

the answer is A

Step-by-step explanation:

The answer is A

6 0
2 years ago
Read 2 more answers
If h and j are positive, (h+j)2 = 73 and h2 +j2 = 51, what is hj?
kkurt [141]

Answer:

hj = 11

Step-by-step explanation:

  • (h+j)^2=73,\:\: and\:\: h^2+j^2 =51 (Given)

  • (h+j)^2 = h^2+j^2 +2hj

  • \implies 73= 51 +2hj

  • \implies 73- 51 =2hj

  • \implies 22 =2hj

  • \implies hj = \frac{22}{2}

  • \implies hj = 11
3 0
2 years ago
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