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Elis [28]
2 years ago
7

Please look at the slope and write the equation for each problem...

Mathematics
1 answer:
Alenkinab [10]2 years ago
3 0

Answer:

7. y-1=4(x-2)

y-1=4x-8

y=4x-7

8. y-2=6(x--7)

y-2=6x+42

y=6x+44

11. y-3=2(x-1)

y-3=2x-2

y=2x+1

12. y-4=-1(x-1)

y-4=-x+1

y=-x+5

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The temperature falls from 0 degrees to Negative 12 and one-fourth degrees in 3 and one-half hours. Which expression finds the c
ANEK [815]

Answer:

The expression used to find the change in temperature per hour is Algebraic expression

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

Step-by-step explanation:

A temperature falls from 0 to  - 12\dfrac{1}{4}     in     3\dfrac{1}{2} \ hours

Which expression finds the change in temperature per hour.

From the above given information;

The initial temperature is 0

The final temperature is  - 12\dfrac{1}{4}  

The change in temperature is \Delta T = T_2  -  T_1

\Delta  T = -12\dfrac{1}{4} -0

\Delta T = -12.25

Thus;

-12.25 ° = 3.5 hours

To find the change in x°   per hour; we have;

x°            = 1 hour

The expression used to find the change in temperature per hour is Algebraic expression

From above if we cross multiply ; we have;

(- 12.25° × 1 hour) = (x° × 3.5 hour)

Divide both sides by 3.5 hours; we have:

\dfrac{-12.25^0*1 }{3.5}=\dfrac{ x^0 *3.5}{3.5}

x° =  - 3.5

x° = - 3\dfrac{1}{2}

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

8 0
3 years ago
Your friend asks you to help him with his snow shoveling business and will pay you 3 pennies for the first job. You agree to hel
ratelena [41]

Total = 3^x, where x is the number of jobs worked.

Let x = 7th job:

Total = 3^7 = 2187 pennies. = $21.87

8 0
3 years ago
Read 2 more answers
Plsss hurry!!!! i rlly need help
Lostsunrise [7]

Answer:

41 21/25

Step-by-step explanation:

38 1/25 + 3 4/5 = 41 21/25

3 0
2 years ago
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W = 13, x = 9, y = 1.9, z = 0.5<br><br><br> x2 + 4
prisoha [69]

Answer:

17 is the answer

Step-by-step explanation:

6 0
3 years ago
What is 2 and 3/4 divided by 1/4
Tanya [424]
2 3/4 divided by 1/4
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2 3/4 multiplied by 4/1

which is (2+3/4)*4 = 2*4 + 3/4*4 = 8+3 =<em>11</em>
3 0
3 years ago
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