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forsale [732]
3 years ago
10

Determine if there is a proportional linear relationship. Explain your reasoning.

Mathematics
1 answer:
Rzqust [24]3 years ago
5 0

Answer:

Increase of 2°F/h..... Option 4.

Step-by-step explanation:

Here in the table time in hours is the independent variable (x) and temperature in °F is the dependent variable (y).

The initial temperature at x = 0 hour is 52°F and then the temperature increases by 2°F per one hour time spent.

Therefore, the temperature is increasing at a constant rate of 2°F per hour from an initial value of 52°F.

Hence, option 4 is correct.

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ale4655 [162]
For this equation we are factoring. When you do this. You get the answer of:

(-3x²+8x-7)
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Tyler has to savings accounts that his grandparents opened for him . One of the accounts Pay 8% annual interest Where as the oth
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A dog trainer is installing a small rectangular pen using at most 40 feet of fencing for three sides. The fourth side of the pen
likoan [24]

The 40 feet of fencing which covers at least 182 square feet gives the possible lengths of x as x ≥ 13 or x ≤ 7

<h3>How can the area be expressed as an inequality?</h3>

Length of the fencing = 40 feet

Number of sides covered = Three sides

Area of the fencing ≥ 182 square feet

Length of the shorter side of the pen = x

The area is therefore;

  • x × (40 - 2•x) ≥ 182

2•x² - 40•x + 182 ≥ 0

2•(x² - 20•x + 91) ≥ 0

2•(x² - 13•x - 7•x + 91) ≥ 0

2•(x•(x - 13) - 7•(x - 13) ≥ 0

  • 2•(x - 13)•(x - 7) ≥ 0

Which gives;

  • x ≥ 13 or x ≤ 7

The solution to the inequality and the possible lengths of <em>x </em>are;<em> </em>x ≥ 13 or x ≤ 7

Learn more about quadratic inequalities here;

brainly.com/question/10441997

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2 years ago
Jen wants to buy four books: for $10.00, for
Nitella [24]
20 + (0.4 × 15) + 12 + (0.4 × 10) = 20 + 6 + 12 + 4 = 42

20 + 15 + 12 + 10 = 57

57 - 42 = 15

15 ÷ 57 × 100 = 1500 ÷ 57 = 26.3

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6 0
3 years ago
Y = -2x + 1<br><br> 3x - 2y = 5<br><br> Solve the system of equations algebraically. Show your work
Sphinxa [80]

Answer:(1,-1)

Step-by-step explanation:

Y= -2x+1

3x -2(-2x*1)=5

3x+(4x-2)=5

7x-2 =5

+2 = +2

7x=7

x= 1

Solution : (1,-1)

4 0
3 years ago
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