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Leona [35]
2 years ago
6

4x^2 - 12x - 3 what would the answer be if x = 7

Mathematics
2 answers:
KonstantinChe [14]2 years ago
6 0

Answer:

4(7)^2-12(7)-3

4×49-84-3

112-3

109

svetoff [14.1K]2 years ago
4 0

Answer: Your correct and final answer should be 109.

Step-by-step explanation:

All you need to do solve this problem is substitute for <em>X </em>using 7. {After you you plug just use PEMDAS and solve from left to right or use a calculator}

4(7)^2 -12(7) -3

4×49 -84 -3

112-3 = 109

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3 years ago
Read 2 more answers
If the fuel tank in Jim's car holds 14 gallons of fuel, define a formula to determine the number of gallons of fuel in Jim's fue
salantis [7]

Considering that the car does 50 miles per gallon, the linear function for the number of gallons of fuel in Jim's fuel tank, n, in terms of the number of miles x that Jim has driven since filling his tank is given by:

y = -0.02x + 14

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem:

  • Jim's car holds 14 gallons of fuel, hence b = 14.
  • Considering it does 50 miles per gallon, and the amount in the tank will decrease, the slope is m = -\frac{1}{50} = -0.02.

Hence, the function is:

y = -0.02x + 14

You can learn more about linear functions at brainly.com/question/25898120

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2 years ago
Qualitative research differs from quantitative research because it a. relies heavily on statistical analysis b. is conducted in
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Answer:

d

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Qualitative research involves mainly exploratory. It is used to gain understanding reasons,opinions and motivations.

Quantitative research is used to collect and generate numerical data used in defining and solving problems.

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3 years ago
Line w passes through the points (-2, 3) and (3, 13) . What<br> is the y-intercept of the line w?
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