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vitfil [10]
3 years ago
6

Kerry is comparing the fuel efficiency of two cars, Car A and Car B. Car A lists gas mileage as 32.4 miles per gallon for highwa

y driving. Car B uses 2.6 gallons per 100 miles of highway driving.a. Determine the miles per gallon for Car B.
Mathematics
1 answer:
andrezito [222]3 years ago
6 0
Okay. To find the miles per gallon of B, we have to divide 100 by 2.6. 100/2.6 is 38.4615385 or about 38.5 miles per gallon when rounded to the nearest tenth. Car B goes approx. 38.5 miles per gallon.
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Which of the following functions has a graph that is a line? f(x) = |x| f(x) = x f(x) = x 2
sattari [20]

Answer:

f(x) = x

Step-by-step explanation:

f(x) = |x| will give you V graph

f(x) = x will give you line graph (linear)

f(x) = x² will give you a curve graph

7 0
3 years ago
Need help ASAP!!!!!!
trapecia [35]

Answer:

see explanation

Step-by-step explanation:

x² + 3x + 7 = 5 ( subtract 5 from both sides )

x² + 3x + 2 = 0 ← in standard form

(x + 2)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x ( zero product rule )

x + 2 = 0 → x = - 2

x + 1 = 0 ⇒ x = - 1

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x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )

3x² - 5x - 2 = 0 ← in standard form

(3x + 1)(x - 2) = 0 ← in factored form

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3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - \frac{1}{3}

x - 2 = 0 ⇒ x = 2

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(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify

x² + 6x + 9 + 4x = 0

x² + 10x + 9 = 0 ← in standard form

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Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x + 1 = 0 ⇒ x = - 1

4 0
3 years ago
Find the area of the shaded region.
skelet666 [1.2K]

Answer:

5x12

Step-by-step explanation:

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3 years ago
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larisa [96]

Answer:

x = -1

Step-by-step explanation:

9x + 8 = -1

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9x + 8-8 = -1-8

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5 0
3 years ago
Can anybody figure this question out cause I can't figure it out​.
Kazeer [188]

Answer:

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4 0
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