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2 years ago

Josie needs to rent a car from SureRide Car Rentals. The cost of renting a car iS a

Mathematics

1 answer:

telo118 [61]2 years ago

5 0

Answer: y = 0.75x + 80

Step-by-step explanation:

let x = 1 mile

y = 0.75x + 80

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3 years ago

What is 3 5\8 + 6 1\2

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3 years ago

The roots of a quadratic equation are (1,0) and (-5,0). What is the axis of symmetry?

leva [86]

Answer:

Step-by-step explanation:

The axis of symmetry lies exactly halfway between the given x = 1 and x = -5.

The axis of symmetry is x = -2.

The 'halfway' value is also the 'average' of 1 and -5: -4/2, or -2.

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3 years ago

The top and bottom margins of a poster are 6 ft and the side margins are each 8 ft. If the area of printed material on the poste

UNO [17]

Answer:

Dimension

Height =29.01

Breadth=38.70

Step-by-step explanation:

Printed area is =386 and margins as specified.

For printed area let height be x and breadth be y.

x*y=386 ⇒ y = $\frac{386}{x}$

Now considering the margins

Height = x+6+6=x+12

Weidth = $\frac{386}{x}$ +8 +8= $\frac{386}{x}$ + 16

Area of poster to be minimised =(x+12)( $\frac{386}{x}$ + 16)

Differentiate above area with respect to x and equate to zero to find extrema.

$\frac{dA}{dx}$ = 16 - $\frac{12*386}{x^{2} }$ =0

x=17.01

Now plug value of x in height and breadth

Height =29.01

Breadth=38.70

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4 years ago