Is 3x to the power of 2 a function ?

Mathematics

2 answers:

OleMash [197]3 years ago

4 0

Answer:

Step-by-step explanation:

Because in a function for every one x there is one y.

mrs_skeptik [129]3 years ago

3 0

Answer:

YES.

Step-by-step explanation:

f(x) = 3x^2.

This is a parabola which opens upwards ( roughly U shaped) so it will pass the vertical line test and is a function.

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Susan paid $0.78 per liter for gas while driving across Canada. Find the cost per gallon to the nearest cent.

denis-greek [22]

Answer:

The cost of gas per gallon in Canada is $ 2.95 (Rounding to the nearest cent)

Step-by-step explanation:

Let's solve this question, this way:

1. Let's convert liters to US gallons:

1 US gallon = 3.785412 liters

1 liter = 0. 26417204 gallon

2. Let's calculate the cost per gallon:

1 liter of gas = $ 0.78

3.785412 liters = 0.78 * 3.785412

1 gallon = $ 2.95 (Rounding to the nearest cent)

The cost of gas per gallon in Canada is $ 2.95 (Rounding to the nearest cent)

7 0

3 years ago

Read 2 more answers

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars)

S_A_V [24]

Revenue: R(x) = 100x
Profit: P(x)= 3100 + 9x + 0.1x2 (0 ≤ x ≤ 500)

equalize the two equations
100x=3100 + 9x + 0.1x2

0.1x2-91x+3100=0
using graphic tools
x1=35.447----35
x2=874
the domain is (0 ≤ x ≤ 500)

the value from which there are profits is 35 pairs of cleats

Revenue: R(x) = 100x --------100*35=$3500
Profit: P(x)= 3100 + 9x + 0.1x2 -------3100+9*35+0.1*(35)2=$3537.5
Profit > Revenue up to the amount of 35 pairs of cleats