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Mathematics

1 answer:

Dmitriy789 [7]3 years ago

3 0

Answer:

g(x)= $(3x)^{2}$

Step-by-step explanation:

In this graph g(x) will be equal to g(x)= $(3x)^{2}$ . Multiplying a squared variable will close the parabola together, but multiplying the variable itself and then calculating the square will exponentially close the parabola. Without the parenthesis x would be substituted for 1, 1 squared is 1 and multiplied by 3 would be 3. Therefore, giving you a coordinate of (1,3). With parenthesis that would be 3 times greater which would give you a coordinate of (1,9) as can be seen in the graph attached below.

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How much do 15 DVDs cost at the store with the lowest unit price?

stepan [7]

Answer:

Total cost= $141.75

Step-by-step explanation:

Giving the following information:

Bernie's Bargains 6 DVDs for $56.70

Greg's Giveaways 10 DVDs for $99.70

Stan's Steals 8 DVDs for $79.68

First, we need to determine the unitary price of each and choose the lowest one:

Bernie= 56.7/6= $9.45

Greg= 99.7/10= $9.7

Stan= 79.68/8= $9.96

The lowest price is $9.45.

Now, the total cost of 15 DVDs:

Total cost= 9.45*15

Total cost= $141.75

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3 years ago

What is the diameter of the cirlce if the radius is 7

Liono4ka [1.6K]

Answer:

Step-by-step explanation:

The diameter of a circle is twice its radius

d=2r

Substitute 7 in for r

d=2*7

d=14

So, the diameter is 14