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lesya692 [45]
3 years ago
7

Kayla and her best friend Christina go shopping. The function p(t) = 2x4 + 6x3 - 3x2 + 24 represents how much money each girl sp

ent based on the
number of hours they were shopping. If Kayla and Christina each go shopping for 2 hours, how much money did they spend together?
$44
$88
$92
$184
Mathematics
2 answers:
LiRa [457]3 years ago
6 0

Answer:

Option 4 - $184

Step-by-step explanation:

Given : Kayla and her best friend Christina go shopping. The function p(t) = 2x^4 + 6x^3 - 3x^2 + 24 represents how much money each girl spent based on the  number of hours they were shopping. If Kayla and Christina each go shopping for 2 hours.

To find : How much money did they spend together?

Solution :

The function p(t) = 2x^4 + 6x^3 - 3x^2 + 24.

If Kayla and Christina each go shopping for 2 hours i.e. x=2.

p(2) = 2(2)^4 + 6(2)^3 - 3(2)^2 + 24

p(2) = 32 + 48-12 + 24

p(2) = 92

The total amount of money Kayla and her best friend Cristina spent together is

Total=\$92+\$92\\\\Total=\$184

Therefore, they spend together is $184.

So, option 4 is correct.

TiliK225 [7]3 years ago
5 0

Answer: LAST OPTION.

Step-by-step explanation:

You have the following function that  represents the amount of money each girl spent:

p(t) = 2x^4 + 6x^3 - 3x^2 + 24

Where "t" is the  number of hours they were shopping.

 

You know that each girl went shopping for 2 hours.

Then, you can substitute t=2 into the given function:

p(2) = 2(2)^4 + 6(2)^3 - 3(2)^2 + 24

Evaluating, you get that the amount of money spent by one of these girls in 2 hours, is:

p(2) = 92

Therefore, the total amount of money Kayla and her best friend Cristina spent together is:

Total=\$92+\$92\\\\Total=\$184

This matches with the last option.

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