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4vir4ik [10]
3 years ago
12

Evaluate the expression for the given value of the variable(s). Show your work.

Mathematics
1 answer:
ch4aika [34]3 years ago
4 0
I got -50 as my answer
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Kelly buys a sweater for $16.79 and a pair of pants for $28.49. She pays with a $50 bill. How much change should Kelly get back?
andrew11 [14]
16.79+28.49=45.28

50-45.28=4.72

Kelly would get $4.75 back
4 0
3 years ago
Please help! If possible please show your work. Thank you in advance!! :D
Rudiy27

Answer:

  • (-4)³ = -64
  • -64

Step-by-step explanation:

The first step in solving the equation is to cube both sides:

  (∛x)³ = (-4)³ . . . . . = (-4)(-4)(-4) = 16(-4) = -64

  x = -64 . . . . . simplified

__

We're not sure what "checking" is supposed to involve here. Usually, one would check the answer by seeing if a true statement is made when the answer is put into the original equation.

  ∛(-64) = -4 . . . true

Many calculators will not compute √(-64) because they compute roots using logarithms. The log of a negative number is not defined.

So, the way one would check this is to cube both sides, which is how we got the answer in the first place. We expect the same result from doing the same operation again, so it isn't really a check.

6 0
2 years ago
A car travels 150 miles in 2 hours. Which of the following represents a corresponding unit rate? Choose all that apply.
azamat
The answer is C.) 1.25 miles per day
6 0
2 years ago
Please solve all 3<br><br> I need this quick
AnnyKZ [126]

Answer: i have absolutely no idea

Step-by-step explanation:

5 0
2 years ago
I need help on this question please help me?!
FinnZ [79.3K]
The answer is C
-1 , 3
6 0
2 years ago
Read 2 more answers
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