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Anna007 [38]
2 years ago
15

Find x (steps pls) | x - 7| = 2 (i dunt understand the | in the questions)

Mathematics
1 answer:
kirill [66]2 years ago
3 0

these two bars |  | mean <u>absolute value</u>

here's how to find x

| x - 7| = 2

first apply the absolute rule

x - 7 = 2                 x - 7 = -2

in both equations add 7 on both sides

x - 7 + 7 = 2 + 7       x - 7 + 7 = -2 + 7

then simplify the expressions

x = 9                         x = 5

now combine these two solutions to get your answer

x = 9 or x = 5

hopefully my explanation helps

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What are you asking?
6 0
3 years ago
Simplify the expression: (7 times 18 plus 45) divided by 6
neonofarm [45]

Answer:

28.5  PLEASE GIVE ME BRAINLIEST

Step-by-step explanation:

(7 x 18 + 45) ÷ 6

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8 0
2 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
Using the numbers 3, 2, and 4, which of these problems would have a solution of 4?
Alexeev081 [22]
Pemdas

ok if we look at the first one
exponents first
2^3=8
2^3=8
we have
4*8/8
4*8=32
32/8=4
das is answer


the first one is the answer
7 0
3 years ago
the volleyball team sold 16 items on first day of a bake sale, 28 items second day, and 12 items on the last day there were 4 it
Gelneren [198K]

Add all the item together:

16 + 28 + 12 + 4

=60 total items

5 0
3 years ago
Read 2 more answers
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