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frosja888 [35]
4 years ago
9

Insert parentheses in expression 2 so that it has a value of 4. Then show why your expression has a value of 4.

Mathematics
1 answer:
Natasha_Volkova [10]4 years ago
8 0
(2^3 +4) = 12

9-6=3

(2^3 +4) /(9-6)
12 /3
4
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1. (2x+5)+(3x-2)= <br> 2. (3x-2)-(2x+5)=<br> 3. (2x+5)-(3x-2=
DIA [1.3K]

Answer:

  1. 5x+3
  2. x -7
  3. -x +7

Step-by-step explanation:

Combine like terms. The associative and commutative properties of addition apply, as does the distributive property.

__

1. (2x+5)+(3x-2) = (2x +3x) +(5 -2) = 5x +3

__

2. (3x-2)-(2x+5) = 3x -2 -2x -5 = (3x -2x) +(-2 -5) = x -7

__

3. (2x+5)-(3x-2) = 2x +5 -3x +2 = (2x -3x) +(5 +2) = -x +7

_____

<em>Additional comment</em>

Note that swapping the order of operands in a subtraction problem (problems 2 and 3) will cause the sign of the result to reverse.

6 0
3 years ago
If 6 books cost 10 dollars, how many books can you buy with 5 dollars?
anyanavicka [17]
Well you know that half of 10 is 5 so what is half of 6 = 3 so you can buy 3 books with 5 dollars
6 0
3 years ago
Read 2 more answers
Write an algebraic expression to represents the verbal expression: the difference between the product of 4 and a number and the
Naily [24]

Answer:

4n-n^2

Step-by-step explanation:

I use 'n' as the unknown value, but you can use any letter you want as the variable.

The product of four and a number would be represented by '4 * n'. The ideal way to write this would be '4n', even though '4 * n' is also correct in value.

The square of the number would be n². Squaring a number is multiplying a number by itself.

The phrase 'difference between...' means subtraction.

Putting it together:

"The difference between the product of 4 and a number and the square of the number" would be:

4n-n^2

Hope this helps.

4 0
3 years ago
Which expression is equivalent to (3−22)+5?
Assoli18 [71]

Answer:

b 2 to the second -5

Step-by-step explanation:

3 0
3 years ago
One line passes through the points (-6,0) and (-4,6) another line passes through the points (5,-2) and (8,7)
Julli [10]

Answer:

Parallel

Step-by-step explanation:

-y₁ + y₂\-x₁ + x₂ = m

\frac{2 + 7}{ -5 + 8}  =  \frac{9}{3}  = 3

\frac{0 + 6}{6 - 4}  =  \frac{6}{2}  = 3

Both <em>rate</em><em> </em><em>of</em><em> </em><em>changes</em><em> </em>[<em>slopes</em>] result in <em>three</em>, therefore both lines are parallel.

I am joyous to assist you anytime.

6 0
3 years ago
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