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Aleksandr-060686 [28]
3 years ago
10

When given an algebraic expression involving subtraction, why is it best to rewrite the expression using addition before identif

ying the terms?
Mathematics
1 answer:
yarga [219]3 years ago
8 0
Since it doesn't mention multiplication, no. What would be the point of rewriting an expression from 3-2 to 3+(-2)?
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Can you please help me please ​
lianna [129]
On the y said it would be -2
7 0
3 years ago
The length of a rectangle is three times it’s width. The area of the rectangle is 48 square centimeters. Find the measures of th
denis-greek [22]
---------------------------------------------------------------------------------
Define length and width
---------------------------------------------------------------------------------
Let the width be x
Width = x
Length = 3x

---------------------------------------------------------------------------------
Form equation and solve for x
---------------------------------------------------------------------------------
x(3x) = 48
3x² = 48
x² = 48 ÷ 3
x² = 16
x = √16
x = 4

---------------------------------------------------------------------------------
Find length and width
---------------------------------------------------------------------------------
Width = x = 4
Length = 3x = 3(4) = 12

---------------------------------------------------------------------------------
Answer: Width = 4cm, Length = 12cm
---------------------------------------------------------------------------------
7 0
3 years ago
Plz help me with this
Marrrta [24]

Answer:  c) 3

<u>Step-by-step explanation:</u>

Plug in y = -9 and the given x-value to see if it makes a true statement.

a) -4.5 falls in the piecewise function x < -3  --> y = -x

y = -x

-9 = -(-4.5)

-9 = 4.5    FALSE

b) -3 falls in the piecewise function -3 ≤ x ≤ -2  --> y = 2x

y = 2x

-9 = 2(-3)

-9 = -6    FALSE

c) 3 falls in the piecewise function x > -2 --> y = -x²

y = -x²

-9 = -(-3)²

-9 = -9   TRUE

d) 9 falls in the piecewise function x > -2 --> y = -x²

y = -x²

-9 = -(9)²

-9 = -81   FALSE

4 0
3 years ago
Use the equation e^x+e^-x/e^x-e^-x=t tosolve for x
lana66690 [7]

Answer:

Solve the rational equation by combining expressions and isolating the variable  

<h2>x = ln ( t − √ t ^2 + 4  )/2</h2><h2>x = ln ( t +√ t ^2 + 4  )/2</h2>

4 0
3 years ago
Read 2 more answers
Perform the indicated operation.<br> 6/8 - 3/8
Maru [420]

Answer:

3/8

Step-by-step explanation:

(3/8) Since they have the same denominator, you can subtract the second numerator from the first so 6 minus 3 is 3. So 3/8

3 0
3 years ago
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