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icang [17]
2 years ago
7

In step 2, how do you know that 5x? and -12x? are like terms? If you could please help me with 1,2,3 if not just 2

Mathematics
1 answer:
klemol [59]2 years ago
3 0
First we need to define what a like term is:

Like term meaning:

Terms whose variables (such as x or y) with any exponents (such as the 2 in x2) are the same. Examples: 7x and 2x are like terms because they are both "x".

Answer (for question 1):
For step one, you would just have to expand the brackets. The number of times multiplication would be used is 3 times. If you are confused, I attached a diagram in my ‘side notes’ section.

Answer (for question 2):
-5x squared and -12x squared are like terms because they both end in x squared.

Answer (for question 3):
There are no more like-terms.

Hope this helps!
Please give Brainliest!

Side notes:

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A computer has a shape of a rectangular solid. Find the volume of the computer, with dimensions of 4 inches by 4 inches by 5.6 i
Vikki [24]
V=L*W*H
V= 4*4*5.6
V-89.6
4 0
3 years ago
Read 2 more answers
Change this equation, in standard form, to slope-intercept form: 2x + 3y = 18
Mandarinka [93]

Answer:

y = -2/3 + 18

Step-by-step explanation:

2x + 3y = 18       -----    here is the equation...

-2x          - 2x     -----    bring the 2x to the other side

3y = -2x + 18      -----    now you have to divide everything by 3 to get y by itself

y = -2/3 + 18       -----    Done!

6 0
3 years ago
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A rectangle has a length of x and a width of 5x +4 - x2. Find the perimeter of the rectangle when the length is 5 feet.​
gulaghasi [49]

Answer:

18 feet

Step-by-step explanation:

Perimeter = 2(length + width)

=> 2(x + 5x + 4 - x²)

=> 2(6(5) + 4 - (5)²)

=> 2(9)

=> 18 feet

3 0
2 years ago
Please help me! STU is an equilateral triangle. If ST is one less than twice x, SU is 37 less than five times x, and TU is 11 mo
zhuklara [117]

Answer:

x = 12

ST = 23 units

SU = 23 units

TU = 23 units

Step-by-step explanation:

For an equilateral triangle, all the angles are equal. Also, all the sides are equal.

Hence given that the sides ST is one less than twice x, SU is 37 less than five times x, and TU is 11 more than x

ST = 2x - 1

SU = 5x - 37

TU = x + 11

Since ST = SU = TU

2x - 1 = 5x - 37

collect like terms

37 - 1 = 5x - 2x

36 = 3x

Divide both  3

36/3 = x

x = 12

Therefore

ST = 2x - 1 = 2(12) - 1 = 23 units

SU = 5x - 37 = 5(12) - 37 = 23 units

TU = x + 11 = 12 + 11 = 23 units

8 0
3 years ago
What is the graph of the function = f of x equals negative x squared minus 9 x minus 20 all over x plus 4 ?
alisha [4.7K]

Answer:

See below

Step-by-step explanation:

Lets do the long division:-

            - x - 5

          -------------------

x + 4 ( -x^2 - 9x - 20

         -x^2 - 4x     Subtract:-

         ------------

                  -5x - 20

                  -5x - 20

The quotent is -x - 5 with no remainder so the graph will be a straight line with negative slope of  -1, and y-intercept at (0, -5).

4 0
3 years ago
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