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statuscvo [17]
3 years ago
6

What is the coefficient of the second term in the expression 2n+7m+6​

Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:

the answer is seven.

Step-by-step explanation:

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The combined area of a pair of congruent rectangles can be represented, in square units, by the expression 18y^2-818y 2 −8. The
sveta [45]

Answer:

Perimeter = 12y

Step-by-step explanation:

Given

Area = 18y^2 - 8 -- two rectangles

Required

Determine the perimeter of one of the rectangles

First, calculate the area (A) of 1 rectangle

A =\frac{1}{2}Area

A =\frac{1}{2}(18y^2 - 8)

A =9y^2 - 4

Express as difference of two squares

A =(3y - 2)(3y+2)

Area is calculated as:

A = Length * Width

So, by comparison:

Length = 3y - 2

Width = 3y + 2

The perimeter is:

Perimeter = 2 *(Length + Width)

Perimeter = 2 *(3y-2+3y+2)

Collect Like Terms

Perimeter = 2 *(3y+3y-2+2)

Perimeter = 2 *(6y)

Perimeter = 12y

8 0
3 years ago
Tia, Leah, and Tim all solve the problem 3(-x + 4) = -3x - 12. Tia solved and decided that the solution is x= 4. Leah solved the
nexus9112 [7]

Answer:

Tina

Step-by-step explanation:

bc if you sub in 4 for x the equations on both sides are 0

check:

-4 + 4 = 0                         -3 x 4 = -12

0 x 3 = 0                          12 + -12 = 0

                    0 = 0

please mark this as brainiest!!!!

5 0
3 years ago
The base of an isosceles triangle is 18 meters and its height is 40 meters. Find the
Natalka [10]

Answer:

What do u mean by legs please can you explain it further

6 0
3 years ago
? - 6= - 7<br> what is the answer
lukranit [14]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
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To<br> 83°<br> 89°<br> 119°<br> What is the value of x?
Kruka [31]

Answer: 145.5

Step-by-step explanation:

8 0
3 years ago
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