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GalinKa [24]
3 years ago
11

Help me please ! I know this question is easy for some but please help me

Mathematics
1 answer:
Olin [163]3 years ago
6 0

Answer:

  126 cm^2

Step-by-step explanation:

Let's name the point where the two triangles meet on the horizontal line point Z. Then the area of the left triangle is ...

 A(left) = (1/2)(XZ)(AX)

and the are of the right triangle is ...

 A(right) = (1/2)(ZY)(YC)

Now, we know that AX = YC = (1/2)AD, so the sum of the two triangle areas is ...

  A(triangle total) = A(left) +A(right)

  = (1/2)(AX)(XZ +ZY)

Since XZ +ZY = AB, we have the total triangle area equal to ...

  A(triangle total) = (1/2)((1/2)AD)(AB) = (1/4)(AD)(AB)

Now (AD)(AB) = 168 cm^2, so the <em>unshaded</em> area is ...

  A(unshaded) = A(rectangle) -A(triangle total)

  = 168 cm^2 -(1/4)(168 cm^2)

  = 126 cm^2

The unshaded area in the figure is 126 cm^2.

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Write and solve the equations. A number y is five less than thirteen.
Genrish500 [490]

We can follow the following steps to make an equation and solve it.

Step 1:

five less than 13 means we have to subtract 5 from 13

so it becomes 13-5

Step 2:

A number y is five less than thirteen.

Now in algebraic expressions, "is" stands for "="

So we have:

y=13-5

Step 3:

Solving the equation to find y.

y=13-5

Subtracting 5 from 13, we get :

y=8

Answer:

For the given equation the solution is y=8.

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Answer:

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Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

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\text{Price of pair of jeans this year}=\$75+\$1.5

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7 0
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kramer
The common difference is -6.

Because,
14 - 6 = 8
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