3 years ago

One side of the square below measures 20cm what is the approximate area of the shaded region of the square?

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

8 0

Answer:

Step-by-step explanation:

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I need help fast this is due at the end of school!

Naddika [18.5K]

Answer:

She did everything correctly, therefore J

Step-by-step explanation:

6x-3+8+2(3+4x) doing distributed property gives you 6x-3+8+6+8x, step 3 you organize like terms. 14x-3+8+6 Step 4, you subtract 3 therefore in step 5 giving you 14x+11!

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2 years ago

Help!!!!! Not the top one by the way..!

OverLord2011 [107]

Answer:

$\large\boxed{x=-3\ and\ y=-11\to(-3,\ -11)}$

Step-by-step explanation:

$\underline{+\left\{\begin{array}{ccc}-6x+y=7\\3x-y=2\end{array}\right}\qquad\text{add both sides of the equations}\\\\.\qquad-3x=9\qquad\text{divide both sides by (-3)}\\.\qquad\boxed{x=-3}\\\\\text{Put the value of x to the first equation:}\\\\-6(-3)+y=7\\18+y=7\qquad\text{subtract 18 from both sides}\\\boxed{y=-11}$