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4 years ago

HELP ME PLEASE PLEASE

Mathematics

1 answer:

Andrews [41]4 years ago

4 0

Answer:

The answer is A.

Step-by-step explanation:

In order to see if a coordinate is a solution to any equation, you have to substitute the values of x and y into the equation :

$- 3x + 2y = - 21$

$let \: x = 5 \\ let \: y = - 3$

$- 3(5) + 2( - 3) = - 15 - 6 = - 21$

AND

$- x - y = - 2$

$let \: x = 5 \\ let \: y = - 3$

$- 5 - ( - 3) = - 5 + 3 = - 2$

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lina2011 [118]

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Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

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3 years ago

The figure below shows square ABCD inscribed on square PQRM on a coordinate plane. Which of the following expressions represents

vova2212 [387]

The hypotenuse of the triangle is given by:
$CB ^ 2 = RC ^ 2 + RB ^ 2
$
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$
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 CB = \sqrt{ 4 + 16} 

 CB = \sqrt{20} 

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$
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$
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3 years ago

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