3 years ago

Determine if these 3 lengths will make a triangle and classify the triangle. 11, 11, 21

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

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Drag steps in the given order to evaluate this expression. (-5)(-4) - 6 - 4(6)

podryga [215]

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3 years ago

3y + 8 = ½ y + 28 Find y

Bess [88]

$\text{Hi there! :]}$

$\large\boxed{y = 8}$

$3y + 8 = 1/2y + 28\\\\\text{Subtract 8 from both sides:}\\\\3y + 8 - 8 = 1/2y + 28 - 8\\\\3y = 1/2y + 20\\\\\text{Subtract 1/2y from both sides:}\\\\3y - 1/2y = 1/2y - 1/2y+ 20\\ \\\text{Convert 3y to 6/2y to make subtracting easier:}\\5/2y = 20\\\\\text{Divide both sides by 5/2 (Multiply by reciprocal, or 2/5):}\\\\\\5/2y * 2/5 = 20 * 2/ 5\\\\y = 8$