4 years ago

42 less than the product of 28 and an unknown number is 154. What is the value of the unknown number?

Mathematics

1 answer:

kap26 [50]4 years ago

6 0

(28 * x) -42 = 154
28x - 42 = 154
28x = 196

the unknown number is 7

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The coordinates A(2, 1), B(7, 1), C(2, 4) form what type of polygon?

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Step-by-step explanation:

$Slope \: of \: AB = \frac{1 - 1}{7 - 2} = \frac{0}{5} = 0 \\ \\ Slope \: of \: BC = \frac{4 - 1}{2 - 7} = \frac{3}{ - 5} = - \frac{3}{ 5} \\ \\ \because \: Slope \: of \: AB \neq \: Slope \: of \: BC \\ \\ \therefore \: given \: points \: are \: non - collinear. \\$