3 years ago

Given that x/1 = 3y/8, find the ratio of : y

Mathematics

1 answer:

brilliants [131]3 years ago

5 0

Answer:

3 : 8

Step-by-step explanation:

$\frac{x}{1} = \frac{3y}{8}$

cross multiply

8x = 3y

x = 3/8

x : y = 3 : 8

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Which two values of x are roots of the polynomial below?

Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

$x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}$

3. Solve the square root:

$x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}$

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$x=\frac{-5+-\sqrt{-3} }{2(1)}$

4. Simplify the rest:

$x=\frac{-5+-\sqrt{-3} }{2}$

5. Separate the solutions:

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Thus, options B and C are the answers.

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4 0

2 years ago

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aev [14]

Answer:

Step-by-step explanation:

5 0

2 years ago

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Pepsi [2]

Answer:

y = (x-16)/7

Step-by-step explanation:

x - 7y = 16

~Subtract x to both sides

-7y = 16 - x

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3 years ago

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sergiy2304 [10]

Answer:

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Step-by-step explanation:

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2 years ago

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