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3 years ago

18 ÷ x = -2 what does x equal

Mathematics

1 answer:

Nikitich [7]3 years ago

3 0

Answer: x = -9

Step-by-step explanation:

18/x = -2

18x = -2x

x = -18/2 = -9

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Answer:

Step-by-step explanation:

Applying,

The angle bisector theorem of triangle

From the diagram,

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3 years ago

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Step-by-step explanation:

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2 years ago

Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean valu

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Answer:

(1) 0.4207

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Step-by-step explanation:

Given,

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$\sigma = 1.25$

(1) P(X ≥ 17.5) = 1 - P( X ≤ 17.5)

$= 1- P(\frac{x-\mu}{\sigma} \leq \frac{17.5-\mu}{\sigma})$

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$=P(z\leq \frac{18 - 15}{1.25}) - P(z\leq \frac{14 - 15}{1.25})$

$=P(z\leq \frac{3}{1.25}) - P(z\leq -\frac{1}{1.25})$

$=P(z\leq 2.4) - P(z\leq -0.8)$

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= 0.7799

8 0

3 years ago