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2 years ago

(-5x2 – 43 – 1) +(-4x2 – 4x)

Mathematics

1 answer:

emmainna [20.7K]2 years ago

4 0

Answer:

−9x 2 -44-4x

Step-by-step explanation:

1 Simplifica -5{x}^{2}-43-1−5x

−43−1 a -5{x}^{2}-44−5x

−44.

-5{x}^{2}-44-4{x}^{2}-4x

−5x

−44−4x

−4x

2 Colecciona los términos semejantes.

(-5{x}^{2}-4{x}^{2})-44-4x

(−5x

−4x

)−44−4x

3 Simplifica.

-9{x}^{2}-44-4x

−9x

−44−4x

listo espero te halla ayudado

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2 years ago

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Read 2 more answers

The cycle time for trucks hauling concrete to a highway construction site is uniformly distributed over the interval 40 to 75 mi

jeka57 [31]

Answer:

0.8333 = 83.33% probability that the cycle time exceeds 50 minutes if it is known that the cycle time exceeds 45 minutes

Step-by-step explanation:

A distribution is called uniform if each outcome has the same probability of happening.

The uniform distributon has two bounds, a and b, and the probability of finding a value higher than x is given by:

$P(X > x) = \frac{b - x}{b - a}$

Uniformly distributed over the interval 40 to 75 minutes.

This means that $a = 40, b = 75$

It is known that the cycle time exceeds 45 minutes

This means that we can use $a = 45$

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