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2 years ago

What is -1/4 (4x+8) + 6 = 2x -8

Mathematics

1 answer:

Lynna [10]2 years ago

3 0

Answer:

Step-by-step explanation:

-1/4 ( 4x + 8) + 6 = 2x - 8

-x - 2 + 6 = 2x - 8

-x + 4 = 2x - 8

-3x + 4 = -8

-3x = -12

x = 4

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Fractions closer to 0 than 1

vagabundo [1.1K]

Answer:

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Step-by-step explanation:

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2 years ago

Suppose that out of 20% of all packages from Amazon are delivered by UPS. 15% of the packages that are delivered by UPS weighs 2

Gelneren [198K]

Answer:

0.1938 = 19.38% probability that a package is delivered by UPS if it weighs 2 lbs or more

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: It weighs 2 lbs or more

Event B: Delivered by UPS

15% of the packages that are delivered by UPS weighs 2 lbs or more.

This means that $P(A \cap B) = 0.15$

More than 2 lbs:

15% of 20%(UPS)

93% of 80%(Not delivered by UPS). So

$P(A) = 0.15*0.2 + 0.93*0.8 = 0.774$

a. What is the probability that a package is delivered by UPS if it weighs 2 lbs or more

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.15}{0.774} = 0.1938$

0.1938 = 19.38% probability that a package is delivered by UPS if it weighs 2 lbs or more

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2 years ago

A polynomial function P(x) with rational coefficients has the given roots find two additional roots of P(x)=0 i and 7+8i

den301095 [7]

Note that if a + bi is a root of P(x) = 0, then a – bi is also a root of P(x) = 0.

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

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3 years ago

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balu736 [363]

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2 years ago

What is -1/4 (4x+8) + 6 = 2x -8 ​

What is -1/4 (4x+8) + 6 = 2x -8