3 years ago

Solve for x. --4(2x – 4) - 2x - 2 = -36

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

8 0

Answer:

X=-3

Step-by-step explanation:

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Answer:

4% compounded yearly

Step-by-step explanation:

20 / 500 = 0.04

0.04 * 100 = 4%

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3 years ago

A certain virus infects one in every 200 people. a test used to detect the virus in a person is positive 70% of the time when t

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We're told that

$P(A)=\dfrac1{200}=0.005\implies P(A^C)=0.995$

$P(B\mid A)=0.7$

$P(B\mid A^C)=0.05$

a. We want to find $P(A\mid B)$ . By definition of conditional probability,

$P(A\mid B)=\dfrac{P(A\cap B)}{P(B)}$

By the law of total probability,

$P(B)=P(B\cap A)+P(B\cap A^C)=P(B\mid A)P(A)+P(B\mid A^C)P(A^C)$

Then

$P(A\mid B)=\dfrac{P(B\mid A)P(A)}{P(B\mid A)P(A)+P(B\mid A^C)P(A^C)}\approx0.0657$

(the first equality is Bayes' theorem)

b. We want to find $P(A^C\mid B^C)$ .

$P(A^C\mid B^C)=\dfrac{P(A^C\cap B^C)}{P(B^C)}=\dfrac{P(B^C\mid A^C)P(A^C)}{1-P(B)}\approx0.9984$

since $P(B^C\mid A^C)=1-P(B\mid A^C)$ .

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3 years ago

Write a multi-step real-world problem in which the answer can be found by estimating 18% of 30. Then explain how you would solve

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3 years ago

How do I factor this:

bija089 [108]

x²+6x²=7x²

then the rest is done for you

7x²+12x+8

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3 years ago

bob rides his motor cycle with a constant speed of 76 mph how long will it take for him to go 266 miles? Trashmaster or ethanhun

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Here, Time = Distance / speed

Substitute your known values,

t = 266 miles / 76 mph

t = 3.5 hours

In short, Your Answer would be: 3.5 Hours

Hope this helps!

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3 years ago