3 years ago

The quotient of a number and 6decreased by 10 is equal to 2??

Mathematics

1 answer:

Bas_tet [7]3 years ago

7 0

The number equals -48

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Write a different expression that has the same quotient as (−3)/8 and −(3/8) .

ser-zykov [4K]

Answer: its also -3/4 in standard form -0.75 as a decimal

Step-by-step explanation: i think i knew what u meant

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2 years ago

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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

V125BC [204]

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

4 0

3 years ago

Give f(x) = 3x + 3, solve for x when f(x) = 6

Tems11 [23]

Answer:

x = 1

Step-by-step explanation:

f(x) = 3x + 3

f(x) = 6

=> 3x + 3 = 6

=> 3x = 3

=> x = 1

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2 years ago

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2. If m <1 = 43, what is m <4?

Alex17521 [72]

I do need help please

6 0

3 years ago

Factorize: x² + 3x + 2

zvonat [6]

Step-by-step explanation:

x² + 3x + 2

x² + x + 2x + 2 because 1+2=3 and 2×1=2

By taking out common terms, we get

x(x+1)+2(x+1)

(x+1)(x+2)

7 0

3 years ago