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DochEvi [55]
3 years ago
6

NEED HELP FAST!!!! will mark u as brainliest

Mathematics
1 answer:
Shalnov [3]3 years ago
6 0
Obviously, it's not rational, because it's the sum of two square roots, so cancel out A and B right away.

If we solve it
 
sqrt (18) + sqrt (2)
= sqrt (9*2) + sqrt (2)
= 3 sqrt (2) + sqrt (2)
= 4 sqrt (2)

D :D
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Hey, don’t call for that link thing. It’s fake. Here’s how I solved this: x = [35(80%) + 70(25%)]/(35 + 70) = 43.3%

The answer is 43.3%
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Defining Terms
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7 0
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F(x)= 3x^2<br><br> g(x) =7x+4<br><br> f(g(4))=____
Juliette [100K]
G(4)=7(4)+4
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3 0
3 years ago
P(A)* P(B)≠ p(AnB)<br><br> Why does it contain a not equal to sign
RoseWind [281]

Answer:

P(A|D) and P(D|A) from the table above are not equal because P(A|D) =  and P(D|A) =

Step-by-step explanation:

Conditional probability is the probability of one event occurring  with some relationship to one or more other events

.

P(A|D) is called the "Conditional Probability" of A given D

P(D|A) is called the "Conditional Probability" of D given A

The formula for conditional probability of P(A|D) = P(D∩A)/P(D)

The formula for conditional probability of P(D|A) = P(A∩D)/P(A)

The table

              ↓         ↓       ↓

           :  C     :   D    : Total

→ A      :  6     :    2    :   8

→ B      :  1      :    8    :   9

→Total :  7     :    10  :  17

∵ P(A|D) = P(D∩A)/P(D)

∵ P(D∩A) = 2 ⇒ the common of D and A

- P(D) means total of column D

∵ P(D) = 10

∴ P(A|D) =

∵ P(D|A) = P(A∩D)/P(A)

∵ P(A∩D) = 2 ⇒ the common of A and D

- P(A) means total of row A

∵ P(A) = 8

∴ P(D|A) =

∵ P(A|D) =

∵ P(D|A) =

∵   ≠  

∴ P(A|D) and P(D|A) from the table above are not equal

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Please helppp<br> solve for y
erastovalidia [21]

Answer: y=\frac{-x}{w-3}

Step-by-step explanation:

To solve for y, we want to isolate y.

w=\frac{3y-x}{y}             [multiply both sides by y]

yw=3y-x         [subtract both sides by 3y]

yw-3y=-x      [factor out y]

y(w-3)=-x     [divide both sides by (w-3)]

y=\frac{-x}{w-3}

Now, we know that y=\frac{-x}{w-3}.

5 0
2 years ago
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