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3 years ago

Help please, I don’t know what to do..

Mathematics

1 answer:

victus00 [196]3 years ago

6 0

Answer:

d. 6

Step-by-step explanation:

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Hey can you please help me posted picture of question

Ronch [10]

The formulas for conditional probability are:
$P(A\cap B')=P(A)\cdot P(B'|A)$
$P(A\cap B')=P(B')\cdot P(A|B')$ .
Since $P(A\cap B')= \frac{1}{6}$ and $p(B')= \frac{7}{18}$ , you have the equation $\frac{1}{6} = \frac{7}{18} \cdot P(A|B')$ .
Therefore, $P(A|B')= \frac{1}{6} : \frac{7}{18} =\frac{1}{6} \cdot \frac{18}{7} = \frac{3}{7}$ .
Answer: The correct choice is D.

8 0

4 years ago

If 3000 ft3

ale4655 [162]

Charles law:
V1/T1=V2/T2
where T is in deg. K.
75°F=297.04°K
55°F=285.92°K
=>
V2=V1/T1*T2
=3000*(285.92/297.4)
=2887.8 c.f.

4 0

3 years ago

-5 1/4-(-7 1/2) I need this simplified please help!!

meriva

Answer:

-51/4 or -12.75

Step-by-step explanation:

3 0

3 years ago

What is the value of 9^-6/9^-4?

eduard

Answer:

9^-2 or 1/81

Step-by-step explanation:

Exponent Rule:

When dividing exponents, they're subtracted.

Since the second term has a negative exponent, we add.

Change the problem into multiplication, then add 4 to the exponent of -6:

$\frac{9^{-6} }{9^{-4} } = 9^{-6} \times 9^{4}=9^{-2}$ $or$ $\frac{1}{81}$

7 0

2 years ago

Rewrite the radicand as two factors, one of which is a perfect cube. 3/250

Flauer [41]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
\cfrac{3}{250}\qquad 
\begin{cases}
250=2\cdot 5\cdot 5\cdot 5\\
\qquad 2\cdot 5^3
\end{cases}\implies \cfrac{3}{5^3\cdot 2}\implies \cfrac{1}{5^3}\cdot \cfrac{3}{2}
\\\\\\
5^{-3}\cdot \cfrac{3}{2}\implies (5^{-1})^3\cdot \cfrac{3}{2}$

6 0

3 years ago