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3 years ago

Help please?????????????

Mathematics

1 answer:

goblinko [34]3 years ago

5 0

Answer:

D.) 3x - 3

Step-by-step explanation:

X - 4 + 2x + 1

= X + 2x - 4 + 1

= 3x - 4 + 1

= 3x - 3

I hope this helps!

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HELP PLEASE

jonny [76]

All you need is the definition of conditional probability:

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

$P(C\mid D)=\dfrac{P(C\cap D)}{P(D)}\iff0.26=\dfrac{P(C\cap D)}{0.22}\implies P(C\cap D)=0.0572$

$P(D\mid C)=\dfrac{P(C\cap D)}{P(C)}\iff0.17=\dfrac{0.0572}{P(C)}\implies P(C)\approx0.34$

and the answer would be B.

7 0

4 years ago

Read 2 more answers

Make doubles.add. 5+6 __+_+_ so,5+6=11

RUDIKE [14]

If you want 2 numbers, you have: 1+10, 2+9, 3+8, and so on. If you need 3 numbers you have 1+1+9, 1+2+8, 2+2+7, and so on.

5 0

4 years ago

Read 2 more answers

In parallelogram , ABCD ∠A has a measure of 62° . Find the measures of ∠B and ∠C.

Anastasy [175]

Answer:

<C = 62 degrees, <B= 118 degrees

Step-by-step explanation:

Opposite angles of parallelograms are always congruent.

Consecutive ( angles that are next to each other ) always add up to 180.

180-62=118

5 0

3 years ago

A box contains 5 blue pens and three black pens you chosse one pen at random do not replace it and then choose a second pen at r

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

U will add 5 plus 3 and then divide 8 by 2

3 0

3 years ago

Tony and Maria are two star-crossed lovers trying to get on a committee of 4 people. If there are 9 people eligible for this com

ASHA 777 [7]

Answer:

The number of ways Tony and Maria can both be selected for the committee is 8 ways.

Step-by-step explanation:

i) Tony and Maria have to be on the committee together or not at all.

ii) Let us consider Tony and Maria as combined as one person.

Therefore now we can say that the number of eligible people for the committee = 9 - 1 = 8.

iii) therefore the number of ways that both Tony and Maria can be selected for the committee are

= 8C1 = $\hspace{0.2cm}\binom{8}{1} = \frac{8!}{1! (8-1)!} = \frac{8!}{1!\times 7!} = \frac{8}{1} = \hspace{0.1cm}8 \hspace{0.1cm}ways$

6 0

3 years ago