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3 years ago

15

Assume the following is a true statement:

1 answer:

vfiekz [6]3 years ago

3 0

We analyze the statement: If it is raining,I will carry an umbrella. This statement can be true because one would surely depend on the weather so as to do not bring any unnecessary things anymore. When the statement is reversed. I will carry an umbrella if it is raining which still makes sense. Answer then is D

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The measure of each exterior angle of a regular polygon is 18. find the number of sides in the polygon

Tanya [424]

The sum of all exterior angles for every shape is 360 so just divide 360 by the measurement of one exterior angle (18) to get 20

3 0

3 years ago

There are two boxes containing red and blue balls. For box A, there are 3red balls and 7blue balls. For box B, there are 6red ba

Brums [2.3K]

Answer:

0.3333 = 33.33% probability that this red ball is from box A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Red ball

Event B: From box A.

Probability of a red ball:

3/10 = 0.3 of 1/2 = 0.5(box A)

6/10 = 0.6 of 1/2 = 0.5(box B). So

$P(A) = 0.3*0.5 + 0.6*0.5 = 0.45$

Probability of a red ball from box A:

0.3 of 0.5, so:

$P(A \cap B) = 0.3*0.5 = 0.15$

What is the probability that this red ball is from box A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.15}{0.45} = 0.3333$

0.3333 = 33.33% probability that this red ball is from box A.

8 0

3 years ago

Is 69 a multiple of 3?

Mrac [35]

Yea. 3 times 23 equals 69.

4 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP

likoan [24]

Answer:

a

Step-by-step explanation:

it goes 8 units over and its going up 7

4 0

3 years ago

What is the slope of the line in the graph below?

Ivahew [28]

<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps </u></em><em><u>you </u></em><em><u>dear.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>take </u></em><em><u>care!</u></em>

8 0

2 years ago