The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service and has a working radio is 67%. Find the probability that a bus chosen at random has a working radio given that is it ready for service.can someone help? i know the answer but i need to show work as to how thats the proper answer.
The probability that a city bus is ready for service - 1

Answers

Answer 1
Answer:

Answer:

79.8%

Step-by-step explanation:

I believe this is correct, if not feel free to let me know and I will fix it. I'm sorry in advance if it's incorrect.


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The sum of a number and 2 times its reciprocal is -3

1 added by 1 is A. 2
B. 3
C. 5
D. 11
Explain your answer





Answers

Answer:

A. 2

Step-by-step explanation:

When adding two numbers, you are combining their values.

In this problem, you are combining the value of 1 with the value of 1. When you combine them, you are saying that you have two 1's. So in this problem, you combine both ones and get a final answer of 2.

It's was 55°F outside until the temperature increased 20°F. Which number is the additive inverse of the temperature increase? A) −20 B) −55 C) 20 D) 55

Answers

Answer:

Option A)  -20°F.

Step-by-step explanation:

Given : It's was 55°F outside until the temperature increased 20°F.

To find : Which number is the additive inverse of the temperature increase?

Solution :

Additive inverse is defined as,

For any number 'a', the additive inverse is a+(-a)=0 or -1\cdot a=-a

According to question,

The temperature is increased 20°F.

To follow the additive inverse property,

The sum became zero.

So, Additive inverse is -20°F.

Therefore, Option A is correct.

The additive inverse of the temperature increase is  -20°F.

A) -20

Hope its correct good-luck (sorry im so late)

6. Find the value of the expression.
40 = 8 x 9

Answers

Answer:

72

Step-by-step explanation:

72 I KNOW THIS bye thanks

In the diagram shown, M, N and P are collinear and QM=QN as shown. If mMQN = 48" andmNQP = 33. Justify why QNP must be isosceles.

Answers

An isosceles triangle is that the triangle must have two sides of equal length.

Triangle QNP is isosceles triangle because, QN = PN

In triangle QMN,  

        Since,  QM = QN

 So,  ∠QMN = ∠QNM

By property of triangle:

∠MQN + ∠QNM + ∠QMN = 180

   48 + 2 ∠QNM = 180

              ∠QNM = (180-48)/(2) = 66  degree

  So, ∠QMN = ∠QNM = 66 degree

from figure,

    ∠QNM + ∠QNP = 180

                    ∠QNP = 180 - 66 = 114 degree.

In triangle QNP,  

              ∠QNP + ∠PQN + ∠QPN = 180

                        ∠QPN = 180 - 33 - 114 = 33 degree

Since,     ∠QNP = ∠QPN = 33 degree

Therefore, triangle QNP is isosceles triangle.

Learn more:

brainly.com/question/19414224

Answer/Step-by-step explanation:

Let's find the measure of the angles of ∆QNP.

∆QMN is am isosceles ∆, because it has two equal sides. Therefore, its base angles would be the same. Thus:

m<MNQ = ½(180 - 48) (one of the base angles of ∆QMN)

m<MNQ = ½(132) = 66°

Next, find m<QNP

m<QNP = 180° - m<MNQ (linear pair angles)

m<QNP = 180° - 66° (Substitution)

m<QNP = 114°

Next, find m<P

m<P = 180 - (m<QNP + m<PQN) (sum of ∆)

m<P = 180 - (114 + 33)

m<P = 180 - 147

m<P = 33°

Thus, in ∆QNP, there are two equal angles, namely, <P and <PQN.

An isosceles ∆ had two equal base angles. Therefore, ∆QNP must be an isosceles ∆.

MO bisects ∠LMN, m∠NMO =6x-20,and 2x+36. Solve for x and find m∠LMO

Answers

Answer:

fwe

Step-by-step explanation:

What are 567 times 3

Answers

Answer:

1,701

Step-by-step explanation:

the answer is 1,701 :D