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2 years ago

If the odds against an event are 3:5, then the probability that the event will fail to occur is

Mathematics

1 answer:

damaskus [11]2 years ago

3 0

Answer:

3/8

Step-by-step explanation:

probability = wanted outcomes / total outcomes

odds = wanted outcomes / unwanted outcomes

Odds of 3:5 losing means 3 losing outcomes and 5 winning outcomes.

The total outcomes is 8

The probability of losing which is the probability that the event will fail to occur is 3/8.

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the perimeter of a triangle is 240 cm .the lengths of the sides are 3:4:5. calculate the legths of the longest and shortest side

Shkiper50 [21]

Shortest-60cm

Longest-100cm

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3 years ago

-12 -4x + 3 = -1 what is the value of x

Vinil7 [7]

Answer:

Its -2

Step-by-step explanation:

Let's solve your equation step-by-step.

−12−4x+3=−1

Step 1: Simplify both sides of the equation.

−12−4x+3=−1

−12+−4x+3=−1

(−4x)+(−12+3)=−1(Combine Like Terms)

−4x+−9=−1

−4x−9=−1

Step 2: Add 9 to both sides.

−4x−9+9=−1+9

−4x=8

Step 3: Divide both sides by -4.

−4x

−4

x=−2

8 0

3 years ago

Read 2 more answers

Question

Ahat [919]

Answer:

4 minutes.

Step-by-step explanation:

There are three trains that Rachel has to take to go to her job. The total time is taken by her, on average, 1 hour and 20 minutes i.e. (60 + 20) = 80 minutes.

In his journey, she walks for 15 minutes and a train journey for about 53 minutes.

Then the total waiting time for the trains is (80 - 53 - 15) = 12 minutes.

Therefore, the average waiting time, in minutes, at each of the three train stations will be $\frac{12}{3} = 4$ minutes. (Answer)

8 0

3 years ago

Which equation represents a circle with a center at (-4,9) and a diameter of 10 units?

Dennis_Churaev [7]

Answer:

$(x+4)^2 + (y-9)^2 = 25$

Step-by-step explanation:

To write the equation of a circle, use the formula $(x-h)^2+(y-k)^2 = r^2$ where the center of the circle is (h, k).

This means the equation is $(x--4)^2 + (y-9)^2 = r^2\\\(x+4)^2 + (y-9)^2 = r^2$ .

Find the radius r by dividing the diameter of 10 in 2. The radius is 5.

So the equation of the circle is $(x+4)^2 + (y-9)^2 = 25$

7 0

3 years ago

Which answer describes the transformation of f (x) = x^2 −1 to g(x)=(x+2)^2−1 ?

pentagon [3]

Answer: A horizontal translation 2 units to the left

In this case, we are changing the variable x before it is being squared. This will have the effect of changing the input of the function. Imagine input 2 into the equation. Your first step would be to add 2. Therefore, you would need to start with a negative 2 to get us back to 0, or the beginning.

Since -2 is to the left of 0, the graph is moving 2 units to the left.

7 0

2 years ago