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3 years ago

How to do you add probability

1 answer:

6 0

To add the probabilities, you would have to treat them like any other numbers. If they are decimals or percents, you can follow basic addition rules. If you are given the probabilities as fractions, make sure that you have common denominators when you add them.

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How do I calculate this? Is there a formula?

alex41 [277]

<u>Answer:</u>

Height of cables = 23.75 meters

<u>Step-by-step explanation:</u>

We are given that the road is suspended from twin towers whose cables are parabolic in shape.

For this situation, imagine a graph where the x-axis represent the road surface and the point (0,0) represents the point that is on the road surface midway between the two towers.

Then draw a parabola having vertex at (0,0) and curving upwards on either side of the vertex at a distance of $x = 600$ or $x = -600$ , and y at 95.

We know that the equation of a parabola is in the form $y=ax^2$ and here it passes through the point $(600, 95)$ .

$y=ax^2$

$95=a \times 600^2$

$a=\frac{95}{360000}$

$a=\frac{19}{72000}$

So new equation for parabola would be $y=\frac{19x^2}{72000}$ .

Now we have to find the height $(y)$ of the cable when $x= 300$ .

$y=\frac{19 (300)^2}{72000}$

y = 23.75 meters

8 0

3 years ago

Read 2 more answers

A tackle box is a rectangular solid with sides of 15 in., 12 in., and 9 in. What is its volume?

Scrat [10]

The answer is 15 x 12 x 9= 1,620

4 0

3 years ago

Read 2 more answers

The black line is a graph of y=x. Which of these equations could represent the blue line

Ymorist [56]

Answer:

third option

Step-by-step explanation:

y = 1/2 x

6 0

3 years ago

Help solve #12 plz

nexus9112 [7]

Answer:

<h3> The second: f(-5) = 2</h3>

Step-by-step explanation:

x = -5

-5 < -4 and if x<-4 then f(x) = - 2x - 8

so:

f(-5) = - 2(-5) - 8 = 10 - 8 = 2

8 0

3 years ago

What does he mean on question one

Katarina [22]

You plug -2 in for the function k(p) and add it to the function g(w), getting
(-2+3)*(-2-7)+(-2-5)^2=1*-9+49=40 for a - I challenge you to do B on your own!

6 0

3 years ago