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Art [367]
3 years ago
15

I need to know 3a through 3e please!

Mathematics
1 answer:
jonny [76]3 years ago
6 0
You are seriously all it take is cross multiplying
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The reaction time (in seconds) to a certain stimulus is a continuous random variable with pdf f(x) 5 5 3 2 ? 1 x2 1
muminat

The probability that the reaction time for this density function is at most 2.5 seconds is equal to 0.9.

<h3>What is a density function?</h3>

A density function can be defined as a type of function which is used to represent the density of a continuous random variable that lies within a specific range.

<h3>How to calculate the probability that reaction time is at most 2.5 seconds?</h3>

P(X ≤ 2.5) = Fx(2.5)

Fx(2.5) = 3/2 - 3/2(2.5)

Fx(2.5) = 3/2 - 3/5

Fx(2.5) = 0.9.

Read more on density function here: brainly.com/question/14448717

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Complete Question:

The reaction time (in seconds) to a certain stimulus is a continuous random variable with pdf:

f(x) = \left \{ {{\frac{3}{2x^2} \;1 \leq x\leq 3} \atop {0}\;otherwise} \right

What is the probability that reaction time is at most 2.5 seconds?

7 0
2 years ago
Explain the steps you would take to find the area of the following composite shape.​
julsineya [31]

What composite shape? Where is the shape?

7 0
3 years ago
Each month for 7 months, Samuel mows 3 lawns . How many more lawns does he need to mow before he has mowed 29 lawns
Nimfa-mama [501]
The answer is 8 : ) hope this helped
8 0
3 years ago
Help me please <br>(pythagorean theorem)​
luda_lava [24]

Answer:

  13 cm × 12 cm

Step-by-step explanation:

The diagonal of the top or bottom faces of the box is the hypotenuse of a triangle with legs 12 cm and 5 cm. The Pythagorean theorem tells you that diagonal length is ...

  d = √(12² +5²) = √(144 +25) = √169 = 13 . . . cm

The width of the divider is 13 cm.

The height of the divider is shown as 12 cm.

The dimensions of the dividing rectangle are 13 cm by 12 cm.

4 0
3 years ago
(x+15)<br> (3x-35)<br> If the angles are congruent, what is x?
Arada [10]

Answer: x = 25

Step-by-step explanation:

If these angles are congruent, that means they are equal. Using that information, we can frame the following equation:

(x+15) = (3x-35)

To find 'x', we just need to solve the above equation.

(x+15) = (3x-35)

x+15 = 3x-35

x-3x = -35-15

-2x = -50

x = 25.

Therefore, 'x' is 25 degrees.

7 0
3 years ago
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