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3 years ago

NEED THE ANSWER NOW!

Mathematics

1 answer:

natulia [17]3 years ago

4 0

Boil in shakes. Jumpy one yaownwj native yjwokwn yen’s I is Jan kajwcappinh

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The graph shows a probability distribution. What is P(2.5≤X≤4)?

jeka57 [31]

Answer:

P(2.5≤X≤4) = 0,3125‬

Step-by-step explanation:

We know that the area under the curve of ANY probability distribution should not be greater than 1.

In this case, we now that 4P = 1, therefore, P=1/4. Where 'P' represents the height of the rectangle that represents the probability distribution.

The probability of P(2.5≤X≤4) will be given by the area of the following rectangle:

(4 - 2.5) × 1,5 = 0,3125‬

Therefore, P(2.5≤X≤4) = 0,3125‬

5 0

4 years ago

Read 2 more answers

amy is going to put 6 triangular tables together to make one large hexagon shaped table. what will be the area of the hexagon ta

tresset_1 [31]

Answer:

The area of the hexagonal table will be 27 square feet

Step-by-step explanation:

Given:

The height of the triangle = 3 feet

The base of the triangle = 3 feet

To Find:

The area of the hexagonal table = "

Solution:

Step 1: Finding the area of the triangle

The area of the triangle = $\frac{1}{2} \times base \times height$

On substituting the values

The area of the triangle is = $\frac{1}{2} \times 3 \times 3$

The area of the triangle = $\frac{9}{2}$ square feet

Step 2 : Finding the area of the hexagonal table

The area of the hexagonal table is = 6 X area of one triangle

The area of the hexagonal table = $6 \times \frac{9}{2}$

The area of the hexagonal table = $\frac{54}{2}$

The area of the hexagonal table = 27 square feet

3 0

3 years ago

Read 2 more answers

Which of the following expressions are equivalent to(x + 5)^2?

jek_recluse [69]

Answer:

$x^{2} +5x+5x+25\\x^{2} +10x+25$

Step-by-step explanation:

$(x+5)^{2} =x^{2} +10x+25$

4 0

3 years ago

A. y = 8 − 7x B. y = 7x + 8 C. y = 7x − 8 D. y = 8x − 7

Anna71 [15]

Answer:

I'm getting

y=-7x+8

The 7 is negative for me..You should maybe try yourself too and see what you get I might have made a mistake

Step-by-step explanation:

I'm guessing you live somewhere in the U.S. so I'll use the equation you use there

Equation:

$y = mx + b$

$m = \frac{y1 - y2}{x1 - x2}$

first pick two points

I'll pick (0,8) and (1,1)

$m = \frac{8 - 1}{0 - 1} = \frac{7}{ - 1 } = - 7$

this means that the slope is -7

So far the equation will look like this

$y = - 7x + b$

to get b pick one point, I'll pick (0,8) and replace y and x

$8 = - 7 \times 0 + b$

when you solve this you'll get b

$b = 8$

So the equation will look this

$y = - 7x + 8$

7 0

3 years ago

A mountain bike has a diameter of 26 inches. To the nearest foot how far does the tire travel when it makes 32 revolutions?

Tcecarenko [31]

Hello!

You have to find the circumference

You use the equation

$2 \pi r$

r is radius which is half the diameter

This gives us 81.68

Multiply this by 32

81.68 * 32 = 2613.76

This is 217.8133333 feet

The answer is 217.8133 feet

Hope this helps!

8 0

3 years ago