3 years ago

What the answer and how

Mathematics

1 answer:

Slav-nsk [51]3 years ago

3 0

Not for sure but it’s most like 6/9

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I think it’s probably 60

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HELP, I’M STUCK !

vaieri [72.5K]

Since P(X = x) = 0.3 for all 0 ≤ x ≤ α, we have

$\displaystyle\int_{-\infty}^\infty P(X=x)\,\mathrm dx=1\implies0.3\int_0^\alpha\mathrm dx=0.3\alpha=1\implies\alpha=\dfrac{10}3$

So,

$P(X>2) = \displaystyle\int_2^\infty P(X=x)\,\mathrm dx=0.3\int_2^{\frac{10}3}\mathrm dx$

$P(X>2)=0.3\left(\dfrac{10}3-2\right)=\boxed{\dfrac25}$

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zavuch27 [327]

Answer is given above

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Luis wants to buy a skateboard that usually sells for $135. At big AL's they are discounted 20%. What is the total cost of the s

tino4ka555 [31]

Answer:

117.99

Step-by-step explanation:

First step is to find the discount

Discount = original price * discount rate

= 135 * 20%

= 135*.20

=27

Take the discount from the original price and that is the new price

new price = original price - discount

= 135-27

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Now we need to find the tax

tax = new price * tax rate

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= 108 * .0925

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The final price is the new price plus the tax

final price = new price + tax

= 108+9.99

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60) 786 Long division?

murzikaleks [220]

Answer:

This image will help!

Thanks and have a good day.

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