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3 years ago

Plz help needed to graduate!!

Mathematics

2 answers:

Deffense [45]3 years ago

4 0

$\frac{2 + \sqrt{ - 3} }{2} \times \frac{2 - \sqrt{ - 3} }{2} = \frac{4 + 3}{4} = \frac{7}{4}$

Ksju [112]3 years ago

3 0

I hope the answer is 7/4

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Daniel drew a toy from a treasure chest containing 30 different toys. He selected a bouncy ball without replacement and then sel

borishaifa [10]

Answer:

$Pr = \frac{1}{870}$

Step-by-step explanation:

Given

$n =30$

Required

Probability of selecting 2 toys of different types

From the question, we understand that all toys are different i.e. 1 of each type.

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So, after the first toy is selected; there are n - 1 toys left.

So, the probability is:

$Pr = \frac{1}{n} * \frac{1}{n - 1}$

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2 years ago

-8x times 5 to the power of 3 would equal -1000x right?

marusya05 [52]

No. If you write it out, it would be -8*5 which is -40. (-40)^3 is -64000. So your answer would be -64000x

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3 years ago