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3 years ago

2. A fair dice is rolled. What is the probability that a number divisible by 3 is rolled?

Mathematics

1 answer:

Anni [7]3 years ago

6 0

Answer: 2

Step-by-step explanation:

A dice has 6 numbers on it, 1,2,3,4,5, and 6.

how many pairs of 3 can you make?

(1 2 3) (4 5 6)

There are 2 pairs, so your answer is 2

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Prove that<br> cos^4∆ - sin^4∆ = 2cos^2∆ - 1

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$\cos^{4} x-\sin^{4} x\\\\=(\cos^{2} x+\sin^{2} x)(\cos^{2} x-\sin^{2} x)\\\\=\cos^{2} x-\sin^{2} x\\\\=\cos^{2} x-(1-\cos^{2} x)\\\\=2\cos^{2} x-1$

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1 year ago

Which value is in the domain of f(x)?

MatroZZZ [7]

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Answer:

Step-by-step explanation:

The function definition tells you its domain is ...

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Values -7, -6, and 5 are not in this domain.

Of the listed values, only 4 is in the domain.

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3 years ago

Which expression represents the number 4+−25−−−−√ rewritten in a+bi form?

mr_godi [17]

Answer:

Option A. 4+5i

Step-by-step explanation:

we know that

The form of (a + bi) is known as a complex number where a and b are real numbers and i is an imaginary number equivalent to the square root of negative 1

we have the number

$4+\sqrt{-25}$

Remember

$i=\sqrt{-1}$

substitute

$4+\sqrt{-25}=4+\sqrt{(-1)(25)}=4+5\sqrt{(-1)}=4+5i$

4 0

3 years ago

These box plots show the prices for two different brands of shoes.

LUCKY_DIMON [66]

Answer: I’m pretty sure is letter A

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3 years ago

Please help! <br><br> What is -2/3 x 1/6?

boyakko [2]

Answer:

I believe the answer is -1/9

Step-by-step explanation:

-2/3 × 1/6

= -2 × 1 / 3 × 6

= -2/18

= -2 ÷ 2 / 18 ÷ 2

= -1/9

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3 years ago