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3 years ago

Find the probability of rolling a prime number on a dice

1 answer:

7 0

A dice has numbers 1 through 6. Prime numbers are numbers that cannot be divided by anything except itself and one. Remember that 1 is not a prime number.

That means the numbers on a dice that are prime are: 2, 3, and 5. That means 3 out of the 6 numbers are prime, so the probability of rolling a prime number, since all sides have the same chance of being rolled is:
$\frac{3}{6} = \frac{1}{2}$

Your answer is 1/2 probability of rolling a prime.

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(3x^3/2. y^3÷ x^2 y^-1÷2)-2

ycow [4]

(
3
x
3
2
y
3
x
2
y
−
1
2
)
−
2
(
3
x
3
2
y
3
x
2
y
-
1
2
)
-
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x
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x
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b
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.
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⎝
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⎞
⎠
−
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(
3
y
3
x
2
y
-
1
2
x
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2
)
-
2
Multiply
x
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x
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by
x
−
3
2
x
-
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2
by adding the exponents.
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(
3
y
3
x
1
2
y
−
1
2
)
−
2
(
3
y
3
x
1
2
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-
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Move
y
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2
y
-
1
2
to the numerator using the negative exponent rule
1
b
−
n
=
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n
1
b
-
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=
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n
.
(
3
y
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y
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x
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(
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3
y
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2
x
1
2
)
-
2
Multiply
y
3
y
3
by
y
1
2
y
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⎛
⎝
3
y
7
2
x
1
2
⎞
⎠
−
2
(
3
y
7
2
x
1
2
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-
2
Change the sign of the exponent by rewriting the base as its reciprocal.
⎛
⎝
x
1
2
3
y
7
2
⎞
⎠
2
(
x
1
2
3
y
7
2
)
2
Use the power rule
(
a
b
)
n
=
a
n
b
n
(
a
b
)
n
=
a
n
b
n
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(
x
1
2
)
2
3
2
(
y
7
2
)
2
(
x
1
2
)
2
3
2
(
y
7
2
)
2
Simplify the numerator.
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x
3
2
(
y
7
2
)
2
x
3
2
(
y
7
2
)
2
Simplify the denominator.
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x
9
y
7

5 0

2 years ago

What is 1 and 2/5× 7

OleMash [197]

7/5 x 7/1 = 49/5 or 9 4/5

3 0

3 years ago

Read 2 more answers

two friends natasha and tricia share a sum of money in the ratio 5:3 respectively if tricia share was $126.75,calculate the tota

Firdavs [7]

Answer:

253.48

Step-by-step explanation:

Hello this is answer

7 0

2 years ago

A phone company offers two monthly plans plan A cost $9 Plus And additional 0.12 $ for each minute of calls. Plan B cost $27 plu

Alisiya [41]

Answer: They will charge same amount for 360 minutes of calls.

Step-by-step explanation:

A phone company offers two monthly plans plan A cost $9 Plus And additional 0.12 $ for each minute of calls. Plan B cost $27 plus an additional $0.07 for each minute of calls

For what amount of calling do the two plans cost the same?

Let the each minute of calls be 'x'.

So, for plan A would be

plan A cost $9 Plus And additional 0.12 $ for each minute of calls is expressed as

$y_1=9+0.12x$

Plan B cost $27 plus an additional $0.07 for each minute of calls is expressed as

$y_2=27+0.07x$

According to question, it becomes,

$y_1=y_2\\\\9+0.12x=27+0.07x\\\\0.12x-0.07x=27-9\\\\0.05x=18\\\\x=\dfrac{18}{0.05}\\\\x=360$

Hence, they will charge same amount for 360 minutes of calls.

5 0

3 years ago

Write three words that represent a positive number<br> ASAP PLEASE ‼️‼️‼️‼️‼️

pantera1 [17]

Answer:

Greater than zero

Explantion:

Hope it helps!!

4 0

2 years ago