All categories

3 years ago

A pair of dice is rolled 20 times. what is the probability that a sum of 5 is rolled at least r times

1 answer:

8 0

The probability of the sum of 5 is 5/20 or 1/4.
Solution:
Formula: P(A) = No. of favorable outcomes / Total no. of possible outcomes
P(A) = 5/20
P(A) = 1/4

You might be interested in

55. A triangle has two angles measuring 46 and 14. Determine the measure of the third angle.

Step2247 [10]

Answer:

1. 180-(46+14)=120

2.46+14+120=180

Step-by-step explanation:

4 0

3 years ago

For the equations given below, which statement is true?

seraphim [82]

Answer:

D. The equations do not have the same solution because the second eqlition can never be obtained when multiplying the first

equation by any value

Step-by-step explanation:

-21=14 Equ(1)

6.1=-42 Equ(2)

Multiplying the first equation by -3 will give

-63= -42

Which is not equivalent to the second equation

Multiplying the first equation by 3, we have

-63=42

Not equivalent to the second equation

Multiplying both sides of the first equation by -4, we have

84=56

Not equivalent to the second equation

D. The equations do not have the same solution because the second eqlition can never be obtained when multiplying the first

equation by any value

3 0

3 years ago

What is 2 - 3y is less than or equal to 12? That was the question.

Ivenika [448]

Answer:

$2-3y\leq 12\\-2+2-3y\leq 12-2\\-3y\leq 10\\\frac{-3}{3}y\leq \frac{10}{3} \\y\geq \frac{10}{3}$

Step-by-step explanation:

8 0

3 years ago

Diego chose a number to represent the input of the machine shown and `40` was the result. What is the input? I think it is 14, b

Simora [160]

Answer:

Step-by-step explanation:

it is 14 because when you divide 40 to 14 it is ...

5 0

3 years ago

Pls help pls pls ): precalc

Lena [83]

<h3>Answer: Choice A</h3>

$\log_p N = b$ is not the same as $b^p = N$

The base of the log is p, while the base of the exponential is b. The two don't match. If it said $\log_p N = b \text{ is the same as } p^b = N$ then it would be a valid statement since the bases are both p.

-----------------

Extra info:

Choice B is a valid statement because Ln is a natural log with base 'e'

Choice C is valid as any square root is really something to the 1/2 power

Choice D is valid for similar reasons mentioned earlier

5 0

3 years ago

Read 2 more answers