Solve for x and find the missing angles :)

Mathematics

1 answer:

muminat2 years ago

7 0

Answer:

x = 20

I'm not sure about the missing angles

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A six-sided die is rolled two times. What is the theoretical fractional probability that the first number is even and the second

Nostrana [21]

Answer:

The theoretical probability that the first number is even and the second number is odd is $\frac{1}{4}$ .

Step-by-step explanation:

Since each dice has six sides, and there are two die, the total amount of different outcomes are $6^2$ or 36. The probability of getting an even number on the first roll is $\frac{3}{6}$ or $\frac{1}{2}$ , and the probability of getting an odd number on the second roll is also $\frac{3}{6}$ or $\frac{1}{2}$ , so the probability of getting an even number on the first roll and an odd number on the second roll is $\frac{1}{2} * \frac{1}{2} = \frac{1}{4}$ .

6 0

3 years ago

PLEASE HELP! Since AB=1 and 1=BC, BC=AB by which property?

erastovalidia [21]

Substitution.

Here is an example.

Let x be equal to 3 and y equal to 3.

$x=3, y=3$

From this we can conclude that the values of both x and y are equal to three therefore x and y have the same value and are equal.

$x\wedge y=3\Longrightarrow x=y$

Here in your case we have:

$AB=1, BC=1 \\AB\wedge BC=1\Longrightarrow AB=BC$

Hope this helps.

r3t40

7 0

3 years ago

A Poker club has 10 members. A president and a vice-president are to be selected. In how many ways can this be done if everyone

Nesterboy [21]

Answer:

90 different ways

Step-by-step explanation:

We have a total of 10 members, and we want to find how many groups of 2 members we can have, where the order of each member in the group of 2 is important, so we have a permutation problem.

To solve this problem, we need to calculate a permutation of 10 choose 2.

The formula for a permutation of n choose p is:

$P(n, p) = n! / (n - p)!$