8-2 3/4 please help im so confused...

2 answers:

8 0

First we set up our problem.

8- 2 3/4

Next, we turn our mixed fraction, 2 3/4, into an improper fraction.

2 3/4= 11/4.

Next, we turn 8 into a fraction.

32/4.

The reason we chose 4 as our denominator was to make it easier to subtract it from 11/4.

Next we subtract our two fractions.

32/4-11/4=21/4.

Finally, we simplify 21/4.

5 1/4.

Our final answer is 5 1/4.

Have a nice day! :)

Ivanshal [37]3 years ago

3 0

The answer is 5 1/4.

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An angle measures 72 degrees more than the measure of its complementary angle what is the measure of each angle

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Answer:

<h2>measure of Angle 1 = 81°</h2><h2>Measure of angle 2 = 9°</h2>

Step-by-step explanation:

we need to solve this system

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If we substitute x by y+72 into the equation (1) we will get

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A player tosses a die 6 times.If gets a number 6 Atleast two times he wins 2 dollars ,otherwise he looses 1 dollar.. Find the ex

swat32

Answer:

$E(x)=-0.2101$

Step-by-step explanation:

The expected value for a discrete variable is calculated as:

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So, a player can win 2 dollars or looses 1 dollar, it means that $x_1$ is equal to 2 and $x_2$ is equal to -1.

Then, we need to calculated the probability that the player win 2 dollars and the probability that the player loses 1 dollar.

If there are n identical and independent events with a probability p of success and a probability (1-p) of fail, the probability that a events from the n are success are equal to:

$P(a)=nCa*p^a*(1-p)^{n-a}$