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4 years ago

What is the value of the expression? 10 – 4 + (80 ÷ 20) y^4

1 answer:

3 0

Ok so 1st, you do the (80 ÷ 20), then you get
10-4+(4)y^4
then you 10-4
6+(4)y^4
then....
(10)y^4
so then it's
10y^4
Unless there is a =, but if not it's 10y^4

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In a basket, 3 out of 4 eggs are cracked. how many eggs are cracked if their is a total of 28 eggs in the basket

Sidana [21]

Cracked:all=3:4
3/4=x/28
cross multiply or times both sides by 28
3*7=x
21=x

21 are cracked (bad deal)

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3 years ago

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What is 9/5 as decimal

julsineya [31]

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4 years ago

3/4 of a pan of brownies was sitting on the counter.Paul decided to eat 1/3 if the brownies in the pan.How much of the whole pan

Lubov Fominskaja [6]

Answer:

1/4 of the pan

Step-by-step explanation:

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3 years ago

How is a rational number that is not an integer different from a rational number that is an integer?

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3 years ago

6. Suppose that a fair coin is tossed 2 times, and the result of each toss (H or T) is recorded.

nekit [7.7K]

Answer:

a) $S= {HH, HT, TH, TT}$

b) $P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25$

$P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5$

$P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25$

And we have the following table:

X | 0 | 1 | 2

P(X) | 0.25 | 0.5 | 0.25

Step-by-step explanation:

Let's define first some notation

H= represent a head for the coin tossed

T= represent tails for the coin tossed

We are going to toss a coin 2 times so then the size of the sample size is $2^2 = 4$

a. What is the sample space for this chance experiment?

The sampling space on this case is given by:

$S= {HH, HT, TH, TT}$

b. For this chance experiment, give the probability distribution for the random variable of the total number of heads observed.

The possible values for the number of heads are X=0,1,2. If we assume a fair coin then the probability of obtain heads is the same probability of obtain tails and we can find the distribution like this:

$P(X=0) = (2C0) (0.5)^0 (1-0.5)^{2-0}= 0.25$

$P(X=1) = (2C1) (0.5)^1 (1-0.5)^{2-1}= 0.5$

$P(X=2) = (2C2) (0.5)^2 (1-0.5)^{2-2}= 0.25$

And we have the following table:

X | 0 | 1 | 2

P(X) | 0.25 | 0.5 | 0.25

5 0

3 years ago