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2 years ago

The square root of which of the following integers is between 7 and 8

Mathematics

2 answers:

pashok25 [27]2 years ago

5 0

Answer:

the square root of 50 and 60

Step-by-step explanation:

olya-2409 [2.1K]2 years ago

3 0

Answer:

Your answer would be the square root of 50 and 60.

Step-by-step explanation:

Hope I helped!!

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Andy has 31 coins made up of quarters and half dollars, and their total value is $11.00. How many quarters does he have?

charle [14.2K]

Answer:

Step-by-step explanation:

This situation has two unknowns - the total number of half dollars and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.

h+q=31 is an equation representing the total number of coins
0.50h+0.25q=11 is an equation representing the total value in money based on the number of coin. 0.50 and 0.25 come from the value of a half dollar and quarter individually.

We write the first equation in terms of q by subtracting it across the equal sign to get h=31-q. We now substitute this for h in the second equation.

0.50(31-q)+0.25q=11

15.5-0.50q+0.25q=11

15.5-0.25q=11

After simplifying, we subtract 15.5 across and divide by the coefficient of q.

-0.25q=-4.5

q=4

We now know of the 31 coins that 4 are quarters.

3 0

3 years ago

X=b+my solve for M literal equation

Oliga [24]

Answer:

m = $\frac{x-b}{y}$

Step-by-step explanation:

Given

x = b + my ( subtract b from both sides )

x - b = my ( divide both sides by y )

$\frac{x-b}{y}$ = m

7 0

3 years ago

Read 2 more answers

Hello,

adelina 88 [10]

Answer:

go down there

Step-by-step explanation:

dsbfgriuuir

3 0

2 years ago

Every time I use a piece of scrap paper, I crumple it up and try to shoot it inside the recycling bin across the room. I'm prett

valentinak56 [21]

Using the binomial distribution, it is found that there is a 0.0012 = 0.12% probability at least two of them make it inside the recycling bin.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

With 5 shoots, the probability of making at least one is $\frac{211}{243}$ , hence the probability of making none, P(X = 0), is $\frac{232}{243}$ , hence:

$(1 - p)^5 = \frac{232}{243}$

$\sqrt[5]{(1 - p)^5} = \sqrt[5]{\frac{232}{243}}$

1 - p = 0.9908

p = 0.0092

Then, with 6 shoots, the parameters are:

n = 6, p = 0.0092.

The probability that at least two of them make it inside the recycling bin is:

$P(X \geq 2) = 1 - P(X < 2)$

In which:

[P(X < 2) = P(X = 0) + P(X = 1)

Then:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{6,0}.(0.0092)^{0}.(0.9908)^{6} = 0.9461$

$P(X = 1) = C_{6,1}.(0.0092)^{1}.(0.9908)^{5} = 0.0527$

Then:

P(X < 2) = P(X = 0) + P(X = 1) = 0.9461 + 0.0527 = 0.9988

$P(X \geq 2) = 1 - P(X < 2) = 1 - 0.9988 = 0.0012$

0.0012 = 0.12% probability at least two of them make it inside the recycling bin.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

7 0

1 year ago

Can someone answer this please

GarryVolchara [31]

32 players = 16 matches ( 32/2)

16 players = 8 matches ( 16/2)

8 players = 4 matches (8/2)

4 players = 2 matches ( 4/2)

2 players = 1 match

16 + 8 +4 +2 +1 = 31 matches

4 0

3 years ago