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2 years ago

What is 1/2 a a decimal

Mathematics

2 answers:

pashok25 [27]2 years ago

6 0

Answer: .5

Explanation: 50/100

Lena [83]2 years ago

5 0

Answer:

0.5

Step-by-step explanation:

just divide 1 by half

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Simplify the expression. 3y^3-2[4y-y(y-3)]-[2y(y+1)-3y(y^2-1)]

Sever21 [200]

Answer: 6y^(3) - 19y

Step-by-step explanation:

5 0

2 years ago

What is a decimal equivalent of the fraction 32/45

saul85 [17]

Answer:

0.71. with the bar notation over the 1

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Estimate a 20% tip on a dinner bill of $161.86 by first rounding the bill amount to the nearest ten dollars.

MAXImum [283]

Answer:

See below

Step-by-step explanation:

If you just want the tip

$0.20*161.86\approx\frac{1}{5}*160=32$

If you want the total bill

$1.20*161.86\approx160+32=192$

7 0

1 year ago

A real estate agent has 19 properties that she shows. She feels that there is a 30% chance of selling any one property during a

netineya [11]

Answer:

$P(X \geq 5)=1-P(X$

We can find the individual probabilities:

$P(X=0)=(19C0)(0.3)^0 (1-0.3)^{19-0}=0.00114$

$P(X=1)=(19C1)(0.3)^1 (1-0.3)^{19-1}=0.0092$

$P(X=2)=(19C2)(0.3)^2 (1-0.3)^{19-2}=0.0358$

$P(X=3)=(19C3)(0.3)^3 (1-0.3)^{19-3}=0.0869$

$P(X=4)=(19C4)(0.3)^4 (1-0.3)^{19-4}=0.1491$

And replacing we got:

$P(X \geq 5) = 1-[0.00114+0.009282+0.0358+0.0869+0.149]= 0.7178$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=19, p=0.3)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

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

And we want to find this probability:

$P(X \geq 5)$

And we can use the complement rule:

$P(X \geq 5)=1-P(X$

We can find the individual probabilities:

$P(X=0)=(19C0)(0.3)^0 (1-0.3)^{19-0}=0.00114$

$P(X=1)=(19C1)(0.3)^1 (1-0.3)^{19-1}=0.0092$

$P(X=2)=(19C2)(0.3)^2 (1-0.3)^{19-2}=0.0358$

$P(X=3)=(19C3)(0.3)^3 (1-0.3)^{19-3}=0.0869$

$P(X=4)=(19C4)(0.3)^4 (1-0.3)^{19-4}=0.1491$

And replacing we got:

$P(X \geq 5) = 1-[0.00114+0.009282+0.0358+0.0869+0.149]= 0.7178$

4 0

2 years ago

Please help and thank you

Anna11 [10]

2 servings because one serving is 4%, so you would need would need to double that, or multiply it by two.

3 0

3 years ago