3 years ago

Simplify the expression by combining like terms. 2x + 4y + 6 + 2y - 5 + 3x

Mathematics

1 answer:

gtnhenbr [62]3 years ago

8 0

I think the answer is 5x + 6y + 1

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algol13

Answer:

B. x^2

Step-by-step explanation:

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A cab company charges a $3 boarding rate in addition to its meter which is $2 for every mile. How much does it cost to ride this

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Step-by-step explanation:

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4 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

5. A company sells small, colored binder clips in packages of 20 and offers a money-back guarantee if two or more of the clips a

SOVA2 [1]

Answer:

a) Binomial.

b) n=20, p=0.01, k≥2

The probability hat a package sold will be refunded is P=0.0169.

Step-by-step explanation:

a) We know that

the defective probability is constant and independent.
the sample size is bigger than one subject.

The most appropiate distribution to represent this random variable is the binomial.

b) The parameters are:

Sample size (amount of clips in the package): n=20
Probability of defective clips: p=0.01.
number of defective clips that trigger the money-back guarantee: k≥2

The probability of the package being refunded can be calculated as:

$P(x\geq2)=1-(P(x=0)+P(x=1))\\\\\\P(x=k) = \dbinom{n}{k} p^{k}q^{n-k}\\\\\\P(x=0) = \dbinom{20}{0} p^{0}q^{20}=1*1*0.8179=0.8179\\\\\\P(x=1) = \dbinom{20}{1} p^{1}q^{19}=20*0.01*0.8262=0.1652\\\\\\P(x\geq2)=1-(0.8179+0.1652)=1-0.9831=0.0169$

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4 years ago

If a = 3 and b = 5, what is the value of a+. 62? 9 + 25 84 6 + 10 82

Harman [31]

Answer:

a+62=65

Step-by-step explanation:

if a=3 then 62+3=65

4 0

3 years ago

Simplify the expression by combining like terms. 2x + 4y + 6 + 2y - 5 + 3x ￼

Simplify the expression by combining like terms. 2x + 4y + 6 + 2y - 5 + 3x