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3 years ago

Solve the equation. check for extraneous solutions.|x+24|=-7xplease show work

1 answer:

5 0

x+27=-7x
-x . -x
27=-8x
/-8 /-8
-3.375=x

First subtract x from both sides to move x on the left to the right.
Next you have to add the negitive x to neitive 7 to get negitive 8.
After you move everything down you divide negitive 8 feom both sides of the equation to get x alone. Finailly you get -3.375=x as your final answer. If you need to round then the answer is -3.38=x. Hopefully this is right and helps

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Find x, y and z<br><br> help i don’t know what to do, it’s the last question

Ray Of Light [21]

Answer:

y=3

(bc it is the same length as its perpendicular counterpart.

x= 9 (same with Z)

(From pythagorean theorem)

6^2+3^2= (root of) 45

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Step-by-step explanation:

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2 years ago

A person calls people to ask if they would like to extend their automobile insurance beyond the normal3years. The probability th

Sonbull [250]

Using the binomial distribution, it is found that there is a 0.0231 = 2.31% probability that the first person to say yes will occur with the seventh customer.

For each person, there are only two possible outcomes, either they say yes, or they say no. The probability of a person saying yes is independent of any other person, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

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

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

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.

In this problem:

The probability that the seventh person is the first to say yes is P(X = 0) when n = 6(first six say no) multiplied by 0.37(probability the seventh say yes).
37% say yes, hence $p = 0.37$

Then:

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

$P(X = 0) = C_{6,0}.(0.37)^{0}.(0.63)^{6} = 0.0625$

$p = 0.37(0.0625) = 0.0231$

0.0231 = 2.31% probability that the first person to say yes will occur with the seventh customer.

A similar problem is given at brainly.com/question/24863377

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2 years ago

Convert 0.0001 to a power of 10.

Damm [24]

<span> 10^-4 is the answer</span>

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3 years ago

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rosijanka [135]

Answer:

Step-by-step explanation:

Amount spent on coffee = 70 - 39.56 = 30.44

One pound costs 7.61, how many will cost 30.44

7.61 : 1 = 30.44 : X

7.61 = 30.44/X

X = 30.44/7.61

X = 4

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3 years ago

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grin007 [14]

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