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3 years ago

What is -7x - 8 = 27

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

7 0

Answer:

$- 7x - 8 = 27 \\ \\ - 7x = 27 + 8 \\ \\ - 7x = 35 \\ \\ x = \frac{35}{7} \\ \\ x = 5$

gizmo_the_mogwai [7]3 years ago

3 0

Answer:

x = -5

Step-by-step explanation:

-7x - 8 = 27

-7x - 8 + 8= 27 + 8

-7x = 35

x = 35 ÷ (-7)

x = -5

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uysha [10]

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So,

$\lim_{x \rightarrow \frac{3\pi}{2}}{f(x)=f(\frac{3\pi}{2})=\frac{1}{3\sin{\frac{3\pi}{2}}}=-\frac{1}{3}$

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4 years ago

If a car agency sells 50% of its inventory of a certain foreign car equipped with side airbags, ﬁnd a formula for the probabilit

antiseptic1488 [7]

Answer:

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

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

And the distribution is given by:

$P(X)= (4CX) (0.5)^x (1-0.5)^{4-x}$

With $X=0,1,2,3,4$

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

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Solution to the problem

Let X the random variable of interest "number of cars with side airbags among the next 4", on this case we now that:

$X \sim Binom(n=4, p=0.5)$

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 the distribution is given by:

$P(X)= (4CX) (0.5)^x (1-0.5)^{4-x}$

With $X=0,1,2,3,4$

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3 years ago

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Fiesta28 [93]

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3 years ago

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tamaranim1 [39]

Answer:

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Step-by-step explanation:

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At x = 3 , y= 0

So , x - intercept is 3

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3 years ago

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Step-by-step explanation:

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3 years ago