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3 years ago

If f(x)= -3x -6and f(n)=9, what is the value of n?

Mathematics

1 answer:

Alchen [17]3 years ago

7 0

Try to use photo math it gives you the work and answer

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I need to solve: -3(8x); x = 1/4. Using substitution ro find the value of expression

marishachu [46]

First, find the value of the expression within the parentheses, which is 8x. Since x=1/4, 8x=8/4 or 2. Next, multiply this value by -3. -3*2=-6

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3 years ago

Let the probability of success on a Bernoulli trial be 0.26. a. In five Bernoulli trials, what is the probability that there wil

andreyandreev [35.5K]

Answer:

0.3898 = 38.98% probability that there will be 4 failures

Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

Let the probability of success on a Bernoulli trial be 0.26.

This means that $p = 0.26$

a. In five Bernoulli trials, what is the probability that there will be 4 failures?

Five trials means that $n = 5$

4 failures, so 1 success, and we have to find P(X = 1).

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

$P(X = 1) = C_{5,1}.(0.26)^{1}.(0.74)^{4} = 0.3898$

0.3898 = 38.98% probability that there will be 4 failures

4 0

3 years ago

Ax+16=b−3x what is a= and what does b= ?

Vlad1618 [11]

Answer:

Slope=4

x−intercept=−

=−4

b−intercept=

=16.0000

Step-by-step explanation:

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4 years ago

Huong had $23 to spend on six notebooks. After buying them she had $11. How much did each notebook cost?

Nataly [62]

23-11=12
She spent $12 on notebooks, and she bought six notebooks.
12/6=2

Each notebook costed $2.

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3 years ago

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Raul tossed a coin and spin a spinner with three equal sections. Based upon the results, what is the probability of tossing a ta

Shkiper50 [21]

H is the answer for the question

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3 years ago