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3 years ago

Y = f(x) = -3^x Find fx) when x = 0.

Mathematics

1 answer:

Vanyuwa [196]3 years ago

3 0

Answer: 1

Step-by-step explanation:

substitute x with 0 in the polynomial so we get,

-3^x

= -3^0

= 1 ( because any number raised to 0 is 1)

Hope it helps:)

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At a snack food manufacturing facility, the quality control engineer must ensure that all products feature the appropriate expir

Helga [31]

Answer:

0.1108 = 11.08% probability that there are exactly 3 faulty candy bars among the seven.

Step-by-step explanation:

The bars are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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

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

In this question:

60 total candies means that $N = 70$

12 are faulty, which means that $k = 12$

Seven are chosen, so $n = 7$

What is the probability that there are exactly 3 faulty candy bars among the seven?

This is $P(X = 3)$ . So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,70,7,12) = \frac{C_{12,3}*C_{48,4}}{C_{60,7}} = 0.1108$

0.1108 = 11.08% probability that there are exactly 3 faulty candy bars among the seven.

5 0

3 years ago

Can somebody plz help on this homework?

exis [7]

Basically, if the words in the word bank are similar or opposing or cause and effect add them to the bank

3 0

3 years ago

1. What is the approximate volume of the cone? Use 3.14 for π.

iren2701 [21]

The volume of a cone is V = (1/3)*pi*h*r^2
V = (1/3)*3.14*8*12^2 = 1206 cu.cm

4 0

3 years ago

quester [9]

Answer:

800

Step-by-step explanation:

4 0

3 years ago

The members of a cooking club are making cakes, which they will sell at a street fair for $8 apiece. It cost $30 for a booth at

Olin [163]

They need to sell 5 pieces to cover their expenditures (have a profit of zero).

<h3>How many cakes will they have sold?</h3>

We know that the costs are:

$30 for the booth at the fair.
$2 for each piece of cake they sell.

And the revenue is:

$8 for each piece of cake.

So, the profit (the difference between the revenue and the cost) for selling x pieces is:

p(x) = $8*x - $2*x - $30

p(x) = $6*x - $30

We want to find the value of x such that p(x) = 0, then:

0 = $6*x - $30

x = $30/$6 = 5

They need to sell 5 pieces to cover their expenditures (have a profit of zero).

If you want to learn more about profit:

brainly.com/question/23103804

#SPJ1

5 0

2 years ago