There are 3 quarters, 5 dimes, and 2 nickels, in a jar. P(dime then dime without replacement)?

Over what interval is the function in this graph increasing?

Umnica [9.8K]

Answer:

B. -4 ≤ x ≤ 1.

Step-by-step explanation:

The function is increasing when the slope of the line is rising to the right.

Each division on the x axis has a value of 2

7 0

3 years ago

The total cost is y = 150 + 55x. Which Statement represents the meaning part of the function

kaheart [24]

Answer:

You started with 150.

5 0

3 years ago

Jeffrey is playing a game with the two spinners below: An image of two spinners is shown. The first spinner has four sectors lab

Murljashka [212]

We can first calculate all the possible sums and then determine the set of possible outcomes.
Possible sums are:
1+2 = 3
1+4 = 5
1+6 = 7
1+8 = 9
2+2 = 4
2+4 = 6
2+6 = 8
2+8 = 10
3+2 = 6
3+4 = 7
3+6 = 9
3+8 = 11
4+2 = 6
4+4 = 8
4+6 = 10
4+8 = 12

From the above possibilities, the outputs would belong to the set:
<span>{3, 4, 5, 6, 7, 8, 9, 10, 11, 12}</span>

3 0

3 years ago

A machine making computer chips isn't working correctly, and 5% of the computer chips it makes are defective. If an inspector ch

Rainbow [258]

Answer:

0.25% probability that they are both defective

Step-by-step explanation:

For each computer chip, there are only two possible outcomes. Either they are defective, or they are not. The probability of a computer chip being defective is independent of other chips. So we use the binomial probability distribution to solve this question.

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.

5% of the computer chips it makes are defective.

This means that $p = 0.05$

If an inspector chooses two computer chips randomly (meaning they are independent from each other), what is the probability that they are both defective?

This is P(X = 2) when n = 2. So

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

$P(X = 2) = C_{2,2}.(0.05)^{2}.(0.95)^{0} = 0.0025$

0.25% probability that they are both defective

4 0

3 years ago

Mrs. Leonard is planting a flower garden. She has 18 marigolds for every 6 petunias.

tangare [24]

Answer:

B) 1:3

Step-by-step explanation:

Let's layout the information given firstly.

Marigolds= 18

Petunias= 6

In ratios, you need to follow the arrangement, for say in this question they say petunias go first, so the ratio should involve the value 6 first.

Therefore, it will give you, 6:18.

Now, you need to simplify this ratio. Just simplify it as it were, a fraction. Divide each number by a common factor, in this case, it is 6. Once you've done that, you'll get 1:3.

Hope this helped.

8 0

2 years ago

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There are 3 quarters, 5 dimes, and 2 nickels, in a jar. P(dime then dime without replacement)?​

There are 3 quarters, 5 dimes, and 2 nickels, in a jar. P(dime then dime without replacement)?