If the width of a square piece of material is 3x – 2, what is the area?

Mathematics

1 answer:

Zinaida [17]3 years ago

3 0

The answer is B because its a square so all sides are equal and then you factor

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g Make a decision about the given claim. Use only the rare event rule, and make subjective estimates to determine whether event

vagabundo [1.1K]

Answer:

There is not sufficient evidence to support the claim.

Step-by-step explanation:

The claim to be tested is:

The mean respiration rate (in breaths per minute) of students in a large statistics class is less than 32.

To test this claim the hypothesis can be defined as follows:

H₀: The mean respiration rate of students is 32, i.e. μ = 32.

Hₐ: The mean respiration rate of students is less than 32, i.e. μ < 32.

The sample mean respiration rate of students is 31.3.

According to the claim the sample mean is less than 32.

The sample mean value is not unusual if the claim is true, and the sample mean value is also not unusual if the claim is false.

Thus, there is not sufficient evidence to support the claim.

7 0

3 years ago

You have a party at your house. mAfter the party, you have 0.50.5 liters of juice remaining. How many milliliters of juice do yo

inn [45]

Answer:

A liter is 1000 mL so half of 1000 = 500

500 mL is the answer!Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown?

mars1129 [50]

Answer:

2c^2 - 2c - 3

Step-by-step explanation:

Next time, please share the answer choices. Thank you.

Group together the 'c' terms in 2 + 7c – 4c2 – 3c + 4:

2 + 4c and -4c^2 + 4 Then we have:

-4c^2 + 4c + 6

We should reduce this by factoring -2 out of all three terms:

2c^2 - 2c - 3 This is the desired quadratic in standard form.

3 0

3 years ago

Travelers who fail to cancel their hotel reservations when they have no intention of showing up are commonly referred to as no-s

notsponge [240]

Answer:

a) 0.0523 = 5.23% probability that at least two of the four selected will turn to be no-shows.

b) 0 is the most likely value for X.

Step-by-step explanation:

For each traveler who made a reservation, there are only two possible outcomes. Either they show up, or they do not. The probability of a traveler showing up is independent of other travelers. This means that the binomial probability distribution is used 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.

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