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vampirchik [111]

2 years ago

12

Which of the following is the most appropriate unit to describe the rate at which people are entering a theme park? (2 points)

2 answers:

azamat2 years ago

4 0

D,people per hour because the dependent quantity is the people

Kisachek [45]2 years ago

3 0

D) People per hour, because the dependent quantity is the people

The dependent quantity is the quantity that relies on other variables of the situation. Therefore, the hours it takes relies on the amount of people that come into the theme park. People will continuously come into the park, they do not depend on anything. This is why it can not be C.

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Expressed in simplified radical form what is the value of √r-√16r when r=2

Ket [755]

Answer:

- 3 $\sqrt{2}$

Step-by-step explanation:

using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

simplifying $\sqrt{16r}$ when r = 2

= $\sqrt{32}$

= $\sqrt{16(2)}$

= $\sqrt{16}$ × $\sqrt{2}$ = 4 $\sqrt{2}$ , hence

$\sqrt{2}$ - 4 $\sqrt{2}$ = - 3 $\sqrt{2}$

5 0

2 years ago

Suppose AC = 48, find the value of x. Then, find the length of AB and the length of BC.<br> 1

gladu [14]

Answer:

2x-4+3x+2=48

5x-2=48

5x=48+2

5x=50

x=10

Step-by-step explanation:

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6 0

2 years ago

[tex]\sqrt{x} 196<br> can someone help me

Maslowich

Answer:

14

Step-by-step explanation:

√196

Calculate the square root of 196 and get 14.

14

8 0

2 years ago

Read 2 more answers

Suppose you pick and replace marbles from a bag, one after another. If the bag contains 3 red marbles, 3 white marbles, and 6 bl

alexandr402 [8]

Answer:

I think you forgot part of the question

Step-by-step explanation:

8 0

2 years ago

A survey of an urban university (population of 25,450) showed that 870 of 1,100 students sampled supported a fee increase to fun

Katen [24]

Answer:

95% confidence interval for the proportion of students supporting the fee increase is [0.767, 0.815]. Option C

Step-by-step explanation:

The confidence interval for a proportion is given as [p +/- margin of error (E)]

p is sample proportion = 870/1,100 = 0.791

n is sample size = 1,100

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value (z) at 5% significance level is 1.96.

E = z × sqrt[p(1-p) ÷ n] = 1.96 × sqrt[0.791(1-0.791) ÷ 1,100] = 1.96 × 0.0123 = 0.024

Lower limit of proportion = p - E = 0.791 - 0.024 = 0.767

Upper limit of proportion = p + E = 0.791 + 0.024 = 0.815

95% confidence interval for the proportion of students supporting the fee increase is between a lower limit of 0.767 and an upper limit of 0.815.

5 0

2 years ago