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3 years ago

Chose the correct property

Mathematics

1 answer:

viva [34]3 years ago

5 0

Answer:

Associative Property Of Multiplication

Step-by-step explanation:

The associative property says that the way numbers are grouped doesn't change the answer of the problem.

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What impression do you have of the narrator, Nick Carraway, from his narration and actions?

Anni [7]

Nick is easy to share to since he and his decision are imperfect. We can trust Nick’s account of the facts but we cannot completely trust his decisions of the other characters in the story – he is unfair.His unfairness led him to ridicule Tom and acclaim Gatsby. Gatsby, for Nick signifies a fundamental blamelessness and uprightness, notwithstanding the fact that his life is externally built upon a lie. It is secretly built upon a boy’s dream of the future of personal prominence. This dream speaks to Nick even as he learns to recklessness it for himself.

6 0

3 years ago

A professor wishes to discover if seniors skip more classes than freshmen. Suppose he knows that freshmen skip 2% of their class

KIM [24]

Answer:

We conclude that seniors skip more than 2% of their classes at 0.01 level of significance.

Step-by-step explanation:

We are given that a professor wishes to discover if seniors skip more classes than freshmen. Suppose he knows that freshmen skip 2% of their classes.

He randomly samples a group of seniors and out of 2521 classes, the group skipped 77.

Let p = percentage of seniors who skip their classes.

So, Null Hypothesis, $H_0$ : p $\leq$ 2% {means that seniors skip less than or equal to 2% of their classes}

Alternate Hypothesis, $H_A$ : p > 2% {means that seniors skip more than 2% of their classes}

The test statistics that will be used here is One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of seniors who skipped their classes = $\frac{77}{2521}$

n = sample of classes = 2521

So, test statistics = $\frac{\frac{77}{2521} -0.02}{{\sqrt{\frac{\frac{77}{2521}(1-\frac{77}{2521})}{2521} } } } }$

= 3.08

The value of the test statistics is 3.08.

Now at 0.01 significance level, the z table gives critical value of 2.3263 for right-tailed test. Since our test statistics is more than the critical value of z as 2.3263 < 3.08, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that seniors skip more than 2% of their classes.

6 0

4 years ago

PLEASE HELP!

bagirrra123 [75]

Answer: c) $30,799.45

Step-by-step explanation:

Assuming there are 52 weeks in a year, the rate and time would be converted to;

Rate = 8%/52 = 8/52%

No. of periods = 9 years * 52 weeks = 468

The amount Mr Mantle would have is;

= 15,000 * ( 1 + 8/52%) ⁴⁶⁸

= $30,799.45276

= $30,799.45

5 0

3 years ago

Plzzz helpppppp!!!!!!

Tema [17]

Answer:

Step-by-step explanation:

Given

The attached graph

Required

Find h(3)

The formula to use in solving this is:

$y = h(x)$

Substitute 3 for x

$y = h(3)$

From the attached graph, the value od x = 3 points to the value of y = 1.

So, we have:

$y = 1$

5 0

3 years ago

A bakery sells bagels at two different rates. When a customer buys fewer than 12 bagels, each one costs $1.25. When a customer b

Sav [38]

Answer:

1.25b when b < 12 , 1b & then 0.75 b when b > 12

Step-by-step explanation:

Price for b bagels = Price x Quantity

* Less than 12 bagels bought, cost $1.25 per bagel

So, price for b bagels, when (b < 12) = 1.25b

* 12 or more than 12 bagels bought, cost $1 upto first 12 bagels & 0.75b on each additional bagel

So, price for b bagels, when (b = 12) = b

So, price for b bagels, when (b > 12) = b + 0.75b' , where b' denotes extra b beyond 12

8 0

3 years ago