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2 years ago

Some studies show that high school students are more successful when the school day begins after 9 am. To test this theory,

Mathematics

1 answer:

mrs_skeptik [129]2 years ago

6 0

Answer:

i think that the answer is b

Step-by-step explanation:

because there doing an experiment in a controlled environment just to see what happen and if it works or if its true.

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0.955 rounded to the nearest 10th of and inch

TiliK225 [7]

The answer to this is .960

3 0

3 years ago

Read 2 more answers

Dividends Per Share Seventy-Two Inc., a developer of radiology equipment, has stock outstanding as follows: 60,000 shares of cum

Sergeeva-Olga [200]

The dividends per share on each class of stock for each of the four years for Seventy-Two Inc. are as follows:

<h3>Cumulative Preferred Stock:</h3>

Year 1 Year 2 Year 3 Year 4

Distributed Dividends $32,000 $40,000 $36,000 $36,000

Outstanding shares 60,000 60,000 60,000 60,000

Dividend per share $0.53 $0.67 $0.60 $0.60

<h3>Common Stock:</h3>

Year 1 Year 2 Year 3 Year 4

Distributed Dividends $0 $32,000 $44,000 $64,000

Outstanding shares 400,000 400,000 400,000 400,000

Dividend per share $0 $0.08 $0.11 $0.16

<h3>Data and Calculations:</h3>

3% Cumulative Preferred Common Stock

Outstanding shares 60,000 400,000

Par Value $20 $25

Total value $1,200,000 $10,000,000

Annual dividend $36,000 ($1,200,000 x 3%)

Year 1 Year 2 Year 3 Year 4

Distributed Dividends $32,000 $72,000 $80,000 $100,000

Cumulative Preferred $32,000 $40,000 $36,000 $36,000

Common Stock $0 $32,000 $44,000 $64,000

Learn more about dividends at brainly.com/question/25845157

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3 0

2 years ago

An English professor assigns letter grades on a test according to the following scheme. A: Top 14% of scores B: Scores below the

NeX [460]

Answer:

Grades between 62 and 64 result in a D grade.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 71.9, \sigma = 7.8$

Find the numerical limits for a D grade.

D: Scores below the top 84% and above the bottom 10%

So below the 100-84 = 16th percentile and above the 10th percentile.

16th percentile:

This is the value of X when Z has a pvalue of 0.16. So X when Z = -0.995.

$Z = \frac{X - \mu}{\sigma}$

$-0.995 = \frac{X - 71.9}{7.8}$

$X - 71.9 = -0.995*7.8$

$X = 64$

10th percentile:

This is the value of X when Z has a pvalue of 0.1. So X when Z = -1.28.

$Z = \frac{X - \mu}{\sigma}$

$-1.28 = \frac{X - 71.9}{7.8}$

$X - 71.9 = -1.28*7.8$

$X = 62$

Grades between 62 and 64 result in a D grade.

6 0

3 years ago

Find h if V = 30.45 ft3, l = 6.3 ft, and w = 2.5 ft.

jok3333 [9.3K]

The height (h) of the rectangular prism is: 1.9 feet.

<h3>How to Find the Volume of a Rectangular Prism?</h3>

A rectangular prism has a length (l), height (h), and a width (w). The volume of the rectangular prism is calculated using the formula given as: V = (length)(width)(height).

Given the following parameters:

Volume of the rectangular prism = 30.45 ft^3,

Length (l) = 6.3 ft,

Width (w) = 2.5 ft.

Height of the rectangular prism (h) = ?

Plug in the values

(6.3)(2.5)(h) = 30.45

15.75h = 30.45

15.75h/15.75 = 30.45/15.75

h ≈ 1.9 ft

Learn more about volume of rectangular prism on:

brainly.com/question/12917973

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4 0

1 year ago

What is the circumference of the circle? d=44in

julsineya [31]

Answer:

138.23 in

hope this helps

have a good day :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers