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Julli [10]
3 years ago
13

Rectangle ABCD has a perimeter of 32 units and will be rotated about line k. What is the three-dimensional solid created?

Mathematics
2 answers:
murzikaleks [220]3 years ago
5 0

Answer:

cylinder

Step-by-step explanation:

KiRa [710]3 years ago
4 0

Answer:

The correct answer is cylinder and 6 units

Step-by-step explanation:

Got it right online

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Explain the difference between observed frequency and expected frequency as it relates to Chi-Square test.
emmasim [6.3K]

Answer:

Step-by-step explanation:

A Chi-square test is used to test the test of independence between rows and columns, contingency tables. It is a test related to frequencies. The observed frequency is a given statistical frequency known as the actual frequency,  the expected frequency is known as the theoretical frequency is derived from the study by using the sum total of the row and total in the column divided by their corresponding sample size.

5 0
3 years ago
The standard diameter of a penny is 0.75 in. and the standard
Blababa [14]

Answer: .045

Step-by-step explanation:.75=.750 so, 750-705=.045

Hope this helps!

6 0
3 years ago
In rectangle PQRS, SQ = 78, PS = 30, and mPRS = 23°. Find SR.
kondor19780726 [428]
\cos (23)=\frac{sr}{78}\rightarrow78\cdot\cos (23)=SR=67.20

7 0
1 year ago
Follow the steps to finish solving the equation –3x + 18 = 7x.
marta [7]
-3x + 18 = 7x
3x + (-3x) + 18= 7x + 3x
18 = 10x

18 10x
— = —
10 10


1.8 = x
4 0
3 years ago
The slope of a line is undefined, and the x-intercept is -7. what is the equation of the line?​
Andreyy89

The equation of line with undefined slope and x - intercept -7 is x = -7

<em><u>Solution:</u></em>

Given that the slope of line is undefined and the x intercept is -7

To find: Equation of line

If a line has undefined slope, then it is a vertical line

A vertical line has undefined slope because all points on the line have the same x-coordinate

<em><u>The equation of a vertical line always takes the form:</u></em>

x = b

where, "b" is the x - intercept

Given x - intercept is -7

<em><u>Thus the equation of line is:</u></em>

x = -7

Therefore, the equation of line is found

7 0
3 years ago
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