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Maurinko [17]
3 years ago
9

What is the surface area of a cylindrical ring where the diameter of the cross section is 6.3 in and the center line has a lengt

h of 48 in? A. 529.86 in2 B. 256.22 in2 C. 950.02 in2 D. 849.73 in2
Mathematics
2 answers:
Ber [7]3 years ago
6 0
The surface area of the cylindrical ring is given by
πdh
where d is the diameter and h is the height:
π•6.3•48 = 950.02
The answer is C. 950.02 in^2
katovenus [111]3 years ago
3 0

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Diameter of cylinder = 6.3 inches

Radius of cylinder is given by

\frac{6.3}{2}\ in

Height of cylinder = 48 in.

As we know the "Surface area of cylinder":

Area=2\pi rh\\\\Area=2\times \frac{22}{7}\times \frac{6.3}{2}\times 48\\\\Area=950.02\ in^2

Hence, Option 'C' is correct.

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The data set below has a lower quartile of 13 and an upper quartile of 37.
Levart [38]

The dataset 78 is an outlier of the dataset

<h3>How to determine the true statement about the outlier?</h3>

The dataset is given as:

1, 12, 13, 15, 18, 20, 35, 37, 40, 78

Where

Q1 = 13

Q3 = 37

The boundaries of the outliers are given as:

L = Q1 - 1.5 * (Q3 - Q1)

U = Q3 + 1.5 * (Q3 - Q1)

Substitute the known values in the above equation

L = 13 - 1.5 * (37 - 13) = -23

U = 37 + 1.5 * (37 - 13) = 73

This means that the data elements outside the range -23 to 73 are outliers.

78 is outside this range

Hence, 78 is an outlier of the dataset

Read more about outliers at:

brainly.com/question/3631910

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7 0
2 years ago
If ac =14 find the value of x then find ab and bc
Igoryamba

Answer:

If B is between A and C, AB = x, BC = 2x + 2, and AC = 14, find the value of x. Then find AB and BC.

Step-by-step explanation:

AB=x

BC = 2x + 2BC=2x+2

AC =14AC=14

Required

Determine x, AB and BC.

Since B is between A and C;

AB + BC = ACAB+BC=AC

Substitute x for AB; 2x + 2 for BC and 14 for AC

x + 2x + 2 = 14x+2x+2=14

3x + 2 = 143x+2=14

Collect Like Terms

3x = 14 - 23x=14−2

3x = 123x=12 '

x = \frac{12}{3}x=

3

12

x = 4x=4

Substitute 4 for x in

AB = xAB=x

BC = 2x + 2BC=2x+2

AB = 4AB=4

BC = 2(4) + 2BC=2(4)+2

BC = 8 + 2BC=8+2

BC = 10BC=10

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2 years ago
Write an algebraic expression to represent the following verbal expression
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The answer is B. They are saying to cube the difference therefore you have (x-43) cubed
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ou buy a gallon of milk that costs $3.50. The milk is discounted for 10% off. You also have to pay tax of 6.25% on the discounte
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Answer:

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Step-by-step explanation:

very simple!

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3 years ago
A Hamilton multitouch watch was originally priced at $644. At a closing of the Alpha Omega Jewelry Shop, the watch is being redu
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Answer:

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