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Ivan
3 years ago
9

A cylindrical cup and a cone both have a radius of 5 cm and a height of 8 cm. What is the approximate difference between the vol

ume of the cup and the volume of the cone? A 133 cm B. 267 cm C. 419 cm D. 628 cm​
Mathematics
1 answer:
Debora [2.8K]3 years ago
8 0

Answer:

419

Step-by-step explanation:

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Determine the number of terms, n, given the geometric series 1 3 9 27 ... and sn=3280.
lina2011 [118]

The number of terms, 'n' is 8

<h3 /><h3>How to determine the number of terms</h3>

Let's determine the common ratio;

common ratio, r = 3/1 = 3

The formula for sum of geometric series with 'r' greater than 1 is given as;  Sn = a( r^n - 1) / (r - 1)

n is unknown

Sn = 3280

Substitute the value

3280 = 1 ( 3^n - 1) / 3- 1

3280 = 3^n -1 /2

Cross multiply

3280 × 2 = 3^n - 1

6560 + 1 = 3^n

6561 = 3^n

This could be represented as;

3^8 = 3^n

like coefficient cancels out

n = 8

Thus, the number of terms, 'n' is 8

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5 0
1 year ago
What is 8/11 - 7/11 in simplest form
NARA [144]

Answer:

It is 1/11

Step-by-step explanation:

Apply the rule a/c +- b/c = a+-b/c

=8-7/11

=1/11

8 0
3 years ago
Read 2 more answers
During a sale, a dress is marked down from a selling price of $60 to a sale price of $57. What is the percent markdown?
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Answer: 05%

Step-by-step explanation:

60-57=3

3/60=0.05

0.05x100=5

5 0
3 years ago
Point J is on line segment IK. Given JK = 2x – 1, IK = 3x + 2,
Serhud [2]

Answer:

JK=7

Step-by-step explanation:

From the line segment, since J is on it ,it means the line segment is

represented as I J K

from this illustration, we can say that the longest part of the line segment is from I to K

this means that, IJ +JK =IK

making JK the subject,

JK= IK - IJ

but from the question, JK=2x-1 , IK=3x+2 and IJ=3x-5

substituting them in the expression,

2x-1 =3x+2 -(3x-5)

solving for x

2x-1 =3x+2-3x+5

2x-1 =0+7

2x-1 =7

2x=1+7

2x=8

dividing through by 2

2x/2 =8/2

x=4

but the question says we should find the numerical value for JK

but from the line segment,

JK=2x-1

but now we know the value of x to be 2

so substituting it in the formula

JK= 2(4)-1

JK=8-1

JK=7

therefore, the numerical value for JK is 7

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3 years ago
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