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den301095 [7]
3 years ago
6

A line passes through the points (6,5) and (2,2) .

Mathematics
1 answer:
Rashid [163]3 years ago
7 0
First is yes
Second is no
Third is no
Fourth is no
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A pyramid has a base with a demension 5 inches by 7 inches .The height of the pyramid is unknown .If the volume of the pyramid i
Ulleksa [173]

Answer:

9 inches

Step-by-step explanation:

The volume of a pyramid is given as:

V = \frac{l* w*h}{3}

where l = length of base of pyramid

w = width of base of pyramid

h = height of pyramid

The volume of the cylinder is already known ( 105 in^3 ) and the other two dimensions are known as 5 in and 7 in.

From the formula of the volume of the pyramid, the height of the pyramid is given as:

h = \frac{3V}{l*h}

Hence, the height of the pyramid is:

h = \frac{3 * 105}{5 * 7}\\ \\h = \frac{315}{35} = 9in

The pyramid's height is 9 inches.

7 0
3 years ago
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In 2011, a train carried 8% more passengers than in 2010. In 2012 , it carried 8% more passengers than in 2011. Find the percent
hjlf

Answer:

there was a 16% increase since 2010 to 2012

Step-by-step explanation:

lets say the train had 100 people on it in 2010 and in 2011 it had an 8% increase which then brings you to 8 plus 100 and you get 108.

Now in 2012 there was an increase 8%, so you will add 8 to your previous answer 108 and receive 116. So now there was 16 more passengers in 2012 than in 2010. Transfer the 16 passengers into 16% and you now have your answer.

3 0
3 years ago
determine the sample sieze erequired to estimate teh mean score on a standardizes test within 4 [pints of the trrue mean with 98
Andreas93 [3]

Answer: Minimum sample size = 110

Step-by-step explanation:

Formula to find minimum sample size :

n=(\dfrac{z\times s}{E})^2 , where z = critical z-value for confidence level, s= sample standard deviation , E = margin of error

Given: E= 4 , s= 18

Critical z-value for 98% confidence = 2.327

So,  n=(\dfrac{2.327\times18}{4})^2

=(\dfrac{41.886}{4})^2\\\\=(10.4715)^2=109.65231225\approx110

Minimum sample size = 110

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3 years ago
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The area of section 1 is 12 square feet, the area of section 2 is 40 square feet, and the area of section 3 is 6 square feet.
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3 years ago
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3n + 9(2n – 5) = -3 n =
Jobisdone [24]

Answer:

n=15/8

Step-by-step explanation:

3 0
3 years ago
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