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3 years ago

A container is 1/3 full pf water and 1/4 full of oil. What fraction of the container is empty?

Mathematics

1 answer:

Helga [31]3 years ago

8 0

Answer

IS 2/4

Step-by-step explanation:

1/3 = 4/12 1/4 = 3/12 4/12+3/12= 6/12 = 2/4

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A ball is thrown upward from the top of a 40 foot high building at a speed of 80 feet per second. The ball's height above

tekilochka [14]

it takes 5 seconds to reach a height of 40 ft. and It takes 2.5 seconds to reach maximum height.

Let h(t) represent the height of the ball at time t.

Given that the height is given by:

h(t) = -16t² + 80t + 40

1) For the ball to reach a height 0f 40 ft, h(t) = 40, hence:

40 = -16t² + 80t + 40

16t² - 80t = 0

t(t - 5) = 0

t = 0 or t = 5

Hence it takes 5 seconds to reach a height of 40 ft.

2) The maximum height is at h'(t) = 0,

h'(t) = -32t + 80

-32t + 80 = 0

32t = 80

t = 2.5

It takes 2.5 seconds to reach maximum height.

Find out more at: brainly.com/question/11535666

5 0

3 years ago

What is the result converting 81 inches to feet?

scoundrel [369]

1 foot is 12 inches. So just divide 81 by 12.
81/12 = 6.75
So your answer is 6.75 feet.

8 0

3 years ago

Read 2 more answers

Which of the following activities are examples of data gathering

sergey [27]

What activities are the examples there’s nothing there

4 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (7, -7) and (8, -13)?

77julia77 [94]

Answer:

Slope = -6

Step-by-step explanation:

Use the slope formula to find the slope (m).

Hope this helped!

brainliest please!

4 0

2 years ago

For a sample of n = 36 that has a sample variance of 1,296, what is the estimated standard error for the sample? 6 37 36 6. 9

Liula [17]

The estimated standard error for the sample is 6

Given,

Sample size, n = 36

Sample variance, $s^{2}$ = 1296

Standard deviation, s = √1296

= 36

Standard error, SE = $\frac{s}{\sqrt{n} }$

= $\frac{36}{\sqrt{36} }$

= $\frac{36}{6}$

= 6

Concept

Sample size is the number of participants or observations included in a study. It is denoted by ‘n’

Sample variance is a measure of the degree to which the numbers in a list are spread out. It is denoted by ' $s^{2}$ '

Standard deviation is a measure of how dispersed the data is in relation to the mean. It is denoted by ‘s’

Learn more about standard deviation here:brainly.com/question/13905583

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4 0

1 year ago