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3 years ago

Need help please stressing out over this problem!?!?!

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

6 0

$v = \frac{4}{3} \times \pi \times {r}^{3}$

Finding the radius,

$d = 2r, \: r = \frac{d}{2} = \frac{8}{2} = 4inches$

Plugging in our values,

$v = \frac{4}{3} \times 3.14 \times {4}^{3} = \frac{4}{3} \times 3.14 \times 64 = 267.95 {inches}^{3} \\$

Rounding to the nearest whol number,

$v = 268 {inches}^{3}$

You might be interested in

What is slope intercept form of -6+3y=-3x

shutvik [7]

Esay, first what you have to do us move -6 to the right side and now you will have 3y=-3x+6, what you want to do next is to divide 3y by both sides and your final answer is y=-x+2, hope this helps.

6 0

3 years ago

^PLZ HELP, I NEED IT BY TODAY!!! (PART B and PART C only) PLZ THANKS

Lana71 [14]

Part B (Taxi):

12 miles = 0.5 miles + (115×0.1) miles

Rate: $2.40 + (115×0.20)

= $25.40

Total cost (with tip): $25.40 + $2

= $27.40

20 miles = 0.5 miles + (195×0.1) miles

Rate: $2.40 + (195×0.20)

= $41.40

Total cost (with tip): $41.40 + $2

= $43.40

50 miles = 0.5 miles + (495×0.1) miles

Rate: $2.40 + (495×0.20)

= $101.40

Total cost (with tip): $101.40 + $2

= $103.40

Part B (Uber):

12 miles (rate) = $1 + ($1.05×12)

= $13.60

Total cost (with tip): $13.60 + $2

= $15.60

20 miles (rate) = $1 + ($1.05×20)

= $22

Total cost (with tip): $22 + $2

= $24

50 miles (rate) = $1 + ($1.05×50)

= $53.50

Total cost (with tip): $53.50 + $2

= $55.50

Part C

Uber is a better mode of transportation. This is because given the same distance travelled for both the taxi and the Uber, Uber has a lower cost compared to the taxi.

3 0

2 years ago

Suppose you want to assess student attitudes about the new campus center by surveying 100 students at your school. In this examp

sleet_krkn [62]

Answer:

Suppose you want to assess student attitudes about the new campus center by surveying 100 students at your school. In this example, the group of 100 students represents the Sample, and all of the students at your school represent the Population.

Step-by-step explanation:

Previous concepts

The term sample represent a set of observations or individuals selected from a population. And we can have a random sample (when all the individuals have the same probability of being selected) or a non random sample (when not all the individuals have probability of inclusion into the sample)

The term population represent the total of observations or individuals with a common characteristic.

If N represent the sample of the population and n the sample size we have always this inequality:

$n \leq N$