All categories

2 years ago

What is the appropriate metric unit for measuring the capacity of a water cooler?

Mathematics

2 answers:

Montano1993 [528]2 years ago

8 0

Liters is the best way

vodomira [7]2 years ago

7 0

The best way to measure a volume of this size in Liters. This is a metric unit. There are 1000 liters in one cubic meter.

You might be interested in

Which type of sampling method is being employed in the following example? A study is being conducted of all schools in Gwinnett

ExtremeBDS [4]

Answer:

It is cluster

Step-by-step explanation:

because it is a group of people

4 0

3 years ago

Which monomial is a perfect cube? I I A 1x3 B 3x3 C 6x3 D 9x3

harkovskaia [24]

Answer:

option D 9x³

Step-by-step explanation:

the monomial 9x³ comes from (3x)³, which gives, 3×3×3×x×x×x= 9x³

9 is 3 times 3 and x³ is 3 times x. So here, 9x³ is a perfect cube

6 0

2 years ago

9400 dollars is placed in an account with an annual interest rate of 6.25%. To the nearest tenth of a year, how long will it tak

liubo4ka [24]

Answer:

$t=64.2\ years$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=?\ years\\ P=\$9,400\\ A=\$47,100\\r=6.25\%=6.25/100=0.0625$

substitute in the formula above

$47,100=9,400(1+0.0625t)$

solve for t

$t=[(47,100/9,400)-1]\0.0625$

$t=64.2\ years$

6 0

2 years ago

Which statement below gives the best reason for considering personal needs, values, and circumstances in selecting a bank accoun

inn [45]

Answer:

the answer is b

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Weight of a rock: In a geology course, students are learning to use a balance scale to accurately weigh rocks. One student plans

statuscvo [17]

Answer:

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

Step-by-step explanation:

What is Confidence Interval?

The confidence interval represents an interval that we can guarantee that the target variable will be within this interval for a given confidence level.

The confidence interval is given by

$CI = \bar{x} + t_{\alpha/2}(\frac{\sigma}{\sqrt{n} } ) \\$

Where $\bar{x}$ is the mean weight $\sigma$ is the standard deviation $t_{\alpha/2}$ is the critical value from t-table and n is the sample size.

The term $t_{\alpha/2}(\frac{\sigma}{\sqrt{n} } )$ is known as margin of error.

As the sample size is decreased the corresponding margin of error increases which results in wider confidence interval which means smaller precision.

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

We can say with 95% confidence that the true mean weight of the rock is within the interval of (25.2, 29.1).

7 0

2 years ago