Which choice is equivalent to the product below?Vovino
O A. 4,/25
B. 2V50
O C. 5,2
O D. 10
SUBMIT
Which choice is equivalent to the product below? Vovino O - 1

Answers

Answer 1
Answer:

√(2) . √(10) . √(5)  \n  =  √(2 * 10 * 5) \n  =  √(100)  \n  = 10

Answer:

D.10

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer 2
Answer: 10

2*10*5= 100
Square root of 100 is 10

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Approximate the data using the line y = 0.25x + 3. Find the data point that has the residual with the greatest absolute value. Give that data point and its associated residual. Data point: (20, 6); Residual = -2.00 Data point: (15, 5); Residual = 6.75 Data point: (5, 3); Residual = -1.25 Data point: (10, 10); Residual = 4.50

Answers

Solution: We are given data points and associated residuals:

Data Point           Residual          Absolute value(Residual)

(20,6)                     -2.00                      2.00

(15,5)                       6.75                       6.75

(5,3)                        -1.25                       1.25

(10,10)                     4.50                       4.50


From the above absolute value(Residual) column, we clearly see the data point (15,5) has the residual with greatest absolute value of 6.75.

Therefore, the data point and its associated residual is:

(15,5)  and 6.75    

Answer:

Data Point: (10,10); Residual = 4.50

Please help me ASAP also I dont remember learning this in algebra 1

Answers

Answer:

The correct answer should be B!

Step-by-step explanation:

"A rational number is a number that can be express as the ratio of two integers. ... Likewise, any integer can be expressed as the ratio of two integers, thus all integers are rational."

"A integer is any number that is not either a decimal or a fraction (however, both 2.000 and 2/2 are integers because they can be simplified into non-decimal and non-fractional numbers), this includes negative numbers. A whole number is any positive number(0 through infinity) (including non-integers)"

"Common Examples of Irrational Numbers

Pi, which begins with 3.14, is one of the most common irrational numbers. ...

e, also known as Euler's number, is another common irrational number. ...

The Square Root of 2, written as √2, is also an irrational number."

Thus leading me to the conclusion that B is the correct answer!

-Please Mark Brainliest!!! :D

A paddle boat rents for $10 plus $8 per hour. How much does it cost to rent a paddle boat for h hours? Write an expression and show your work.

Answers

10 + 8h

10 would be the initial cost and would be unchangeable, leaving it as a constant. The $8 on the other hand increases based on the number of hours, making it the constant with the variable next to it.

Hope this helps! 

Eric has attended summer camp for 5 weeks every summer for 6 years. How many days has he attended camp in 6 years?

Answers

Answer:

210 days

Step-by-step explanation:

There are 7 days in a week and since he goes for 5 weeks every summer, he goes for 35 days every year. Since he has attended for 6 years, multiply 35 by 6 to get 210, the number of days he has attended camp for.

Answer:

210 days

Step-by-step explanation:

Eric has attended 5 weeks summer camp for a year.

They are asking for 6 years

∴6*5 = 30 weeks Eric had totally in 6 years.

But they want the answer in days:

1 week      = 7 days

30 weeks = 30*7    = 210 days

(If this helps you I am happy, if there is a mistake let me know.)

Your welcome

A researcher records the repair cost for 8 randomly selected refrigerators. A sample mean of $57.89 and standard deviation of $23.69 are subsequently computed. Determine the 95% confidence interval for the mean repair cost for the refrigerators. Assume the population is approximately normal. Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Answers

The question is incomplete! the complete question along with answer and step by step explanation is provided below.

Question:

A researcher records the repair cost for 8 randomly selected refrigerators. A sample mean of $57.89 and standard deviation of $23.69 are subsequently computed. Determine the 95% confidence interval for the mean repair cost for the refrigerators. Assume the population is approximately normal.

Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Step 2 of 2 : Construct the 95% confidence interval. Round your answer to two decimal places.

Given Information:  

Sample mean repair cost  = $57.89

Sample standard deviation = σ = $23.69

Sample size = 8

Confidence level = 95%

Required Information:  

step 1: critical value = ?

step 2: 95% confidence interval = ?

Answer:

step 1: critical value = 2.365

step 2: 95% confidence interval = ($38.08, $77.70)

Step-by-step explanation:

Since the sample size is less than 30 and the standard deviation of the population is also unknown therefore, we can use the t-distribution to find the required confidence interval.

The confidence interval is given by

CI = \bar{x} \pm MoE\n\n

Where \bar{x} is the mean repair cost and MoE is the margin of error that is given by

$ MoE = t_(\alpha/2)((s)/(√(n) ) ) $ \n\n

Where n is the sample size, s is the sample standard deviation, and t_(\alpha/2)  is the t-score corresponding to 95% confidence level.

The t-score corresponding to 95% confidence level is

Significance level = 1 - 0.95 = 0.05/2 = 0.025

Degree of freedom (DoF) = n - 1 = 8 - 1 = 7

From the t-table at α = 0.025 and DoF = 7

t-score = 2.365

Therefore, the critical value that should be used in constructing the confidence interval is 2.365

MoE = 2.365\cdot (23.69)/(√(8) ) \n\nMoE = 2.365\cdot 8.3756\n\nMoE = 19.808 \n\n

So the required 95% confidence interval is

CI = \bar{x} \pm MoE\n\nCI = 57.89 \pm 19.808\n\nCI = 57.89 - 19.808 \: and \: 57.89 + 19.808\n\nCI = \$38.08 \: and \:\:\$77.70\n

Therefore, we are 95% confident that the mean repair cost for the refrigerators is within the range of ($38.08, $77.70)

Given: R=2m KL = LM = KM
Find: V and
Surface Area of the cone

Answers

Answer:

The volume of the cone is 3π≈9.42.

The surface area of the cone is 9π≈28.27.

Step-by-step explanation:

If we make a section of the sphere and the cone, we have a equilateral triangle inscribed in a circle (see picture attached).

We only know the numerical value of the radius R, that is 2 m.

From the picture, we have

\bar{KM}=2\cdot R\cdot cos(30^(\circ))=2R(√(3))/(2)=√(3)R= 2√(3)

The radius of the base of the cone is

r=\bar{KO}=\bar {KM}/2=(2√(3))/2=√(3)

The height of the cone can be calculated as:

h=\bar{LO}=\bar{KL}\cdot cos(30^(\circ))=(2√(3))*(√(3)/2})=3

The volume of the cone can be calculated as:

V=(1)/(3)\pi r^2h=(1)/(3)\pi (√(3))^2*3=3\pi\approx9.42

The surface area of the cone is:

S=S_(base)+S_(face)=\pi r^2+\pi r l=\pi r^2+\pi r (\bar{KL})\n\nS=\pi(√(3))^2+\pi √(3)*2√(3)=3\pi+2\pi*3=(3+6)\pi=9\pi\approx 28.27