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photoshop1234 [79]
3 years ago
8

A sample is selected from a population with a mean of u=100 and a standard deviation of o-20 what is the expected value of m and

the standard error for a sample of n=4
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
8 0
N=23...................................
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A chef uses 11 pounds of sugar in 5 weeks. Find his rate of usage in pounds per week.
Eduardwww [97]

Answer:

2.2

Step-by-step explanation:

I like to deal with the easiest part first. We know that 5 goes into 10, 2 times, then we have to figure out which decimal can make 1 when multiplied 5 times. when you multiply 0.2 by 5 you get 1 so when you multiply 2.2 by 5 you get 11.

8 0
3 years ago
The expression x/x+4 is equal to zero when
Tpy6a [65]

Answer:

x = 0

Step-by-step explanation:

x

------ = 0

x+4

Multiply each side by (x+4)

x

------ * (x+4) = 0 * (x+4)

x+4

x = 0

3 0
3 years ago
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Everything in a store is discounted by 25%. What is the sale price of a clock with a regular price of $24.60?​
Lelechka [254]

Answer:

$24.35

Step-by-step explanation:

sale price⇒ total price-discount price

s.p=$24.60-25/100                              ∴25%⇒25/100

s.p⇒$2460/100-25/100                           ∴24.60⇒2460/100

s.p⇒$24.35

           ⇒$24.35

3 0
3 years ago
A babe flies at 10 feet per second directly to a flowerbed from its hive. the bee stays at the flowerbed 12 minutes,and the flie
lina2011 [118]

The equation used to find the distance of the flowerbed from the hive is called the "time equation".

The flowerbed is 900 feet far from the hive.

<h3>What is the formula used to calculate Time Equation?</h3>
  • To calculate the time equation use the formula for time, t = d/s which means time equals distance divided by speed.

<h3>Find the height using the Time Equation?</h3>

Find the traveling time

The bee spends 12 minutes hunting down the nectar in the flowerbed. Since it was away from the hive for a total of 16 minutes, the traveling time is

16min - 12min = 4 min

Convert the Minutes to seconds

1 minute = 60 seconds

4 minutes = 4*60 = 240 seconds

Find the time each way

The total time is 240 seconds, but it is not divided evenly.

Let the time there = t

Let the time back = 240 - t

The distances are the same

r = 10 m/s

r1 = 6 m/s

t1 = t

t2 = 240 - t

dthere = dback

d = rate * time

10 m/s *t = 6 m/s (240 - t)      

Remove the brackets on the right.

10 * t = 6*240 - 6t                

Combine the like terms on the right.

10t = 1440 - 6t                        

Add 4t to both sides

10t + 6t = 1440 - 6t + 6t          

Combine

16t = 1440                            

Divide both sides by 16

16t/16 = 1440/16                    

Do the division

t = 90                                    

Find the height

d = ?

r = 10 m/s

t = 90 second

d = r*t

d = 10 * 90 = 900 feet

The flowerbed is 900 feet far from the hive.

To learn more about time equation, refer:

brainly.com/question/26046491

#SPJ4

The complete question is:

A babe flies at 10 feet per second directly to a flowerbed from its hive. the bee stays at the flowerbed for 12 minutes and then flies directly back to the hive at 6 feet per second. It is away from the hive for a total of 16 minutes.

What equation can you use to find the distance of the flowerbed from the hive?

6 0
2 years ago
Bart makes $1,000 per month plus his commission on sales. He gets 6 percent of everything he sells. If he sells an $850 mattress
mamaluj [8]
$1,051. You first multiply 850 by 0.06, or 6 percent, to get $51. then add to his monthly salary. Hope this helps
8 0
4 years ago
Read 3 more answers
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