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qwelly [4]
3 years ago
8

Given that u+v=m and 1/u + 1/v = 1/f, express m in terms of u and f

Mathematics
1 answer:
Paraphin [41]3 years ago
8 0

Answer:

Step-by-step explanation:

look at this

hope it helps

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Consider a study collecting data from a population with an unknown mean and standard deviation. If the sample mean and sample st
Levart [38]

Answer:

Step-by-step explanation:

Increasing the sample size in a particular study will bring about a decrease in the standard deviations of the means.

A decrease in the sample size for a particular study will bring about an increase in the standard deviations of the means.

Whereas the population mean of the distribution of sample means is the same as the population mean of the distribution being sampled from meaning that the population of the distribution of sample means never changes.

8 0
3 years ago
2(x+1)=3x-x+2 help fast and show work please
Stells [14]

Answer:

0=0

Step-by-step explanation:

2(x+1)=3x-x+2\\\\\mathrm{Add\:similar\:elements:}\:3x-x=2x\\2\left(x+1\right)=2x+2\\\\\mathrm{Expand\:}2\left(x+1\right):\quad 2x+2\\2x+2=2x+2\\\\\mathrm{Subtract\:}2\mathrm{\:from\:both\:sides}\\2x+2-2=2x+2-2\\\\Simplify\\2x=2x\\\\\mathrm{Subtract\:}2x\mathrm{\:from\:both\:sides}\\2x-2x=2x-2x\\\\Simplify\\0=0\\\\\mathrm{True\:for\:all}\:x

5 0
4 years ago
NIE
Vaselesa [24]

Hi!

Please see the attached image for your answer with explanation.

Have a great day!

4 0
3 years ago
What is the sum of the first 11 terms of the arithmetic series in which a1= -12 and d=5?
SVEN [57.7K]
Hello :  
the terme general is : an = a1 +(n-1)d
 a11 = a1+(11-1)×5
a11 = -12+50
a11 = 38
<span>the sum of the first 11 terms is : S11 = (11/2)(a1+a11)
</span>S11 = (11/2)(-12+38)
S11 = 143
3 0
3 years ago
Anyone know the answer?
ANTONII [103]
PKE is a triangle and its interior angles therefor sum to 180deg:

P+K+E=180
90+(x+6)+2x=180
96+3x=180
3x=84
x=\frac{84}{3}=28deg
5 0
4 years ago
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