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3 years ago

5

A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter system to a trimester system. E

stimate a 95% confidence interval for the percentage of students who prefer a quarter system.

1 answer:

Nataly [62]3 years ago

6 0

You can do it make your brain on

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2":12"::6":24" Is this a true proportion?

Nata [24]

No, it's not a function because 2*6=12, but 6*4=24. In order for it to be an actual proportion, it would have to have the same number multiplied to it. Hope this helps!

7 0

3 years ago

Given that the following two geometric series(meetkundige reekse) are covergent 1+x+x²+x³+... And 1-x+x²-x³+... Determine the va

Oksanka [162]

The sets are (1,-1) or (-1,1)

Lets see

Take until 4terms

#1

$\\ \rm\longmapsto S_4=1+1+1^2+1^3=1+1+1+1=4$ (1,-1)

$\\ \rm\longmapsto S_4=1+(-1)+(-1)^2+(-1)^3=1-1+1-1=0$ (-1,1)

#2

$\\ \rm\longmapsto S_4=1-(-1)+(-1)^2-(-1)^3=1+1+1+1=4$ (1,-1)

$\\ \rm\longmapsto S_4=1-1+(1)^2-1^3=1-1+1-1=0$ (-1,1)

Hence verified

Another set can be (0,0)

Proof:-

$\\ \ast\rm\longmapsto S_3=1+0+0^2=1$

$\\ \ast\rm\longmapsto S_3=1-0+0^2=1$

Hence verified.

3 0

3 years ago

What is the measure of angle 1?

S_A_V [24]

Answer:

44

Step-by-step explanation:

The angle subtends the arc with measure of 88 degrees, so it has to be 88/2 which is 44.

3 0

3 years ago

Plz help me and explain it.

Schach [20]

The second windsurfer is going faster cuz 5 meters = 16.4042.

6 0

3 years ago

Help!! I’ll give points and brainliest

Evgen [1.6K]

I don't know this. Sorry. Good luck

5 0

2 years ago