3 years ago

Is a systematic random sample valiad or not

1 answer:

8 0

Answer:

Step-by-step explanation: being random if the periodic interval is determined beforehand and the starting point is random

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The height of Dougal is 1.84 metres. The height of Seb is 1.7 metres. Write the height of Dougal as a fraction of the height of

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Answer:

No se bro suerte con eso V:

Step-by-step explanation:

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3 years ago

Which formula can be used to describe the sequence below? 29, 9, 3, 1, 1/3,.....

Maksim231197 [3]

Answer:

Answer is $3^{4-n}$

Step-by-step explanation:

It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio $\frac{1}{3}$

and general formula for given sequence is given by $a (r)^{n-1}$

so plugging the value of a and r ,we get

$27 ([tex]\frac{1}{3}$ )^{n-1}[/tex]

$3^3(\frac{1}{3} )}^{n-1}$

$3^{4-n}$

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3 years ago

If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with t

svp [43]

A full rotation is 360 degrees so the required angle is 360/12 = 30 degrees.

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3 years ago

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What is the total area of this composite figure rounded to the nearest hundredth?

masha68 [24]

Answer:

B) 176 ft²

Step-by-step explanation:

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3 years ago

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Find the area of the shaded region.

earnstyle [38]

There are four parts of a circle, so you have to find out the area of the circle:-

10 cm=Radius

$10^{2}$ =100

$\pi$ =3.14

3.14*100=314 $cm^{2}$

Now, find the area of the square box:-

Since half the side of the square is 10 cm, the total length of one side is 2*10 which is 20 cm.

Area=S*S

=20*20=400 $cm^{2}$

Now subtract the area of the box from the area of the square:-

400-314= 86 $cm^{2}$

That is the area of the shaded part.

Happy to help you!

8 0

3 years ago