4 years ago

Please help me on question 5!!

1 answer:

5 0

0% chance this is so because the spinner only has 8 sections meaning there is no probability for it to land on 10

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brilliants [131]

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Step-by-step explanation:

Divide 28 by 7 and get 4.

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3 years ago

Cos (pi/11)+cos (3pi/11)+cos (5pi/11)+cos (7pi/11)+cos(9pi/11)

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All you have to do is input these terms in a scientific calculator and you would immediately get the answer. However, you should note that the units are in radians. Therefore, make sure that your calculator is in the mode of radians before inputing. Then, you would get an answer of 1/2.

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3 years ago

Judy built a rectangular patio that is 9 meters wide and has a perimeter of 40 meters what is the length of Judy’s patio

loris [4]

Hi !

Judy built a rectangular patio that is 9 meters wide and has a perimeter of 40 meters what is the length of Judy’s patio ?

$l=9\;m\\L=x$

$So\;Perimeter=2(9+x)=18+2x=40\;m\\\\18+2x=40\\2x=40-18\\2x=22\\\\x=\dfrac{22}{2}\\\\\boxed{x=L=11}$

The lenght of Judy's Patio is 11 meters.

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3 years ago

The equation of a parabola is y=x2+2x–9. Write the equation in vertex form.

adoni [48]

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3 years ago

63 : 21 = __ : 3 I need help pls a quick answer would be great. Thanks!

JulijaS [17]

Answer:

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Step-by-step explanation:

To get from 21 to 3 we divided 21 by 7, therefore we have to do the same to the other side and so we get...

63 / 7 = 9

Therefore 63 : 21 = 9 : 3

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3 years ago

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