3 years ago

X^2 -18x +81=0 factor it

Mathematics

1 answer:

nasty-shy [4]3 years ago

6 0

Answer:

x=9

Step-by-step explanation:

81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.

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Rina8888 [55]

Answer:

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Step-by-step explanation:

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16t^2=10000

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How would you write this equation in terms of sin and cos as well as simplify it from there?

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Try this option:
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3 years ago

The hour hand of a clock moves −30° every hour. How many degrees does it move in 2&1/5 hours?

ad-work [718]

Answer:

ok is very easy

Step-by-step explanation:

so 1/5 of an hour is 12 mins

and 2 is 2 hrs so that 120 mins

now add 120+12=132

132 x -30 degrees

The answer to that is 132 x -30 =

-3960 sorry if its wrong and if you get a second try put -69.1150384 rad

I think sorry if you get it wrong have a good day

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3 years ago