3 years ago

~PLEASE HELP ASAP OFFERING 10 POINTS~

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

6 0

At every 1.0 unit, boiling point decreases 1.8 unit, which means the slope m = -1.8.

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Cot x sec^4 x=cot x + 2tan x + tan^3 x

tigry1 [53]

Recall the Pythagorean identity:

$\sin^2x+\cos^2x=1$

Divide through by $\cos^2x$ and you get

$\tan^2x+1=\sec^2x$

On the left hand side of your equation, use this expansion for $\sec^4x$ :

$\cot x\sec^4x=\cot x(\sec^2x)^2=\cot x(\tan^2x+1)^2=\cot x\tan^4x+2\cot x\tan^2x+\cot x$

and simplify using the fact that $\cot x=\dfrac1{\tan x}$ . You end up with

$\cot x\tan^4x+2\cot x\tan^2x+\cot x=\tan^3x+2\tan x+\cot x$

so this is an identity and holds for all $x$ in an appropriate domain.

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3 years ago

Twice the difference of a number and 9 equals 7

Oxana [17]

2(x-9)=7 solve and you would get the answer

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3 years ago

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Help this is due today!!!!!!!

oee [108]

The answer I believe is 5 because 2 vases hold 10 red roses and 5 yellow roses. But since the person has 3 vases but it has to be the same amount as the first person. They would both have 30 flowers in their vases. But then each of the vases has 6 red roses so you just do 30 divided by 6 and you get 5.

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3 years ago

Find five solutions for the linear equations 2x + y =5

kondaur [170]

Answer:

Step-by-step explanation:

x = 2, y = 1

x = 1, y = 3

x = 0, y = 5

x = -1, y = 7

x = -2, y = 9

Hope that helps!

-Sabrina

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2 years ago

8/9= blank=3/11=blank find an equivlant fraction

zavuch27 [327]

8/9= 16/18 and 3/11=6/22

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3 years ago