4 years ago

Can someone help me with this?

1 answer:

tatiyna4 years ago

6 0

Yes because PROPORTIONAL means the lines start on the axis which is the zero and it also has to be in a even line so yes it is proportional

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Use the trigonometric subtraction formula for sine to verify this identity: sin((π / 2) – x) = cos x

KIM [24]

Answer:

Step-by-step explanation:

$sin (\frac{\pi}{2} - x) = cos x \\\\ sin (a - b) = sin a.cos b - sin b.cos a \\\\ sin (\frac{\pi}{2} - x) = sin \frac{\pi}{2}.cos x - sin x.cos \frac{\pi}{2} \\\\ sin \frac{\pi}{2} = 1; cos \frac{\pi}{2} = 0 \\\\ sin (\frac{\pi}{2} - x) = 1.cos x - sin x.0 \\\\ sin (\frac{\pi}{2} - x) = cos x$

I hope I helped you.

4 0

3 years ago

Who can help me with this algebra thanks for your help guys.

hjlf

31. +
34. -
To figure out more, just solve the known problem, and then go over what the answer would be to the unknown one until you find the answer that makes it true.

6 0

3 years ago

Find a number so that 97.3% of it is 36

tiny-mole [99]

So x is the number
x time 97.3%=36
percent measn parts out of 100 so
97.3%=97.3/100=9.73/10=0.973/1=0.973
x times 0.973=36
divide both sides by 0.973
x=36.9989...
answer is aprox 36.9

7 0

3 years ago

Is (

Doss [256]

Answer:

Step-by-step explanation:

2 = 3 + 1

2=4

by knowing the first equation is not equal, we can already infer that the answer is no