Review the proof of Tangent (A minus B) = StartFraction tangent A minus tangent B Over 1 + (tangent A) (tangent B) EndFraction. tan(A – B) =

Step 1: Equals StartFraction sine (A minus B) Over cosine (A minus B) EndFraction

Step 2: Equals StartFRaction sine A cosine B minus cosine A sine B Over cosine A cosine B + sine A sine B EndFraction

Step 3: Equals StartStartFraction StartFraction sine A cosine B minus cosine A sine B Over blank EndFraction OverOver StartFraction cosine A cosine B + sine A sine B Over blank EndFraction EndEndFraction

Step 4: Equals StartFraction tangent A minus tangent B Over 1 + (tangent A) (tangent B)

To complete step 3, which expression must fill in each blank space?

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

what does x eaqual

step-by-step explanation:

answer: 177/8

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.