True or false cosxcosy=1/2 (sin (x+y) + sin (x-y))

Marty is spending money at an average of $3 per day. after 14 days he has $68 left. write an equation to model this situation'

A sequence of transformations that maps (-4,2) to T' (-6,4) includes which transformations. Question options: A translation of 2 units left A translation of 2 unit right A translation of 2 units up A translation of 2 units down

What is the slope of y-6=-1-6/4-1 (x-1)

Find the quotient 9/83

U (x) = 4x+5, w (x) = - x+1 Find the value of w (u (5))

Law of Sines: sin (A) / a = sin (B) / b = sin (C) / c Triangle ABC has measures a = 2, b = 2, and m∠A = 30°. What is the measure of angle B? A. 15° B. 30° C. 45° D. 60°

Round 9947 to the nearest hundred

In △DEF, d = 20, e = 25, and f = 30. Find m∠F to the nearest degree.

so far this week emma has read more then 3 times as much as he read last week. he read 360 pages this week how many pages could he have read last week

The cost (in dollars) of making n birthday cakes is represented by C=24n+35. How many birthday cakes are made when the cost is $395? explain your reasoning