If ABC Toys sold 25 “Little Drummer Boys” in June 2012 and ABC Toys has seen a 20% increase in sales of “Little Drummer Boys” ev
2 answers:
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Answer: option d
Step-by-step explanation:
Remember the identity:
The inverse of the tangent function is arctangent. You need to use this to calculate the angle "S":
Knowing that: you need to find the measure of the angle "S" , (which is the adjacent side) and
(which is the opposite side), you can sustitute values into
Then, you get that the measure of "S" rounded to the nearest tenth is:
Answer:
39. r = 13.4
40. m = 12
Step-by-step explanation:
39. Given the equation, , to solve for r, the following are the correct steps to take to arrive at the solution:
(given)
Add 0.8 to both sides of the equation (addition property of equality)
(this is where the error occurred.)
40. The correct steps to take in solving the equation, is as follows:
(given)
Multiply both sides by 3 (multiplication property of equality)
(this is where the error occurred. This is what we should have at this line/step)
(dividing both sides by -1)