Answer:
x =15 + 30n
Step-by-step explanation:
8cos(12x)+4=-4
Subtract 4 from each side
8cos(12x)+4-4=-4-4
8cos(12x)=-8
Divide by 8
8/8cos(12x)=-8/8
cos(12x) = -1
Take the arccos on each side
arccos(cos(12x)) = arccos(-1)
12x = 180 degrees
But we can go around in a circle of 360 and get the same result
12 x = 180+360n where n is an integer
Divide each side by 12
x = 180/12 +360n/12
x =15 + 30n
Answer:
<em>She can fill 19 pots.</em>
Step-by-step explanation:
Yao Xin puts liters of potting soil in each pot.
Suppose, the number of pots Yao Xin can fill is
So, <u>the total amount of potting soil</u> in number of pots will be: liters.
Given that, she has liters of potting soil. So, the equation will be........
So, she can fill pots.
Answer:
x=1/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
22