Answer:
if sin (x-3) degrees = cos (2x+6) degrees, find the value of x.
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Note: sin and cos are complementary functions....
sin(x) = cos (90-x)
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Your Problem:
sin(x-3) = cos(90-(x-3))
Equation:
90-[x-3] = 2x+6
90-x+3 = 2x+6
3x = 93-6
x = 31-2
x = 29
Step-by-step explanation:
Answer:
The percent decrease is approximately 
(Don't know what you are expected to round to.)
Step-by-step explanation:
Percent change can be calculated by doing:
Then you multiply the result to covert it to a percentage.
Let's use this formula:
approximately
Now the answer as a percent is approximately.
The percent decrease is approximately
Answer:
3 students
Step-by-step explanation:
since the<em> </em>total number of students is 25,when you add those that like baseball, basketball and football the total number must be 25 but in this case it's 22 meaning 2 student liked neither.
7+5+10+x=25
x=25-22
=3
I hope this helps
Answer: 352496
Step-by-step explanation:
First, to find 20% of 440,620, you can multiply:
0.2 x 440,620 = 88,124
Then, to find the new weight of the ship, you can subtract the 20% that was just found (88,124) from the ship's original weight (440,620) to get:
440,620 - 88,124 = 352,496
Therefore, the ship's weight is now 352496.
I hope this helps!
