A- the grams of copper is total which is 128 grams.*** b- is the total amount of percent of copper which is 71.76%+9.37
Use the tangent ratio for the angle: tan 34 = b/16. Now multiply both sides by 16 to get 16 tan 34 = b or b = 10.79. Choice A above
If f(x) = 2x -6+4
Then
f(-2) = 2(-2) -2
f(-2) = -6
Answer:
The perimeter of this rectangle is 14x + 10
Step-by-step explanation:
You want to add all of the sides together.
First, you add 4x-2 and 3x+7
4x-2 + 3x+7 = 7x+5
Then, you multiply this answer by two, since there are two of each side with each value.
(7x+5) * 2
7x * 2 = 14x
5*2 = 10
So, (7x+5) * 2 = 14x + 10
14x + 10 is your final answer