You would subtract 20 and 2
Twenty Subtract Two
Equals Eighteen
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- Shelly O
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Answer:
When you take the derivative of -tan(xy) you have to account for the chain rule in the xy.
Step-by-step explanation:
Your answer should be set up as such.
0 - sec^2(xy) ((y)+(x*dy/dx)) = 0
y + x*dy/dx = 0
dy/dx = -y/x
Answers and Step-by-step explanation:
Question 8:
Since angle BCD is opposite angle DAB, this means that they are similar angles as the shape is a parallelogram, and so BCD is 115 degrees, or answer D
Question 3:
We can use process of elimination on this question - The first choice is all squares are rhombuses, which is true. The second question is all rectangles are squares, which is not true, therefore the answer is B
Question 4:
m angle 2 is equal to 106, as it is similar to question 8, and angle 3 is equal to 360 (the total degrees of the shape) - 106 - 106, then divided by 2 and divided by 2 again.
This will equal to angle 3 being 37 degrees, and the answer will be C
Question 5:
We can draw a rectangle from this graph. We can also tell that, in theory, the diagonals are the same, that rules out answer B, and also 5x-5 = x+11
We can then find out x.
+5 on both sides
5x = x+16
-x on both sides
4x = 16
x = 4.
Therefore, each of the sides will be 4+11 = 15, and the answer being C
Answer: (Z-4)/12
Step-by-step explanation:
(Z-4)/(4+8)
4+8 equals 12
(Z-4)/12