For trigonometry, the main components that comprise this topic are the special wave functions, sine, cosine, and tangents. You need to understand their relationships with each other, and further develop your understanding on their role in geometry.
You need to conceptually grasp how right angle triangles are formed, and how to develop angles and sides based on incomplete information, using the three main wave functions.
On top of this, you will need to understand how each wave function transforms, such as being able to graph such wave functions with a change in amplitude and period. When doing trigonometry, you will also need to understand the subtle differences between radian angles and degree angles, and how to convert radians into degrees and vice versa.
Answer:
(3, 6) or x = 3 and y = 6
Step-by-step explanation:
у = 2x, x + y = 9 (using substitution)
x + 2x = 9
3x = 9
x = 3
y = 2x
y = 2(3)
y = 6
What is the math problem? I’ll try to answer it
Problem 1
Plug (x,y) = (0,0) into the inequality
y < (2/3)x + 2
0 < (2/3)*0 + 2
0 < 0 + 2
0 < 2
The last inequality is true so we do shade the entire region that has the origin in it. In other words, the origin is in the shaded region. For this function, the origin is below the boundary line so the shaded region is below the line
Answer: choice D
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Problem 2
x = number of liters of fruit syrup
y = number of liters of water
"The total number of liters of syrup (x) and water (y) is 7 liters" so x+y = 7 which leads to y = -x+7
This graph is the line through (0,7) and (7,0). Every choice seems to have this graph shown.
"Three times the number of liters of water he mixed was 6 more than twice the number of liters of syrup" so we have the equation
3x = 2y+6
which solves to
y = (3/2)x - 3
This line goes through the points (0,-3) and (2,0)
Choice D looks cut off but it looks like choice D is the answer as its the only one with (0,-3) on the line
Answer:
D
Step-by-step explanation:
The opposite of negative is positive therefore,
the opposite of -2 is positive 2.
2 is locaded at D.
