Answer:
a = 7
Step-by-step explanation:
8a - 4 = 3 + 7a export like terms to the same side of the equation
8a - 7a = 3 + 4 add like terms (the expressions will change sign when exported like when it's a negative expression it will be positive and vice versa.)
a = 7
120° will be found on in the second quadrant of the unit circle. Specifically, the reference angle will be 60°. This is because the angle measurement starts from the positive x axis, and rotates 120° counter-clockwise. The angle formed at this point between the line and the x-axis (negative direction) is 60°.
The special right triangle formed will have a hypotenuse of 1, and a reference angle of 60°.
We know that the adjacent line, the line opposite the 30° angle, will be 1/2 the hypotenuse, or -1/2. Negative because it goes in the negative x direction.
The opposite end, or vertical side, will be √3/2.
sin(120) = opposite/hypotenuse = √3/2 ÷ 1 = √3/2
cos (120) = adjacent/hypotenuse = (-1/2) / 1 = -1/2
tan (120) = opposite / adjacent = (√3/2) / (-1/2) = -√3
Answer:
Step-by-step explanation:
Because the coordinates for x = 0 is (0,-2) so that's your y- intercept.
Then if you all you have to do is make sure that you have the correct slope.
So i just made a table on paper and started going up and seeing what slope i'd need to match the table on the screen.
<u> 30a² </u> <u> 42a³ </u> <u> 54a³b </u>
2 · 3 · 5 ·× a · a<u /> 2 · 3 · 7 · a · a · a 2 · 3 · 3 · 3 · a · a · a · b
GCF = 2 · 3 · a · a
GCF = 6a² <u />
Answer:
where's the equations and expressions..?
