The expression 4x^2 represents - (4)(x)(x)
Answer:
The first one is -1/2
the second one is x+2y-27=0
Answer:
7
Step-by-step explanation:
= AC × CB
= ( x + 9 ) 9
144 = 9x + 81
9x = 144 - 81
9x = 63
x = 63 ÷ 9
x = 7
Cos(x°) = (√3)/2
cos⁻¹[(√3)/2] = x°, that means x° = 30°
y=1/3x-1
We know straight away that the y intercept is -1 from the equation.
y-intercept: (0,-1)
To find the x intercept plug in 0 for y in the equation.
y=1/3x-1
0=1/3x-1
1/3x=1
x=3
x-intercept: (3,0)
answers: y-intercept: (0,-1) and x-intercept: (3,0)