You could write it as a fraction (3/4) or you could say "3 to 4".
Answer:
A
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Here (h, k) = (- 2, 3) and r = 3 , then
(x + 2)² + (y - 3)² = 9 ← expand left side using FOIL
x² + 4x + 4 + y² - 6y + 9 = 9 ( subtract 9 from both sides )
x² + y² + 4x - 6y + 4 = 0 → A
Line L's slope intercept form is
y = 4x + 7
It's point slope form is
y - 3 = 4 (x - -1)
You can check the point slope form and match it with the slope intercept form:
y - 3 = 4 (x - -1)
y - 3 = 4x + 4
y = 4x + 7
y = 4x + 7 = y = 4x + 7
Answer:
Step-by-step explanation:
let side of cube=x cm
volume=x³ cm³
again side=(x-3) cm
volume=(x-3)³ cm³
x³-(x-3)³=1385
(a³-b³)=(a-b)(a²+ab+b²)
(x-x+3){x²+x(x-3)+(x-3)²}=1385
3(x^2+x²-3x+x²-6x+9)=1385
3(3x²-9x+9)=1385
9x²-27x+27=1385
9x²-27x+27-1385=0
9x²-27x-1358=0
Well the first part is 27 but the second part is adding 60 to 21 which is 81. dont forget that!
