Answer:
(-1, 4)
Step-by-step explanation:
11x+5y=9
11x+3y=1
subtract side-by-side
- 5y-3y= 9-1
- 2y=8
- y=4
- 11x+20=9
- 11x= -11
- x=-1
Answer:
1.26 feets
Step-by-step explanation:
Given the following :
Vertex (0, 0)
Focus of reflector = 6 feets
Extension = 5.5 feets
Equation to obtain conic section of a parabola:
(x - h)² = 4p(y - k)
Vertex (0, 0)
h =0 ; k = 0, p = 6, x = 5.5
(5.5 - 0)² = 4*6(y - 0)
30.25 - 0 = 24(y - 0)
30.25 = 24y
y = 30.25 / 24
y = 1.26
Hence, depth of reflector = 1.26 feets
Answer:
- 1
Step-by-step explanation:
using the rule of logarithms
log x + log y ⇔ log(xy), hence
AB = A + B = 2 - 3 = - 1
If this helps at all, the problem can equal out to 0 if x=7, hope this helps. :)
Answer:
Excluded values are 3 and -4
Step-by-step explanation:
To simplify the expression multiply to create a common denominator.
Multiply the first fraction by (x-3) and the second fraction by (x+4).
Excluded values are values which make the denominator 0. This means (x-3)(x+4) cannot be 0. This means x cannot be 3 or -4. These are excluded values.