Answer:
Here are my hints. You can solve it yourself
1/ xy = -12 --> x = -12/y
2/ (-12/y) + y = -1 --> -(12/y) + (y²/y) = -1 --> -12 + y² = -y --> y²+y-12=0
3/ From y²+y-12=0 we can find y then use y to find x and then do your
(x+3) * (y+3)
Answer:
Option (B).
Step-by-step explanation:
Percentage change between two numbers a and b can be calculated by the formula,
% change = 
Where, (b - a) = Change in values
a = Initial value
If a = 16 and b = 20
Percentage change between 16 and 20 will be,
= 
= 
= 25%
If a = 20 and b = 16,
Percentage change = 
= 20%
Therefore, %change between 16 and 24 may be 16% or 20%.
Option (A),
= 25%
Option (B),
= 1.25 - 1 × 100
= 1.25 - 100
= -98.75%
Option (C),
= 25%
Option (D),
= 20%
Therefore, we can not use the calculation used in Option (B).
Answer:
siiiii
Step-by-step explanation:
Answer:
y=-3x-1
Step-by-step explanation:
12x+4y=-4
Slope intercept y=mx+b
Subtract 12x from both sides
4y=-4-12x
Divide each side by 4
y=-1-3x then just reorder to match slope intercept form
y=3x-1
Answer: 5' 10"
Explanation: Borrow a foot from 8 to make it 7 feet and 16 inches. Subtract 6 from 16 to get 10 inches. Subtract 2 from 7 to get 5 feet. So the answer is 5' 10".