Answer:
38.5 = x
Step-by-step explanation:
9/ (x+2) = 2/9
Using cross products
9*9= 2(x+2)
Distribute
81 = 2x+4
Subtract 4 from each side
81-4 = 2x+4-4
77= 2x
Divide each side by 2
77/2 = 2x/2
38.5 = x
Answer:
There are only 3 differences perform
Step-by-step explanation:
I. If x is negative, y is negative then the answer is possitive
eg. x is -2, y is -3
-2 × -3 = 6
II. If x is negative, y is positive then the answer is negative
eg. x is -1, y is 2
-1 × 2 = -2
III. If x is possitive, y is possitive then the answer is positive
eg. x is 2, y is 5
2 × 5 = 10
Alt. No matter how long x, y, z, a, b there always apply only 3 rules above. Multiply or Devide are the same rule.
Ask me for anything :D
Answer:
810 Feet Approximately.
Step-by-step explanation:
Answer:
x = -1, -9.
x = 5, 9.
Step-by-step explanation:
x^2 + 10x = -9
x^2 + 10x + 9 = 0
(x + 1)(x + 9) = 0
x = -1, -9.
x^2 - 14x + 40 = -5
x^2 - 14x + 45 = 0
(x - 5)(x - 9) = 0
x = 5, 9.
