Answer: x = 3, y = -6
Step-by-step explanation:
Substitute the y into the equation to get -2x=6x-24
8x=24 so x = 3. Then plug x=3 into the second equation to get y = -6
Answer:
40.6 units
Step-by-step explanation:
Arc length is given by the formula ...
s = rθ
where θ is the measure of the central angle in radians.
There are 2π radians in a circle (360°), so π radians in 180°. That can be used to convert the central angle ADB to radians for use in the formula.
∠ADB = 360° -194° = 166°
∠ADB = 166° = (166/180)π radians = 83π/90 radians
Then the arc length AB is ...
length AB = (14)(83π/90) ≈ 40.561 units
The length of arc AB is about 40.6 units.
To work out a number after using a percentage on it, you divide the starting number by 100 to find out 1% of it, then multiply it by the percentage you want to find out (in this case 25%), to get the new number
(56/100)*25 = 14
Answer:
5:2 21 i guess you divide
not so good at ratios