The sinusoid makes a complete oscillation (i.e. 360°) every 3 seconds. So, in one second it makes 1/3 of a turn, leading to 360°/3 = 120°.
So, the correct answer is the last one.
Because all are a multiple of 2, you can factor out 2, 2(-x^2+x+2)=0
Answer:
hi
Step-by-step explanation:
To write a slope intercept equation you need the slope and the y intercept which is b. The slope of y=x is 1 and to find a perpendicular slope you flip it and make it the opposite sign so in this case is would still be 1\1 but now it will be negative so your slope is -1 and you plug in 2 for x and 2 for y into the equation y=mx+b and m=your slope (which is -1) to find the value of b. so you get y=-1(2)+b. When you solve you get b=4 and then rewrite the intercept slope equation which is y=mx+b and plug in your slope for m and 4 for b so your final answer is y=-1x+4
let the price of a slice of pizza be 'p' and that of soft drink be 's'
6 p + 5 s = 31.60............equation (i)
5 p + 4 s = 26.02............equation (ii)
6 p + 5 s = 31.60............×4
5 p + 4 s = 26.02............×5
24 p + 20 s = 126.4
25 p + 20 s = 130.1
p = 3.7
Answer = 3.7 Dollars
