Ok so for Letter F the answer is going to be x=2 or y=-2 depending if you’re trying to find x or y.
Answer:
y = 24√3, or approximately 41.6
Step-by-step explanation: √3 36
Here the ratio 36/y = cosine of 30 degrees = ------- = ------
2 y
Cross-multiplying yields (√3)y = 72, so y = 72/√3, or 72√3/3, or y = 24√3
He arrived 1 hour earlier.
The formula for distance in this case is
d=rt, where d is distance, r is rate (speed) and t is time.
The first leg of his trip, he traveled at 60 mph for 5 hours:
d = 60(5) = 300
He traveled 300 miles during the first part of his trip.
He had originally planned to travel 50 mph for 20 hours:
d = rt = 50(20) = 1000
His entire trip is 1000 miles.
The second part of the trip is then represented by
1000-300 = 50t
700 = 50t
Divide both sides by 50:
700/50 = 50t/50
14 = t
He traveled 5 hours for the first part and 14 hours the second part, for a total of 19 hours.
This is 20-19 = 1 hour earlier than he'd planned.
Answer:
a. y = 3/2x - 12
Step-by-step explanation:
Slope is y = mx + b
Slope or m = 3/2
y-intercept or b = -12
Substitute m for 3/2 and b for -12 then the answer would be y = 3/2x - 12
