Answer:
The expression that represents his total time is given by "t = 7.5/s" where s is his speed against the wind.
Step-by-step explanation:
In order to solve this problem we will assign a variable to Curtis speed on the first leg of the trip, this will be called "s". Since the speed on the first part is "s" and the speed on the second part is 20% higher, then the speed on the second part is "1.2s". Each leg of the course is 9 miles long, therefore the time it took to go each way is given by:
time = distance/speed
First part:
t1 = 9/s
Second part:
t2 = 9/1.2s = 7.5/s
The expression for the whole course is the sum of each, so we have:
t = t1 + t2
t = 9/s + 7.5/s
t = (9 + 7.5)/s = (16.5)/s
X-intercept: (38/7,0)
Y-intercept; (0,-38)
2y = -4
Y= -2
X= -4
Don’t even thank :))
Answer:
i think the answer is 125.66 (or 125.6 if you use 3.14 as pi)
Step-by-step explanation:
First find the area of the blue circle by multiplying pi times the radius squared to get 380.13 (or 379.94 if multiplied 3.14)
Then find the area of the orange circle by doing the same thing to get 254.47
(or 254.34 if multiplied by 3.14)
finally subtract 380.13-254.47 to get 125.66.
(or 125.6)
