Step-by-step explanation:
radius=d/2
19/4 /2
19/8
2 2/8
• r= 19/8
volume = ⅓πr²h
⅓×22/7×19/8×19/8×7½
3971/192
Answer:
1) x= -1
2) x= 36.7° (1 d.p.)
Step-by-step explanation:
Please see attached picture for full solution.
Answer:
x + y = 3 (1)
55x + 40y = 135 (2)
Step-by-step explanation:
Since x to represent the number of hours driving on a highway and y to represent the number of hours driving on other roads and the total time for driving is 3 hours,
x + y = 3 (1)
Also, You drive 55 miles per hour on highways and 40 miles per hour on the rest of the roads, the distance moved on highways is 55x and the distance moved on the rest of the roads is 40y (since distance = speed × time).
Since the total distance moved is 135 miles, we have
55x + 40y = 135 (2)
So, the system of linear equations that represent the situation is
x + y = 3 (1)
55x + 40y = 135 (2)
264 jumps in 4 minutes
132 jumps in 2 minutes
66 jumps in 1 minute
The correct answer is x+b/a
f^{-1}(x)=\frac{x+b}{a}
