Answer:
105
Step-by-step explanation:
7*15=105 length times width
Answer:
60 seconds
Step-by-step explanation:
When Ying reaches his lowest altitude, his velocity is 0.
The velocity, v(x) is the tiome-derivative of D(x).
(This was done by using chain rule)
Equating v(x) to 0,
Answer:
45°
Step-by-step explanation:
(2−2n)−(5n−27) >0
distribute
2-2n -5n +27 >0
combine like terms
-7n +29 >0
subtract 29 from each side
-7n> -29
divide by -7 (flips the inequality)
n < -29/-7
n <4.14
natural numbers are 1,2,3,4......
n must be 1,2,3,4
Answer: 1,2,3,4
4x - 2y - z = - 5 ______×2x - 3y + 2z = 3 _______×13x + y - 2z = - 5 ______×1
8x - 4y - 2z = - 10x - 3y + 2z = 33x + y - 2z = - 5
8x - 4y - 2z = - 10(+) x - 3y + 2z = 3_____________9x - 7y = - 77y = 9x + 7y = 9/7x + 1
x - 3y + 2z = 3(+) 3x + y - 2z = - 5_____________4x - 2y = - 24x - 2(9/7x + 1) = - 24x - 18/7x - 2 = - 210/7x = 0x = 0
y = 9/7(0) + 1y = 1
0 - 3(1) + 2z = 32z = 6z = 3
