The equation is not well formatted so I assumed it is
Answer:
1.0472 m/s
Step-by-step explanation:
If , the rate at which the depth is changing is the time-derivative of D(t);
At 2 am, t = 2 hours after midnight.
Substitute this in the last equation.
Answer:I need to score between 75 and 100 to get a B.
Step-by-step explanation:
To get the number I must score in the 5TH Test, the total of the first four test is added together
68+82+87+89 = 326
However making the number I must score X
There is need to find a new average
And the total number of score is now equal to 5, so we generate the equation.
(326 + X)/5=80
326+X= 400
X= 400-326
X= 74
However he needs to score equal or above 74 and 100 to get a B.
Check by using sum of angles of triangle = 180°
- 20+45 < 180 so third angle will make it 180 which means it's possible to draw
- 120+50 = 170< 180 so third angle being 10 will complete the triangle
- 90+100 = 190 > 180 so third angle being (-10) is impossible for the triangle so it can't be possible
The answer should be 123/500