Answer:
18.100m
Step-by-step explanation:
this is the correct
Answer:
1094
Step-by-step explanation:
The sum of terms of a geometric series is given by ...
Sn = a1·(r^n -1)/(r -1)
You want the sum for ...
a1 = 2, r = -3, n = 7
Filling in the numbers, we get ...
S7 = 2·((-3)^7 -1)/(-3-1) = 2(-2188)/(-4)
S7 = 1094
Answer:
Plane 1 travels 20 miles farther than plane 2 in an hour.
Step-by-step explanation:
To compare the distances, compare the speed of each plane. The speed of plane 1 is 290 miles per hour in d(t) = 290t.
Plane 2 travels 540 miles over 2 hours. Its speed is 540/2 = 270 miles per hour.
Plane 1 will travel 20 miles farther than plane 2 in an hour.
Your stupid.....................................................................................
Answer:
Perpendicular: -2/5
Parallel: 5/2
Step-by-step explanation:
The slope-intercept formula is y=mx+b, where mx is the slope.
So in the equation y = 5/2x, 5/2 is understood as the slope.
To find a perpendicular slope you have to do the opposite (sign), reciprocal (flip denominator and numerator) of the original number.
Therefore 5/2 become negative, and then the numerator and denominator switch sides. (-2/5)
Parallel slope is the exact same as the original one so nothing changes. (5/2)