20% = 0.20
multiply original price ( $0) by 0.20 for the amount of discount then subtract it
80*0.20 = 16.00
she will save $16
80-16 = 64
she will pay $64 after the discount
Answer:
10 x 11 to the 10th power
Step-by-step explanation
1. (a) The orbital period can be calculated using the equation
T = 2πrr r
gR2
e
where r = Re + h
where re = 6378 km is the earth’s radius, r is the satellites distance
from the earth’s center and h = 205 km is the satellite’s orbital altitude, and g = 9.81m/s2
is the gravitational acceleration. With these
given values the orbital period is
Torbit = 5312.5s = 1.4757h
original coordinates are
A (0,3)
B(-1,1)
C(2,1)
so add 3 to the x's and subtract 3 from the y's
A becomes (3,0)
B becomes (2,-2)
C becomes (5, -2)
It doesn't matter which year it is. As long as it's not a leap year, it has 365 days.
If the second part has 4 slices in it and the first part is one slice, then you've
cut the whole thing up into 5 slices, and each slice is 365/5 = 73 days.
1). In the larger part, there are 4 slices x 73 days = 292 days.
2). In the shorter part, there is one slice of 73 days.
3). If the shorter part starts on January, it ends on the 73rd day
of the year. Pull out a calendar and count 'em.
The 73rd day looks like it's March 14.
