Answer:
growth, decay, growth, decay, decay
Step-by-step explanation:
If you raise 1 to any positive power you get 1.
If you raise a number greater than 1 to any positive power, you get more than 1. For example, 1.5^2 = 2.25, and 2.25 > 1.
If you raise a number between 0 and 1 to a positive power, you get a number that is less than 1. For example, 0.5^2 = 0.25.
Now look at each example. If the quantity raised to a power is greater than 1, it will give an answer greater than 1, so it is exponential growth.
If the quantity raised to a power is between 0 and 1, the result is less than 1, and it is exponential decay.
A. 1.3^t
1.3 > 1; this is growth.
B. 0.95^t
0.95 is between 0 and 1, so this is decay.
C. 1.03^t
1.03 > 1; this is growth
D. 0.73^t
0.73 is between 0 and 1, so this is decay.
E. 0.25^t
0.25 is between 0 and 1, so this is decay.
Answer: 244 degrees
==================================
The formula we can use is
L = (a/360)*2*pi*r
where,
L = arc length
a = central angle in degrees
r = radius
-----------
In this case, r = 34 and L = 145. We want to find the angle 'a'.
L = (a/360)*2*pi*r
145 = (a/360)*2*pi*34
145 = (a/360)*68pi
145*360 = a*68pi
52200 = a*68pi
a*68pi = 52200
a = 52200/(68pi)
a = 244.3496
a = 244
Answer:
option A
Step-by-step explanation:
Answer:
150 pages
Step-by-step explanation:
want to read 2,000 pages
already read 1,250 pages
Number of pages left to read
= 2000-1250
= 750
Rest of the reading spread over 5 weeks
wants to read same number of pages each week
Number of pages that need to be read each week over 5 weeks
= Number of pages left to read / total number of weeks
=750 / 5
= 150
He will need to read 150 pages a week.
Answer:
27
Step-by-step explanation:
r = 9
s = 6
r^2
= r x r
= 9 x 9
= 81
13s
= 13 x 6
= 108
13s - r^2
= 108 - 81
= 27