Answer:
500
Step-by-step explanation:
80-20=60
60/0.12=500
An = a1 + (n - 1)d, n=1000, a1=24, d=38-31=7 substitute
a(1000) = 24 + (1000 - 1)*7=24+999*7=7017
Answer:
Step-by-step explanation:
(x2 - y2)2 + (2xy)2 = (x2 + y2)2
1. Let x = 2 and y = 1 .
2. x must be greater than y
- as the sides of a triangle must be positive.
We can enter any positive integer values for x and y as long as x > y because we are dealing with an identity.
3. Then substituting, we have
(2^2 - 1^2)^2 + (2*2*1)^2 = (2^2 + 1^2)^2
3^2 + 4^2 = 5^2
9 + 16 = 25
25=25
So the triple is 3,4 and 5.
4. At least one leg must be even because one term (2xy) must be even - multiplying by 2 always gives an even value.
Answer:
(c) 8597
Step-by-step explanation:
A tool for regression analysis shows the given population values fit an exponential curve better than they fit a line. The exponential function for the population can be written as approximately ...
p(x) = 6211.54(1.02998^x) . . . . . x is years after 2000
Then for x=11, the population is about ...
p(11) ≈ 8596.4
The closest answer choice is 8597.
the equation,
3u+40+2u=6u-30-u
can be solved by the following steps.
3u+40+2u=6u-30-u
+2u
5u+40=6u-30-u
-5u
40=u-30-u
+30
70=u-u
70=0
This equation has no solution