Answer:
x times 2x divide by 2 or 2xsquared/2
Step-by-step explanation:
hope this helps!
(1) p x q = 1575
(2) p / q = 9 / 2
divide 1 by 2 to eliminate p:
q^2 = 1575 / (9/2)
q^2 = 350
q = sqrt(350)
Substitue q in either 1 or 2 to find p.
Answer:
a(7) = -0.4
Step-by-step explanation:
The general formula for a geometric progression is a(n) = a(1)*r^(n - 1), where r is the common ratio. In this problem, a(1) = -6250. To find r, we divide 1250 (the 2nd term) by -6250 (the 1st term), obtaining r = -0.2.
Then the formula for THIS geometric progression is
a(n) = -6250*(-0.2)^(n - 1).
Thus, the 7th term of THIS progression is
a(7) = -6250*(-0.2)^(7 - 1), or -6250*(-0.2)^6, or -0.4
Answer:
x=20
Step-by-step explanation:
We have 7 = (-5) + 12;
19 = 7 + 12;
31 = 19 + 12 ;
