Answer:
wrong it is 667.95
Step-by-step explanation:
Answer:
Below in bold
Step-by-step explanation:
The sequence is:
3, x, y, 18
If this is an A P then
x - 3 = y - x
2x - y = 3 (A) and
y - x = 18 - y
2y - x = 18 (B)
Multiply (A) by 2:
4x - 2y = 6 (C)
Adding B and C:
3x = 24
x = 8.
and
2y - 8 = 18
2y = 26
y = 13.
So x = 8 and y = 13.
b) ar + ar^2 = 6ar^3 where a = first term and r = common ratio
Divide by a:
r + r^2 = 6r^3
6r^3 - r^2 - r = 0
r(6r^2 - r - 1) = 0
r(3r + 1)(2r - 1) = 0
So the 2 possible values of r
= -1/3 and 1/2.
i) The common ratio is positive so it must be 1/2.
Second term ar = 8
1/2 a = 8
a = 16.
So the first 6 terms are:
16, 8, 4, 2, 1, 1/2.
Answer: D
Step-by-step explanation:
h(x) is f(x) for x moving 4 units right.
h(x)=f(x-4) =√(x-4)
Answer D
I am guessing the answer is C.
since X seem to be a full 90-degree angle, and y is also 45 degrees.
Let x = Amount invested at 2%
y = Amount invested at 9%
x + y = 34000 ×(-0.02)→ -0.02x - 0.02y = -680
0.02x + 0.09y = 2570 → 0.02x + 0.09y = 2570
add the equations 0.07y = 1890
divide by 0.07 both sides y = 27000
x = 34000 - 27000 = 7000
ANSWER:
Invested at 2%: $7000
Invested at 9%: $27000
