A geometric sequence is a sequence in which there is a common ratio between any two consecutive terms. In this case if X:Y:Z are in the ratio of 2:7:8 the multiplying by a constant k, we have X=2k, Y= 7k and Z=8k.
Then if X, Y-12, Z form a Geometric sequence, it means X/Y-12=Y-12/Z which is the same as 2k/7k-12=7k-12/8k if we cross multply, we get
16k²= 49k²-168k +144
33k²-168k+144 =0 solving for k
k = 4 or 1.091 if we take the whole number to find the values of X,Y and z,
X= 8, Y= 28 and Z=32
Answer:
do you have a picture of this
Answer:
48cm^2
Step-by-step explanation:
You first find the area (l * w) of the first rectangle on the top.
4 * 2 is 8
Then you find the area of the rectangle on the bottom.
5 * 8 is 40
Finally you add the area's together.
48
Exponential would be the correct answer I believe...
Answer:
Becky graduated with a master degree in Personal Financial Planning. After working two years in a small financial planning firm, Becky earns $60,000 annually and saves $10,000 a year. What is her average propensity to consume?a.16.7%b.25.5%c.75.7%d.83.3%e.95.5%14. Which of the following goals is stated in a way that is most useful for developing a financial plan?
Step-by-step explanation: