What is the first term of the geometric sequence presented in the table below?
1 answer:
Fron the table given: A3 = 112, A8 = - 3,584 An = A1 *r ^ (n-1) => A3 = A1 (r^2) = 112 A8 = A1(r^7) = - 3,584 => - 3584 / 112 = (r^7) / (r^2) => (r^5) = - 32 => r = - 2 => A1 (- 2)^2 = 112 => A1 = 112 / 4 = 28 Answer: a1 = 28
You might be interested in
Answer:
yup you are correct. The answer is 144 :)
Step-by-step explanation:
Also thx for the points!
Answer:
Correct Answer is B
Step-by-step explanation:
y-4=6
+4. +4
y=10
Answer:
4
Step-by-step explanation:
3*4+2=14
12+2=14
14=14
Answer:
f(x)=x^3+7
y=x^3+7
x=y^3+7
y^3=x-7
y=cube root (x-7)
f(x) inverse=cube root of x-7
Step-by-step explanation:
175 students walk to school. 7+5=12 and 420 divided by 12 is 35. I checked how I did it was correct because of 5*35+7*35=420. Then I found the product of 5*35 which is 175.