QueenThao5031 QueenThao5031
  • 23-01-2024
  • Mathematics
contestada

Let a1 = 8, a2, a3, …. an be an A.P. If the sum of its first four terms is 50 and the sum of its last four terms is 170, then the product of its middle two terms is _______.
A) 60
B) 64
C) 72
D) 80

Respuesta :

Otras preguntas

A contractor digs a hole for the basements of a new house that is 40 feet long and 10 1/2 feet deep. What is the width of the hole if 6,510 cubic feet of dirt a
How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm
Solve the following equations enter x-coordinate of the solution round to the nearest tenth 5y+2y=22 -2y+6y=3
You may have learned about the sheep clone Dolly in your science class. Although this experiment was greeted as a great success, there are many problems with cl
Identify the solution(s) of the system of equations, if any. -2x - 2y = 4 8y = -8x - 16
y=63x^6+275 x=30 solve for y
Solve the following equations enter x-coordinate of the solution round to the nearest tenth 5y+2y=22 -2y+6y=3
The practice of Islam throughout much of west Africa is evidence that
what are the factor pairs of 73
What is the lcm of two numbers if one number is a multiple of the other give example