Answer:
let the first term of an A.P. is 'a' and common difference 'd'
∴ 8th term = sum of the first 8 terms
a8 = S
a + 7d = 8/2(2a + (8 - 1)d)
a + 7d = 8/2(2a + 7d)
2a + 14d = 16a + 56d
16a + 56d - (2a + 14d) = 0
14a + 52d = 0
divide eq. by 14 we get ,
a + 3d = 0
and a + 3d = a4 = 0
Answer:
<em>the </em><em>answer</em><em> </em><em>is </em><em>1</em>
Step-by-step explanation:
calculator
If it is in fraction you could do 5/1500 and reduce it to 1/300 , to change 1/300 to whole number it would be 3 , to change 1/300 to decimal it would be .03
Answer:
Complete the following statements.
The functions f and g have the same axis of symmetry.
The y-intercept of f is greater than the y-intercept of g.
Over the interval [-6, -3], the average rate of change of f is less than the average rate of change of g.
Answer:
x = - 4 y = - 4
Step-by-step explanation:
x+y= - 8
-9x-6y=60
First, solve for x in the first equation:
x+y = - 8 Subtract y from both sides
x + y - y = -8 - y y cancels on the left
x = - 8 - y
Now plug in what you found for x into the 2nd equation and solve for y.
- 9x - 6y = 60
-9(- 8 - y) - 6y = 60 Multiply out
72 + 9y - 6y = 60
72 + 3y = 60 Subtract 72 from both sides
72 - 72 + 3y = 60 - 72 72 cancels on the left
3y = - 12 Divie both sides by 3
3y/3 = -12/3 3 cancels on the left because 3/3 = 1
y = -4
Now plug your answer for y back into the first equation to get x.
x + y = -8
x + (-4) = - 8 Add 4 to each side
x - 4 + 4 = - 8 + 4 4 cancels on the left
x = -4
x = - 4 and y = - 4
