Answer: yes, it very creative!!!
Step-by-step explanation:
I believe that if you were trying to find the ratio that adds up to square ratio then you put it in terms of x
3x+5x=1600
8x=1600 and then you divide by 8
x=200
then you plug it in
3x=3(200)=600
5x=5(200)=1000
600:1000 is your final answer in sq yards
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
Sample size = 865 = n
Number of voters favor approval of an issue before the legislature = 408 = x
So,
At 95% confidence level of significance, z = 1.96
So, confidence interval would be
Hence, option 'c' is correct.
Answer:
(x, y)=(4,-8)
Step-by-step explanation:
9x+y=28
3x+3y=-12 /:(-3)
9x+y=28.......(1)
-x-y=4......(2)
9x+y=28
(1)+(2): 8x=32
9x+y=28
x=32/8
9x+y=28
x=4
9*4+y=28
x=4
36+y=28
x=4
y=28-36
x=4
y=-8
x=4
(x, y) =(4,-8)