Assuming she worked at a constant rate, how many rows had been completed before Elena started working?
2 answers:
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Hello!
For this you can plug in the x values in the choices and see if you get the y value
y =
-4^3 is -64
when you subtract a negative you are just adding
-64 + 4 = 60
Then you do the second one
-3^3 is -27
-27 + 3 is -24
Then the third one
-2^3 is -8
-8 + 2 is -6
Then the last one
-1^3 is -1
-1 + 1 = 0
Since we did not get -2 the answer is D
Hope this Helps!
For this you can plug in the x values in the choices and see if you get the y value
y =
-4^3 is -64
when you subtract a negative you are just adding
-64 + 4 = 60
Then you do the second one
-3^3 is -27
-27 + 3 is -24
Then the third one
-2^3 is -8
-8 + 2 is -6
Then the last one
-1^3 is -1
-1 + 1 = 0
Since we did not get -2 the answer is D
Hope this Helps!
Answer
1/2+2×(sqrt3)^2+x.(sqrt3/2)^2=8+1^2+1/2
1/2+2×3+x.3/4=8+1+1/2
1/2-1/2+6+x.3/4=9
x.3/4=9-6
x.3×4=3
x.3=3×4
x.3=12
x=12/3
x=4.
so, the value of x is 4.
hope it helps you.
