Answer:
B. 2 + 6x and 2(3x + 1) Choose
D. 3x and 4(x + 1) – x – 4 Choose...
E. 5.5 + 2.1x + 3.8x – 4.1 and 1.4 + 5.9x Choose...
Step-by-step explanation:
A. 3x + 14 – x + 112 and 4x + 134 Choose...
3x + 14 - x + 112
= 2x + 126
And
4x + 134
Not equivalent
B. 2 + 6x and 2(3x + 1) Choose...
2 + 6x
And
2(3x + 1)
= 6x + 2
Yes, equivalent
C. 3(x + 1) – (1 + x) and 2x + 3 Choose...
3(x + 1) - (1 + x)
3x + 3 - 1 - x
2x + 2
And
2x + 3
No, not equivalent
D. 3x and 4(x + 1) – x – 4 Choose...
3x
And
4(x + 1) - x - 4
= 4x + 4 - x - 4
= 3x
Yes, equivalent
E. 5.5 + 2.1x + 3.8x – 4.1 and 1.4 + 5.9x Choose...
5.5 + 2.1x + 3.8x - 4.1
1.4 + 5.9x
And
1.4 + 5.9x
Yes, equivalent
Answer:
K What's the problem?
Step-by-step explanation:
Answer:
I wanna say B but I might be wrong
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
If you use the trick Rise/Run you would know that it rises by 5 and it. runs by 7. Does that make sense?
From the given values, it seems as if the missing key to value here is not the margin of error, but instead, the standard error. The formula for standard error is as follows:
SE = sqrt ( x(n-x)/n^3 )
Substituting the given values:
SE = sqrt ( 78(100-78)/100^3)) = 0.04