addisonrausch
02.06.2020 •
Mathematics
Choose the correct option
1: simplify this expression : 6 ( y + z )
a) 6z + y
b) 6yz
c) 6y + z
d) 6y + 6z
2: which equation shows the commutative property of multiplication ?
a) 9×5 = 5 ×9
b) 4×1 =4
c) 2×3 =2+2+2
d) 6×3 - 8× 3 = ( 6- 8) × 2
3: which property would you use to simplify the following expression
3 ( y + 5 )
a) distributive property
b) multiplication property of zero
c) commutative property
d) associative property
Solved
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Ответ:
because of the distributive property
2) I believe it’s C but don’t quote me on that
3) it’s A
Because the equation is in parentheses and needs to be distributed to be simplified. 3y+15
Ответ:
No
Explanation:
It is not reasonable to use the line of best fit to make predictions.
The correlation coefficient for the data is close to zero.
The correlation coefficient measures how well a line fits a set of data.
The correlation coefficient suggests that the relationship between the two variables is weak.