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Shalnov [3]
3 years ago
11

What rule must be applied when evaluating an expression in which the

Mathematics
2 answers:
qaws [65]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

When evaluating a expression in which operations have the same priority.

Then evaluate from left to right

zavuch27 [327]3 years ago
4 0

Answer:

They are calculated from left to right.

Step-by-step explanation:

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Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.
antoniya [11.8K]
= > x² + 7x + 12 = 12

= > x² + ( 4 + 3 )x + 12 = 12

= > x² + 4x + 3x + 12 = 12

= > x( x + 4 ) + 3( x + 4 ) = 12

= > ( x + 4 ) ( x + 3 ) = 12


Percy did correct till this step. But by doing like this, Percy can't get the values of the variable x.



Percy should follow the following steps :

= > x² + 7x + 12 = 12


Add -12 on both sides,


= > x² + 7x + 12 - 12 = 12 - 12

= > x² + 7x = 0

= > x( x + 7 ) = 0

= > ( x = 0 ) or ( x + 7 = 0 )

= > ( x = 0 ) or ( x = - 7 )



Hence, required value(s) of x is 0 or -7
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3 years ago
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1. What is the distance between the points (-3,0) and (3, 8) in the xy-plane?
olga_2 [115]
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3 years ago
Compute the conditional probabilities from the two-way frequency table.
Natali5045456 [20]

Answer:

The table is show clearly in the figure attached.

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P(boy if favourite activity is sport) = 20/27 = 0.74

P(favourite activity is swimming if a girl) = 9/20 = 0.45

P(favourite activity is reading if a boy) = 2/30 = 0.07

P(favourite activity is swimming if a boy) = 8/30 = 0.27

P(favourite activity is reading if a girl) = 4/20 = 0.2

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Which is a characteristic of the line that passes through the points (6, 10) and (12, 7)?
tekilochka [14]

Answer:

The y-intercept is 13.

3 0
3 years ago
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Please solve for g!!!!
laiz [17]
The answer to the question

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