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Andrei [34K]
2 years ago
13

your a teacher pick whitch on is right abram 50 nadeen 18 which is right Explain what the student did wrong who has the incorrec

t answer 8+2•(6-1)
Mathematics
1 answer:
OverLord2011 [107]2 years ago
5 0
*Answer* : 50


*Explanation* :

8+2•(6-1)
10•(6-1)
10•6 10•-1
60 -10 = 50
I hope this helps :))
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Multiplying 20×1/2 is the same as dividing 20 by 2. Which means the answer is 10.
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3 years ago
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How do I solve this equation?
Keith_Richards [23]

Answer:

y=\frac{7}{2}x+11

Step-by-step explanation:

To solve, we need to find the y-intercept (b). In order to find the y-intercept, we can plug in the slope and the (x,y) coordinate pair given to us into the equation to solve for the y-intercept:

y=mx+b

4=(-7/-2)*-2+b

4=14/-2+b

4=-7+b

Add 7 to both sides

b=11

Therefore the equation is:

y=\frac{7}{2}x+11 (note that the fraction is positive since the two negatives cancel out)

4 0
2 years ago
For a certain data set the regression equation is y = 2 + 3x. The correlation coefficient between y and x in this data set _____
lozanna [386]

Answer:

C. Must be 1

Step-by-step explanation:

The correlation coefficient of an equation represents the relation between the  two variable ( dependent and independent )

It lies between -1 to 1,

If an equation has strongly positive correlation then the value of correlation coefficient is 1,

If there is no relation then the value of correlation is 0,

If there is strongly negative relation then the value of correlation coefficient is -1,

Here, the equation is,

y = 2 + 3x

Since, the value of y is increasing with increasing the value of x,

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Option 'C' is correct.

7 0
3 years ago
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Amiraneli [1.4K]

Answer:

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STEP 1:
find the sales tax (decimal form)

x= sales tax

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x= 0.47/9.40

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STEP 2:
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