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rjkz [21]
3 years ago
13

Can someone help me on a.) and b.) please... Thanks so much!!!

Mathematics
2 answers:
jenyasd209 [6]3 years ago
8 0

Answer:

Step-by-step explanation:s 15 s30 s70

Olegator [25]3 years ago
5 0

Answer:

a) 1 dollar more per year, b) 8 dollars an hour with no experience

Step-by-step explanation:

The first thing I want you to understand is that the line which is inbetween all of the points is the line of best fit. It basically tells you the average growth of the scatter plot.

The way we could find a is by finding the slope of the line of best fit.

You can see that every year, the pay increases by one dollar. Just look at the graph logically and understand the slope.

If you see the graph, the x-axis shows the number of years of experience. If you follow the slope, the predicted amount is 8 dollars an hour.

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4 years ago
Judith has \$70 in a savings account that earns 5% interest , compounded annually .
Firlakuza [10]

Answer:

$81.03

Step-by-step explanation:

Given

n = 1 --- annually

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Required

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This is calculated as:

FV = PV * (1 + \frac{r}{n})^{nt}

This gives:

FV = 70 * (1 + \frac{5\%}{1})^{1*3}

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4 0
3 years ago
Use the distributive property to expand the expression. −2(5a − 3b2) − 4b + 3 A) −10a + 6b2 − 4b + 3 B) −10a − 6b2 − 4b + 3 C) −
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The answer is:  [B]:  " -10a + 6b² − 4b + 3 " .
_____________________________________
Explanation:
____________________
Given:
____________________________
  -2(5a − 3b²) − 4b + 3 ;  
_________________________________
    "Use the distributive property [of multiplication] to expand the expression."
______________________________________________
Note the distributive property of multiplication:
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           a(b + c) = ab + ac ;
           a(b − c) = ab − ac ;
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Start  with:  " -2(5a − 3b²) " ; 
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           =  -10a + 6b²
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        → Now, bring down the rest of the problem; 
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  -10a + 6b² − 4b + 3 ;  which is:  Answer choice:  [B].
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Answer:

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