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larisa [96]
3 years ago
6

Factor completely: 2x2 - 6x - 56

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
6 0

Answer:

2(x - 7)(x + 4)

Step-by-step explanation:

Given expression is,

2x^2 - 6x - 56

By the middle term splitting,

=2x^2-(14-8)x-56

=2x^2-14x+8x-56

=2x(x-7)+8(x-7)

=(2x+8)(x-7)

=2(x-7)(x+4)

Since, further simplification is not possible,

Hence, third option is correct.

sineoko [7]3 years ago
5 0
The correct answer is, C. 2(x-7) (x+4)

I hope this helps. :)

And have a great day. :D
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Find the y intercept of -2,5 and 3,25
AlexFokin [52]

Answer:

Y-intercept = 13

Step-by-step explanation:

Since, given points are:  

(-2,5) and (3,25)

Now, by slope intercept form:

y= mx + b

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In order to find y-intercept, we must find slope firstly:  

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Slope= m= y2-y1 / x2-x1  

m= 25 - 5 / 3 - (-2)

m= 20 / 5  

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Put ‘m’ in slope intercept form:

y= 4x + b  

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25 - 12 = b

or b= 25 - 12

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Hence, y-intercept is 13.  

6 0
4 years ago
Miller's Bank is offering a new certificate of deposit (CD) with daily compounding and an annual interest rate of 4.65% for a te
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Answer:

$20,086.35

Step-by-step explanation:

To calculate the maturity value by compound interest, we will use the formula

A=P(1+\frac{r}{n})^{nt}

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Now substituting the values,

A=10,000(1+\frac{0.0465}{365})^{(365)(15)}

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A bus travels 6/8 of a mile in 12 of a minute. How far will it travel in one minute?
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Answer:

1/16 of a mile in one minute.

Step-by-step explanation:

1. you know that 3/4 mile = 12 mins and x mile = 1 min

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