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3 years ago

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5. The points (2, 4) and (6,7) lie on a line. What is the slope of the line? A. 2 B. 1 C. 4/3 D. 3/4

1 answer:

bearhunter [10]3 years ago

3 0

The answer is D. 3/4

I hope this helped good luck!

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Find the value of k and x2<br> x^2+ 13x + k = 0, x1=-9

Anarel [89]

Given:

The quadratic equation is:

$x^2+13x+k=0$

$x_1=-9$

To find:

The value of k and $x_1$ .

Solution:

We have,

$x^2+13x+k=0$ ...(i)

Putting $x=-9$ , we get

$(-9)^2+13(-9)+k=0$

$81-117+k=0$

$-36+k=0$

$k=36$

Putting $k=36$ in (i), we get

$x^2+13x+36=0$

Splitting the middle term, we get

$x^2+9x+4x+36=0$

$x(x+9)+4(x+9)=0$

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$x=-9,-4$

Here, $x_1=-9$ and $x_2=-4$ .

Therefore, the required values are $k=36$ and $x_2=-4$ .

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3 years ago

You were shopping for a Christmas present. You found the item on sale for 20% off. Tax is 8%. If the original price was $450, ho

klio [65]

Answer:

$Cost\ of\ gift=\$ 388.8$

Step-by-step explanation:

Original Price $=\$450$

Discount:

Discount $=20\%$

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Tax:

Tax $=8\%$

$8\%\ of\ 360=\frac{8}{100}\times 360=28.8\\\\Final\ cost=360+28.8=\$388.8$

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3 years ago

How do i do this <br> f(x) = -3(3) + 2

ANTONII [103]

The answer is given above

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4 years ago

Please help me with this question?

crimeas [40]

Answer:

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Step-by-step explanation:

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Convert 4 hours into minutes

4 hours * (60 minutes/1 hour) = 240 minutes

Divide 240 minutes by 4 to obtain the difference in longitude

240/4 = 60

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3 years ago

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allsm [11]

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Step-by-step explanation:

In function, for one value of x there must be only one value of y.

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3 years ago