3 years ago

Precalc: Vector word problem:

1 answer:

8 0

Bearing in mind that $\bf \begin{cases}
x=rcos(\theta )\\\\
y=rsin(\theta )
\end{cases}$

I can make this much from that, check the picture below.

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goldenfox [79]

Answer:

2. x = 135

Step-by-step explanation:

im not sure about question 1

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3 years ago

Sharon read a 300-page book. She read at a rate of 15 pages per day in d <br> days.

faust18 [17]

300/15 = d

I hope this helps!

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3 years ago

What values of k will make the line containing points (k,3) and (-2,1) parallel to the line through (5, K) and (1,0)

rjkz [21]

Answer:

k = -4 or 2

Step-by-step explanation:

For the lines to be parallel, the lines would need to be the same slope. This means to find the slope of each we would take the difference of the rise over the run.

$\frac{1-3}{-2-k}=\frac{-2}{-2-k}$

and

$\frac{0-k}{1-5}=\frac{-k}{-4}$

To find K, set them equal.

$\frac{-2}{-2-k} = \frac{-k}{-4}\\-k(-2-k) = -2*-4\\2k+k^2=8\\k^2+2k-8=0$

Factor the quadratic and solve for K.

$(k+4)(k-2)=0$

k+4=0 so k=-4

k-2=0 so k=2

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3 years ago

Factor as the product of two binomials x^2-2x+1

Ket [755]

Answer:(x + 1)^2

Step-by-step explanation:

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Terrence McGraw sells lumber. He earns 4% commission on the first $5,000 in sales, 8% on the next $5,000, and 12% on sales over

Sindrei [870]

His total commission was $1560.

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