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4 years ago

Please help ASAP... write 2x-4y+2=0 in slope-intercept form.

Mathematics

1 answer:

ankoles [38]4 years ago

4 0

Y = 1/2x + 1/2

I hope this helped.

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write an expression for the cost of hiring a taxi to travel K kilometres if there is a fixed cost of $2 plus $.50per kilometres.

BigorU [14]

Well we want to pull out the important values here to determine our expression which in this case is $2 and $.50. Since the fixed cost is 2 and there is .50 per kilometer. We can say that .50(m)+2 is our expression. Hope this helps! I apologize if you were looking for something else in advance.

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4 years ago

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Find sin(2x), cos(2x), and tan(2x) from the given information.

larisa86 [58]

Since $\cot(x)=\frac{2}{3}$ and $\cot^{2} x+1=\csc^{2} x$ , we know that:

$\left(\frac{2}{3} \right)^{2}+1=\csc^{2} x\\\\\frac{13}{9}=\csc^{2} x\\\\\csc x=\frac{\sqrt{13}}{3}$

If $\csc x=\frac{\sqrt{13}}{3}$ , this means that $\sin x=\frac{3}{\sqrt{13}}$ and by the Pythagorean identity,

$\sin^{2} x+\cos^{2} x=1\\\left(\frac{3}{\sqrt{13}} \right)^{2}+\cos^{2} x=1\\\frac{9}{13}+\cos^{2} x=1\\\cos^{2} x=\frac{4}13}\\\cos x=\frac{2}{\sqrt{13}}$

Using the double angle formula for sine, $\sin(2x)=2\left(\frac{3}{\sqrt{13}} \right)\left(\frac{2}{\sqrt{13}} \right)=\boxed{\frac{12}{13}}$
Using the double angle formula for cosine, $\cos(2x)=1-2\left(\frac{3}{\sqrt{13}} \right)^{2}=\boxed{-\frac{5}{13}}$
So, since tan=sin/cos, $\tan (2x)=\frac{\sin(2x)}{\cos(2x)}=\frac{\frac{12}{13}}{-\frac{5}{13}}=\boxed{-\frac{12}{5}}$

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2 years ago

The given diagram shows a construction completed using a straightedge and a compass.

hammer [34]

Answer:

jhmmmmmmmgmbbbbbbbb bbbbhhhhuh

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3 years ago

What is the slope of the linear represents by the equation y = 4/5 x -3

gogolik [260]

Answer:

4/5

Step-by-step explanation:

y = mx + b

4/5 = m = slope

7 0

3 years ago

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Also I couldn’t do this question can u help me It’s emergency!!! 7th question.

strojnjashka [21]

Find 5 points by plugging in Xs for y=2x-3

0 ---> -3

1 ----> -1

2 ---> 1

3 ---> 3

4 ---> 5

then graph the points. X is the first number, and how far you go along the horizontal axis. Y is the second number, and determines how far you go along the vertical axis.

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4 years ago