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3 years ago

Let Ir = 17 at an angle of 40° and s = 14 at an angle of 160°. Which expression represents r + s|?

Mathematics

1 answer:

vladimir1956 [14]3 years ago

6 0

Answer:

B. I got it right on the quiz

Step-by-step explanation:

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Find the center of the circle whose equation is (x - 5) 2 + (y + 3) 2 = 6.

Komok [63]

Answer:

(5, -3)

Step-by-step explanation:

Solve for x and solve for y by making each set of brackets equal to 0

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2 years ago

Smart people. Please click here. I attached a pic of the problem

sergey [27]

Look at the picture.

$r=\sqrt{x^2+y^2}$

$\sin\theta=\dfrac{y}{r}\\\\\cos\theta=\dfrac{x}{r}\\\\\tan\theta=\dfrac{y}{x}\\\\\cot\theta=\dfrac{x}{y}\\\\\sec\theta=\dfrac{r}{x}\\\\\csc\thera=\dfrac{r}{y}$

We have the point $\left(\dfrac{8}{17},\ \dfrac{15}{17}\right)\to x=\dfrac{8}{17},\ y=\dfrac{15}{17}$ .

Calculate r:

$r=\sqrt{\left(\dfrac{8}{17}\right)^2+\left(\dfrac{15}{17}\right)^2}=\sqrt{\dfrac{64}{289}+\dfrac{225}{289}}=\sqrt{\dfrac{289}{289}}=\sqrt1=1$

$\sin\theta=\dfrac{\frac{15}{17}}{1}=\dfrac{15}{17}\\\\\cos\theta=\dfrac{\frac{8}{17}}{1}=\dfrac{8}{17}\\\\\tan\theta=\dfrac{\frac{15}{17}}{\frac{8}{17}}=\dfrac{15}{17}:\dfrac{8}{17}=\dfrac{15}{17}\cdot\dfrac{17}{8}=\dfrac{15}{8}\\\\\cot\theta=\dfrac{\frac{8}{17}}{\frac{15}{17}}=\dfrac{8}{17}:\dfrac{15}{17}=\dfrac{8}{17}\cdot\dfrac{17}{15}=\dfrac{8}{15}\\\\\sec\theta=\dfrac{1}{\frac{8}{17}}=1:\dfrac{8}{17}=\dfrac{17}{8}\\\\\csc\theta=\dfrac{1}{\frac{15}{17}}=1:\dfrac{15}{17}=\dfrac{17}{15}$

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3 years ago

Question 3 of 10

Viefleur [7K]

Answer:

Step-by-step explanation:

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3 years ago

What number line shows the solution set to this inequality? -2x + 9 < x − 9

UkoKoshka [18]

For the number line, an open circle will be drawn on the value of 6 and the arrow pointing to the right side.

<h3>Number line and inequality</h3>

Given the inequality expression as shown

-2x + 9 < x − 9

Collect the like terms

-2x - x < -9 - 9

-3x < -18

Divide through by -3

x > -18/-3

x > 6

For the number line, an open circle will be drawn on the value of 6 and the arrow pointing to the right side.

Learn more on number line here: brainly.com/question/4727909

#SPJ1

4 0

2 years ago

Please Help!<br><br><br>Find Angles 3 and 8 in degrees

pav-90 [236]

Answer:

Angles 3 is 75 while angle 8 is 105

Step-by-step explanation:

give me brainliest

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3 years ago