CALC HELP PLEASE ASAP QUESTIONS ATTACHED

Mathematics

1 answer:

Lina20 [59]4 years ago

6 0

Answer:

Step-by-step explanation:

The dark point at x = 2 represents f(2). In this case, the limit is 3

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If sin theta = 2/7 and tan theta>0 what is the value of cos theta

Ronch [10]

Answer:

Step-by-step explanation:

sin(θ) = 2/7

sin²(θ) +cos²(θ) =1

$(\frac{2}{7})^{2} +cos^2(theta)=1 \\\\cos^2(theta)=1-(\frac{4}{49} )=\frac{49}{49}-\frac{4}{49} =\frac{45}{49} \\ \\cos(theta)=+/-\sqrt{\frac{45}{49} } =+/-\frac{3\sqrt{5} }{7}$

$Answer \\ is \frac{3\sqrt{5} }{7}$

Answer is positive because tangent is positive, sin is also positive, and tan=sin/cos.

6 0

3 years ago

The lines shown below are perpendicular. If the green line has a slope of 2/5 what is the slope of the red line

Ksenya-84 [330]

In this item, we are not given with the figure but knowing that these lines ought to be perpendicular then we will be able to derive the relationship between the slopes of the line.

The slopes of the perpendicular line are the negative reciprocals of one another. If we represent the slopes of the lines as m₁ and m₂, the relationship can be written in the form,
(m₁)(m₂) = -1

We are given with one of the slopes. To determine the value of the second slope then,
m₂ = -1/m₁
m₂ = -1/(2/5)
m₂ = -5/2

<em>ANSWER: m₂ = -5/2</em>

6 0

3 years ago

Please someone help!!!!

ira [324]

Answer:

165.8 ft (nearest tenth)

Step-by-step explanation:

We can use the tan trig ratio to calculate the height of the tower.

$\sf tan(\theta)=\dfrac{O}{A}$