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3 years ago

Help ASAP!!! Identify the correct trigonometry formula to use to solve for x.

Mathematics

2 answers:

cestrela7 [59]3 years ago

8 0

Answer:

The answer is option 2.

Step-by-step explanation:

You have to apply Cosine Rule, cosθ = adjacent/hypotenuse. Then, you have to substitute the values into the formula :

$cos(θ) = \frac{adj.}{hypo.}$

$let \: θ = 55$

$let \: adj. = 11$

$let \: hypo. = x$

$cos(55) = \frac{11}{x}$

Alex787 [66]3 years ago

4 0

Answer:

cos(55) = 11/x

Step-by-step explanation:

We have the hypotenuse (x) and an angle adjacent to 55 (11). The only trigonometric formula that uses adjacent and hypotenuse is cosine (adjacent/hypotenuse), so that will be your answer.

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Write the equation of a line perpendicular to y=0.25x-7 and passes through the point -6,8

horrorfan [7]

the equation of a line perpendicular to $y=0.25x-7$ and passes through the point (-6,8) is $y=-4x+30$

Step-by-step explanation:

We need to write equation of line perpendicular to $y=0.25x-7$ and passes through the point (-6,8)

Since the line $y=0.25x-7$ is in slope-inetercept form $y=mx+b$

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So, value of y-intercept b = 30

Now the equation of the required line having slope m= -4 and b =30 will be:

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So, the equation of a line perpendicular to $y=0.25x-7$ and passes through the point (-6,8) is $y=-4x+30$

Keywords: Equation of line, slope-intercept form

Learn more about slope-intercept form at:

#learnwithBrainly

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