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ludmilkaskok [199]
2 years ago
10

Horizontal plane A and vertical plane B intersect at a line. Line n is vertical on plane B and forms a right angle with horizont

al line m on plane A. Line l is diagonal on plane A. Are the lines in the diagram perpendicular, parallel, skew, or none of these? l and m: l and n: m and n:
Mathematics
2 answers:
Greeley [361]2 years ago
5 0

Answer:

L and M - None of these

L and N - Skew

M and N - Perpendicular

Step-by-step explanation:

Mars2501 [29]2 years ago
3 0

Question:

Are the lines in the diagram perpendicular, parallel, skew, or none of these?

Answer:

l and m:

<em>none of these</em>

l and n:

<em>skew</em>

m and n:

<em>perpendicular</em>

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2 years ago
The angle \theta_1θ
enyata [817]

Answer:

sin\theta_1 = \dfrac{\sqrt{217}}{19}

Step-by-step explanation:

It is given that:

cos\theta_1 = -\dfrac{12}{19}

And we have to find the value of sin\theta_1 = ?

As per trigonometric identities, the relation between sin\theta\ and \ cos\theta can represented as:

sin^2\theta + cos^2\theta = 1

Putting \theta_1 in place of \theta Because we are given

sin^2\theta_1 + cos^2\theta_1 = 1

Putting value of cosine:

cos\theta_1 = -\dfrac{12}{19}

sin^2\theta_1 + (\dfrac{12}{19})^2 = 1\\\Rightarrow sin^2\theta_1 + \dfrac{144}{361} = 1\\\Rightarrow sin^2\theta_1 = 1-\dfrac{144}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{361-144}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{217}{361}\\\Rightarrow sin\theta_1 = +\sqrt{\dfrac{217}{361}}, -\sqrt{\dfrac{217}{361}}\\\Rightarrow sin\theta_1 = +\dfrac{\sqrt{217}}{19}, -\dfrac{\sqrt{217}}{19}

It is given that \theta_1 is in 2nd quadrant and value of sine is always positive in 2nd quadrant. So, the answer is.

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8 0
2 years ago
Rework problem 28 from section 3.1 of your text, involving the inspection of refrigerators on an assembly line. You should still
sergeinik [125]
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3. The probability of paint defects that results to <span>an improper amount of paint and uneven application? </span>
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4. <span>the probability of a paint defect that results to</span>
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Step-by-step explanation:

5h^2-12hg

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Now, we've "carried" h out of the expression and have therefore factored it.

I hope this helps!

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They would be able to print 3 posters
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