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Rudik [331]
3 years ago
10

the distance between bay town and oak glen is 175 miles. if the equation y=-x+ 175 represents the distance left to travel to oak

glen, what does the domain represent? what is the domain?
Mathematics
2 answers:
faltersainse [42]3 years ago
3 0
The domain represents the time traveled. It is any positive number.
ankoles [38]3 years ago
3 0

Answer: distance traveled since leaving Bay Town; x ≥ 0

Step-by-step explanation: ^^ USATestPrep the answer is D

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Find an equation of the plane orthogonal to the line
jolli1 [7]

The given line is orthogonal to the plane you want to find, so the tangent vector of this line can be used as the normal vector for the plane.

The tangent vector for the line is

d/d<em>t</em> (⟨0, 9, 6⟩ + ⟨7, -7, -6⟩<em>t </em>) = ⟨7, -7, -6⟩

Then the plane that passes through the origin with this as its normal vector has equation

⟨<em>x</em>, <em>y</em>, <em>z</em>⟩ • ⟨7, -7, -6⟩ = 0

We want the plane to pass through the point (9, 6, 0), so we just translate every vector pointing to the plane itself by adding ⟨9, 6, 0⟩,

(⟨<em>x</em>, <em>y</em>, <em>z</em>⟩ - ⟨9, 6, 0⟩) • ⟨7, -7, -6⟩ = 0

Simplifying this expression and writing it standard form gives

⟨<em>x</em> - 9, <em>y</em> - 6, <em>z</em>⟩ • ⟨7, -7, -6⟩ = 0

7 (<em>x</em> - 9) - 7 (<em>y</em> - 6) - 6<em>z</em> = 0

7<em>x</em> - 63 - 7<em>y</em> + 42 - 6<em>z</em> = 0

7<em>x</em> - 7<em>y</em> - 6<em>z</em> = 21

so that

<em>a</em> = 7, <em>b</em> = -7, <em>c</em> = -6, and <em>d</em> = 21

4 0
3 years ago
Phil is making a boat. His small model is 24 inches long and 4.75 inches wide. He is finalising it, and it is 8 feet long. How w
Maslowich

your answer would be 19 inches because 24 divided by 12(length of a foot in inches) is 2 and therefore you also divide 4.75 by 2 to get 2.375 and multiply that by 8 the amount of feet and your done

6 0
3 years ago
I need help on this one pls help me
vekshin1
What is the question?
6 0
3 years ago
Read 2 more answers
Guys, please help me out. Thanks.
kaheart [24]

Answer:

w = 13

Step-by-step explanation:

Using the method of cross- multiplying

• \frac{a}{b} = \frac{c}{d} ⇒ ad = bc, thus

42(w + 11) = 28(w + 23) ← distribute parenthesis on both sides

42w + 462 = 28w + 644 ( subtract 28w from both sides )

14w + 462 = 644 ( subtract 462 from both sides )

14w = 182 ( divide both sides by 14 )

w = 13

6 0
3 years ago
36 is what percent of 90 show work
hodyreva [135]

Answer: 36 is 4% of 90

Step-by-step explanation: create a fraction of 36/90 then divide both numbers by 18.

4 0
2 years ago
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