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VLD [36.1K]
3 years ago
15

write an equation in point slope form for the line that has a slope of 9/4 and contains the point (3,-4)

Mathematics
1 answer:
denis-greek [22]3 years ago
4 0

Answer:

y+4 = 9/4(x-3)

Step-by-step explanation:

The point slope form of an equation is

y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point

Substituting in what we know

y--4 = 9/4(x-3)

y+4 = 9/4(x-3)

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2 years ago
Three vectors A, B, C in three-dimensional space satisfy the following properties
wlad13 [49]

Answer:

\frac{7}{8}\pi

Step-by-step explanation:

observe

||a–b+c|| = ||a+b+c||

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(a+b+c)² – (a-b+c)² = 0

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(a+c)b = 0

a•b + c•b = 0

||a||×||b||×cos(π/8) + ||c||×||b||×cos(θ) = 0

\cos(\theta)=-\frac{||a||\times ||b|| \times \cos(\frac{\pi}{8})}{||c||\times ||b||}=-\cos(\frac{\pi}{8})\\ \theta=\frac{7}{8}\pi

3 0
3 years ago
ANSWER THIS QUESTION FOR BRAINLEST AND 10 POINTS
EleoNora [17]
Answer:
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7 0
3 years ago
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X+y=12<br> 3x = 2y + 6<br> system of elimination
Tasya [4]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Which equation represents a line that is perpendicular to the line y= 1/4x - 1
kirill [66]
Y = 1/4x - 1....the slope here is 1/4....but for a perpendicular line we need a negative reciprocal slope...all that means is " flip " the slope and change the sign. 1/4....flip it....4/1.....change the sign....-4/1 or just -4. So our perpendicular line will have a slope of -4. The only one in ur answer choices with a slope of -4 is D.....so ur answer has to be D.
6 0
3 years ago
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