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Mrrafil [7]
2 years ago
11

Solve i + j + t (3i - j) = -i + s (j) In the context of Vector Equations of a Line

Mathematics
1 answer:
Oksana_A [137]2 years ago
3 0

Answer:

r = i + j + (-2/3)(3i - j)

Step-by-step explanation:

Vector Equation of a line - r = a + kb ; where r is the resultant vector of adding vector a and vector b and k is a constant

if a = i + j ; b = t(3i - j) and r = -i +s(j)

for this to be true all the vector components must be equal

summing i 's

i + 3ti  = -i; then t = -2/3

j - tj = sj; then s = 1-t; substitue t; s=1+2/3 = 5/3

so r = i + j + (-2/3)(3i - j) which will symplify to -i + 5/3j

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write a linear equation in slope-intercept form to model a tee 4 feet tall that grows 4 inches each year
SIZIF [17.4K]

Answer:

Y=4x+4

Step-by-step explanation:

if it grows 4 inches each year that means it's the slope

and 4 feet tall model is the y intercept cuz its what you begin with

4 0
2 years ago
Find the coordinates of the midpoint of LB if L(8,5) and B(-6,2)<br><br> 10 points!!!
KATRIN_1 [288]

Answer:

A, (1, 3+1/2)

Step-by-step explanation:

Midpoint formula for reference: m= {(x1 + x2)/2, (y1 + y2)/2}

Plugging in the points we get: m= {(8 - 6)/2, (5 + 2)/2}

Now we simplify using PEMDAS. First step is parentheses.

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Simplifying again (and making 7/2 a mixed number), it becomes

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Hope this helps!

3 0
2 years ago
Choose the equation that is equivalent to: 4(8x+6)=20
KengaRu [80]

Answer:

B

Step-by-step explanation:

32x + 24 = 20

24 - 24= 0

20 - 24=  -4

32x = -4

32x/32

x

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7 0
2 years ago
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I'm confused- how do I form the equation with 2 pts?
klio [65]

Answer:

the equation of the line is   y = -3x - 6

Step-by-step explanation:

Note that since (0, -6) is the y-intercept, we can write the slope-intercept equation of the line as y = mx - 6.  The other given point is (-2, 0) (which happens to be the x-intercept also).  Starting with y = mx - 6, replace y with 0 and x with -2:  

0 = m(-2) - 6.  We now solve this for the slope, m:  0 = -2m - 6 becomes

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With m = -3 and b = -6, the equation of the line is   y = -3x - 6

4 0
3 years ago
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11Alexandr11 [23.1K]

Answer:

Use the given functions to set up and simplify

h = −31

Step-by-step explanation:

branliest pls

7 0
2 years ago
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