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aalyn [17]
3 years ago
15

-4x+3y=-13 -8x+3y=-17 solve by elimanation

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

Point Form:

(1, -3)

Equation Form:

x = 1, y = -3

Step-by-step explanation:

Add the equations so you can solve for the first variable. Input this value into the other equations to solve for the other variables.

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When maggie applies the brakes of her car, the car slows uniformly from 15.0 m/s to 0 m/s in 2.50 s. how many meters before a st
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In this question, we can determine Maggie car initial speed (15m/s), final speed(0m/s) and the time her car moves (2.5s). Then to calculate the distance she travels, we need to multiply the average speed with time. The equation would be:

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3 0
3 years ago
Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.<br> Simplify R - [S + T].
Mariana [72]
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7 0
3 years ago
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Find the angle 0 between the vectors. u=(1, 1, 1, 0), v = (4, 4, 4, 4).
Naya [18.7K]

Answer:

30 degrees

Step-by-step explanation:

u dot v=1*4+1*4+1*4+0*4=4+4+4+0=12

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|v|=sqrt(4^2+4^2+4^2+4^2)=sqrt(4*4^2)=2*4=8

cos(theta)=u dot v/(|u||v|)

cos(theta)=12/(sqrt(3)*8)

cos(theta)=3/(sqrt(3)*2)

cos(theta)=sqrt(3)/2

theta=30 degrees

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3 years ago
Find the area of a triangle with a base of 18 feet and a height of 7 feet
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Will give brainliest
posledela

Answer:

8

Step-by-step explanation:

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