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3 years ago

X+2y+z=4 2x-y+4z =-8 -3x+y-2z=-1

Mathematics

1 answer:

WITCHER [35]3 years ago

8 0

Answer

{x,y,z} = {-15/4,7/2,3/4}

Step-by-step explanation:

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This relation is an inverse variation {(-1,8),(4,-2),(-2,4)} what equation represents this relation?

swat32

ANSWER

$y = - \frac{8}{x}$

EXPLANATION

An inverse variation equation is of the form:

$y = \frac{k}{x}$

We plug in the point (-1,8).

$8= \frac{k}{ - 1}$

This implies that k=-8

Therefore the inverse variation equation is :

$y = - \frac{8}{x}$

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Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit. Over a

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Answer:

Speed of car is 78 mph which travels the distance in 6 seconds.

Step-by-step explanation:

Given:

Speed of the car R = 52 mph

Time t = 9 seconds

We need to find the speed of a car that travels the given distance in 6 seconds.

Now first we will find the distance traveled by the car in 9 seconds.

Distance can be calculated by multiplying speed and time.

Distance = $Speed \times Time = 52\times9 = 468 miles.$

Hence Total distance travel by car is 468 miles.

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Hence;

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3 years ago

Which of these could be the length of sides of right triangle ABC?

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Answer:

Step-by-step explanation:

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Hope this helps you!

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4 years ago