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drek231 [11]
3 years ago
14

X + 5y – z = 0 2x – y + 3z = -1 y = 1

Mathematics
1 answer:
Marina86 [1]3 years ago
8 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( − 3 , 1 , 2 )

Equation Form:

x = − 3 , y = 1 , z = 2

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Help me solve this question please.
pantera1 [17]
The answer is D. 9(y + 3) and 27 + 9y because 9(y + 3) when expanded is 9y + 27. I hope this helps!
3 0
4 years ago
the copy machine at the library made a copy of leslie's 3 page essay in just 1/10 of a minute. what is the speed of the copy mac
borishaifa [10]

Answer:

<h2><em>30page essay/min</em></h2>

Step-by-step explanation:

Speed is the change in distance of a body with respect to time.

Speed = Distance/Time

If the library made a copy of leslie's 3 page essay in just 1/10 of a minute, this means that she made 3 pages in (1/10 * 60)secs i.e 6secs

To get the speed, we need to calculate the amount of page of essay that are produced in a minute (60secs).

If 3 page essay = 6secs

x page essay = 60 secs

cross multiply

3*60 = 6x

180 = 6x

x = 180/6

x = 30

<em>This shows that 30 page essays are produced in just a minute. Hence the speed of the copy machine is 30page essay/min.</em>

5 0
3 years ago
Need some help please
blondinia [14]

vjsdvnruivneruijnbver

8 0
3 years ago
Which statement is true about every rectangular pyramid? Each lateral face has an area less than the area of the base. At least
andrew11 [14]

Answer:

B is correct

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A) 9<br> B) 0<br> C) Undefined<br> D) 6
mezya [45]

Answer:

<h2>B) 0</h2>

Step-by-step explanation:

The slope of a horizontal line is equal to 0.

The slope of a vertical line is undefined.

The formula of a slope:

m=\dfrac{y_2-y_!}{x_2-x_1}

Put the coordinates of the pojnts from the graph (2, 9) and (4, 9):

d=\dfrac{9-9}{4-2}=\dfrac{0}{2}=0

8 0
4 years ago
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