2 years ago

−4x − 5y − z = 18 −2x − 5y − 2z = 12 −2x + 5y + 2z = 4

1 answer:

6 0

Answer: (x,y,z) = (-4,0,-2)

Step-by-step explanation:

You might be interested in

sergij07 [2.7K]

76.25 is the answer because 1525 divided by 20 equals 76.25

8 0

3 years ago

Basile [38]

2L + 2W = 36
2(3+2W) + 2W = 36
6 + 4W + 2W = 36
6W + 6 = 36
-6 = -6
6W=30
W= 30/6 = 5 L= 3 + 2W = 3 +2 (5) = 3 +10= 13

Width is 5
Length is 13

7 0

3 years ago

babymother [125]

Answer:

Since x=−3 is a vertical line, the slope is undefined.

Step-by-step explanation:

4 0

2 years ago

Angelina_Jolie [31]

Answer: number 3 4 5

Step-by-step explanation:hope this helps!

5 0

2 years ago

Marta_Voda [28]

Answer: $45.03\ ft$

Step-by-step explanation:

Given

The length of the shadow is 78 ft

the angle of elevation is $\theta =30^{\circ}$

Suppose the height of the building is $h$

From the figure, we can write

$\tan 30^{\circ}=\dfrac{h}{78}\\\\h=78\tan 30^{\circ}\\\\h=45.03\ ft$

The height of the building is 45.03 ft

8 0

2 years ago