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Mandarinka [93]
3 years ago
7

3. Consider the system { 9x – 12y = b

Mathematics
2 answers:
alexandr402 [8]3 years ago
8 0

Answer:

b = 30

Step-by-step explanation:

all terms in the first equation will be three times the related terms in the second equation.

Then the two equation describe the same infinite line and any x,y pair that fits on one line will also fit on the other.

Digiron [165]3 years ago
3 0

Answer:

B=30

Step-by-step explanation:

Like and give 5 star rating

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How do u solve y=3x 5x+2y=44
Digiron [165]

Answer:  which will give you 15x+3y=44 and you cannot do anything else because you don't have any like terms any more so that's your answer.

Step-by-step explanation: the first thing you need to do first is to combine like terms. and if i did a mistake sorry but i hope this helps.

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A ​17-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground feet
artcher [175]

Answer:

15 feet..

taking base as 8m

Given: ladder = 17 m and base = 8 m

The ladder forms a right triangle with the base of 8 m, the wall will be 15 m and the ladder (hypotenuse) is 17 m.

Let’s say you did not know that this was a standard 8–15–17 right triangle.

This is how you can figure it out:

hypotenuse(h)22 = side2112 + side2222

Let side11 = base and side22 = wall

1722 = 822 + wall22

wall = 172−82−−−−−−−√172−82

wall = 289−64−−−−−−−√289−64

wall = 225−−−√225

wall = 15 feet

5 0
3 years ago
The distance of the point (5, -1) from the y axis is *
pashok25 [27]

Answer:

5 units

Step-by-step explanation:

draw a horizontal line from  the point (5, -1) to the y-axis: y=-1, it hits the y-axis at (0, -1). the distance between the two is 5 units

4 0
3 years ago
What is the area of this triangle?
Murrr4er [49]
To find the rule that represents the area of this triangle, you will need to know the rule for finding area of a triangle.

A = 1/2bh

The base of this triangle is the left vertical line, so to find the distance of this line you will subtract y2 and y1.  The height of this triangle starts at (x3, y3), and moves directly to the left until it hits the base at a perpendicular intersection (90 degress).

This distance would be found by subtracting x3  and  x1.

The correct answer is the 4th choice in the list.
8 0
3 years ago
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