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iris [78.8K]
3 years ago
15

PLEASE HELP ME IF YOU CAN! please tell me how you got the answer thank you!

Mathematics
1 answer:
Temka [501]3 years ago
3 0
3sqrt(2)

You can either use Pythagorean theorem or special triangle proportions to find the side that is parallel to z. Since in a 45-45-90 degree triangle, the hypotenuse is the leg times the square root of 2, and the hypotenuse is 3, we know that the leg is 3/sqrt(2) which is equal to 3 sqrt(2) / 2. Since z is twice this length, we know that z is equal to 2 x 3sqrt(2)/2 = 3sqrt(2)
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Find the equation of the line shown
liraira [26]

The equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.

<h3>What is the equation of a line passing through two given points in a 2-dimensional plane?</h3>

Suppose the given points are (x_1, y_1) and (x_2, y_2), then the equation of the straight line joining both two points is given by

(y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)

The graph of the picture shows two clear points (4.5. 0) and (0, 9)

(y - 0) = \dfrac{9 - 0}{0 - 4.5} (x -4.5)\\\\\\(y - 0) = \dfrac{9 }{- 4.5} (x -4.5)\\\\\\-4.5y = 9(x -4.5)\\\\-4.5y = 9x - 40.5\\\\y = -2x + 9

Hence, the equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.

Learn more about straight-line equations here:brainly.com/question/380976

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3 0
2 years ago
Nick was thinking of a number. Nick halves it and gets an answer of 39.5. What was the original number?
Neporo4naja [7]

Answer:

79

Step-by-step explanation:

Let the original number be x.

x/2 = 39.5

x = 39.5 × 2

x = 79

4 0
3 years ago
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Can someone please help me with this math question?
mash [69]
3b+3s will be the answer
8 0
4 years ago
Solve by elimination:<br> 4x+9y=28<br> -4x-y=-28
nikdorinn [45]

Step-by-step explanation:

4x+9y=28

-4x-y=-28

8y=0

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y=0

solve for X in equation 1

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4x-0=28

4x =28

divide both side by 4

4x/4=28/4

X= 7

y=0,x=7

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3 years ago
Um feirante usava uma balança de dois pratos com pesos de 2 kg, 1 kg, 500 g, 200 g
andrew-mc [135]

Answer:

hola si mui bein

Step-by-step explanation:

3 0
3 years ago
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