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adoni [48]
3 years ago
7

HELP With this question

Mathematics
1 answer:
ahrayia [7]3 years ago
6 0

Answer:

Step-by-step explanation:

sin 60=CB/18

\frac{\sqrt{3} }{2} =\frac{CB}{18} \\CB=9\sqrt{3}

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Graph - 9x + 6y = 18 using linear standard form
postnew [5]

Answer:

The graph is attached Below and the plotting is given below.

Step-by-step explanation:

Given:

-9x + 6y = 18

Solution:

To draw a line on a graph the required minimum two points but here we will have three points as point A, point B, and point C.

For point A

Put x = -4 in the given equation we get

-9×-4 + 6y = 18

6y = 18-36

∴ y=\frac{-18}{3}\\ \\y=-3

∴ Point A ≡ ( -4, -3 ).

For point B

Put x = -2 in the given equation we get

-9×-2 + 6y = 18

6y = 18 - 18

6y = 0

∴ y=\frac{0}{3}\\ \\y=0

∴ Point B ≡ ( -2, 0 ).

For point C

Put x = 0 in the given equation we get

-9×0 + 6y = 18

6y = 18

∴ y=\frac{18}{3}\\ \\y=3

∴ Point C ≡ ( 0, 3 ).

Now we have Point A ,B and C join it and you will have Line.

3 0
3 years ago
How do I solve this problem(3x-4y)-(6x-28y)
Tema [17]

Answer:

3x-4y-6x+28y

-3x-6x-4y+28y

-9x+24y

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Can I get some help on this one and if you could show its done I would appreciate it. Thank you.
Andreyy89
<h3>Answer: 5.5 which is choice B</h3>

Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle

opposite the reference angle is the vertical side x

adjacent to the reference angle is the horizontal side 15

We'll use the tangent rule. Make sure your calculator is in degree mode.

tan(angle) = opposite/adjacent

tan(20) = x/15

15*tan(20) = x <<-- multiply both sides by 15

x = 15*tan(20)

x = 5.45955 <<--- use calculator; this is approximate

x = 5.5 <<--- round to one decimal place

5 0
3 years ago
Compare these rational numbers. Which of the following are true?
Inessa [10]

Answer:

i. false

ii. true

iii. true

iv. false

When comparing negative numbers, if you disregard the negative sign, the apparent greater value will actually be the smaller.

6 0
3 years ago
Select the correct answer from each drop-down menu.
alina1380 [7]

Answer:

Step-by-step explanation:

Y

5 0
3 years ago
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