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2 years ago

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1 answer:

4 0

Well, you can actually tell it is D without solving it because it is the only one that has the x value as 3. But just to be sure.

Plug in 3 for x into the equation:
3(3)-y=9 and solve for y
9-y=9 subtract 9 from both sides
-y=0 so y=0

so the value is (3,0)

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Identify the value of b. PLEASE HELP!!

Degger [83]

Answer:

b = 18

Step-by-step explanation:

From an external point, the products of distances to the near circle intercept and the far circle intercept are the same. For a tangent, such as AC, point A is both the near and far intercept point, so that product is the square of the length of AC.

(AC)² = (CG)(CV)

b² = 12·27 = 324 . . . . substitute known values

b = √324 . . . . . . . . . . take the square root

b = 18

7 0

2 years ago

What is the distance between the lines y = 2x and y = 2x+5? Round your answer to the nearest tenth.

Ilia_Sergeevich [38]

The distance between both lines is 2.24 units

Step-by-step explanation:

There is no straight method to find the distance between two lines. The distance can be found out by finding a point on one line and then finding the distance of that point from the other line. The y-coordinate of point is obtained by putting any value of x in equation . The x and y combined give us the point.

Given

$y=2x\\Putting\ x=1\\y=2(1)\\y=2\\So, the\ point\ on\ y=2x\ is\ (1,2)$

We have to find the distance of this point from y=2x+5

$y=2x+5\\Subtracting\ y\ from\ both\ sides\\y-y=2x+5-y\\2x-y+5=0$

The formula for finding distance of a point (x,y) from a line is:

$d=\frac{|Ax+By+C|}{\sqrt{A^2+B^2}}$

A=2

B=-1

C=5

Putting the values in the formula

$d=\frac{|(2)(1)+(-1)(2)+5|}{\sqrt{(2)^2+(-1)^2}}\\d=\frac{|2-2+5|}{\sqrt{4+1}}\\d=\frac{|5|}{\sqrt{5}}\\d=\frac{5}{\sqrt{5}}\\d=2.236\ units$

Rounding off will give: 2.24 units

The distance between both lines is 2.24 units

Keywords: Equations of lines

Learn more about distance in lines at:

#LearnwithBrainly

7 0

2 years ago

Round 3184.5641 to the nearest hundred

Ede4ka [16]

Find the hundreds place. The digit in it is 1. Now look at the digit directly to the right of it. The digit is 8. If the digit immediately before the digit you want to round is greater than or equal to 5, you round up. 8 > 5, so round up.
The rounded value is 3200.
Hope that helped you.

3 0

2 years ago

Read 2 more answers

Which of the following is ordered from least to greatest?

zubka84 [21]

The fourth one should be the correct answer

5 0

3 years ago

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Anne is designing a shower for a client. The shower includes a triangular-shaped ledge for storage.

Mrrafil [7]

The answer is . (one [point] 4)

((Yes, its correct, checked and took an exam on it))