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Ksju [112]
4 years ago
6

Find the radius of the circle if the center is at (1, 2) and the point (-3, 4) lies on the circle.

Mathematics
2 answers:
Alex4 years ago
8 0

Answer:

4.47

Step-by-step explanation:

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Anton [14]4 years ago
7 0

Answer:

2√5

Step-by-step explanation:

The radius is the distance from the center to a point anywhere along the edge of the circle. To find the distance between these two points, use the distance formula.

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\d = \sqrt{(1--3)^2 + (2-4)^2}\\ d = \sqrt{4^2 + -2^2}\\ d = \sqrt{16 + 4}\\ d = \sqrt{20} \\d = 2\sqrt{5}

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Solve for p.<br><br> 2(p + 1) = 18
n200080 [17]

Answer:

p = 8

Step-by-step explanation:

Subtract 18 from behind the equal sign to cancel it out. This leaves you with 2(p+1)- 18= 0.

Next you'll need to pull out the terms to work with the beginning of the problem. 2(p+1)- 18= 0 would turn into 2p - 16  = 2(p - 8).

This would leave you with 2= 0, but that's not true so continue on to the variable.

So p - 8= 0 making the answer p = 8

7 0
3 years ago
How can you use division to find the decimal equivalent of a rational number
Kamila [148]

Answer:

To use division to find the decimal equivalent of a rational number, divide the top number by the bottom number. You will get a decimal number.

7 0
3 years ago
Type the correct answer in each box, Write the coordinates in the form (x, y). If necessary, use / for the fraction bar(s).
Blizzard [7]

Answer:

point a are (-10,-4) and point I are (-3.875,-10.125)

Step-by-step explanation:

8 0
3 years ago
A trough is filled with water. The trough holds 315 gallons. Each cubic foot of water contains about 7.5 gallons. The trough is
elena55 [62]

Answer:

The height of the trough is about 1.5 ft

Step-by-step explanation:

If each cubic foot of water contains about 7.5 gallons.

Then; 315 gallons is about \frac{315}{7.5}=42ft^3

Let h be the height of the trough, then

7\times 4\times h=42

This implies that;

28h=42

Divide both sides by 28 to get:

h=\frac{42}{28}

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The height of the trough is about 1.5 ft

4 0
3 years ago
PLEASE!!!!!!!!!!!!!!!!!!!!THIS IS DUE TODAY
rjkz [21]

3 + 1.75m

This represents 1.75 per mile plus a one time 3 charge.

Another way this can be written is

(1.75m + 6) - 3

This is a less efficient way, but represents the same. It is 1.75 per mile, this is plus 6, therefore we add the -3 outside the parenthesis so it evens out to +3 as the base charge.

Example: Lets say its 3 miles.

3 + 1.75 (3) = 8.25

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6 0
3 years ago
Read 2 more answers
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