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3 years ago

General form of the equation of a circle with its center at (-2, 1) and passing through (-4, 1)

1 answer:

6 0

hello :<span>
<span>an equation of the circle Center at the A(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²
in this exercice : a = -2 and b = 1 (Center at the A(-2,1))
r = AP......P( -4 , 1)
r² = (AP)²
r² = (4+2)² +(1-1)² = 36
an equation of the circle that satisfies the stated conditions.
Center at </span></span> A(-2,1), passing through P(-4, 1) is : (x+2)² +(y-1)² = 36

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Write a problem that can be solved by comparing feet and inches using a model. Include a solution. Explain why you are changing

agasfer [191]

Example Problem:
Billy goes to the nurse and she says Billy is 4 Feet 6 Inches. Billy's mom wants to know how many inches tall Billy is. How tall is Billy on Inches?

Solution:
Billy is 54 Inches tall.
=(4 × 12) + 6
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Explanation:
You are converting the larger unit to the smaller one because you are trying to find how tall Billy is in inches and you know Billy is 4 feet 6 inches, so you need to convert 4 feet to inches.
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2 years ago

A circular plate has circumference 16.3 inches. What is the area of this plate? Use 3.14 for pi.

serg [7]

Answer:

C = 2πr = 16.3

2(3.14)r = 16.3

r = 16.3/6.28

r = 2.5955414

Area: A = πr2

A = 3.14(2.5955414)2

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Step-by-step explanation:

The answer would be 21.2 $in^{2}$

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3 years ago

X and Y are loss random variables, with X discrete and Y continuous. The joint density function of X and Y is f(x, y) = [(x+1)e-

STALIN [3.7K]

Answer:

The probability that the total loss, X + Y is less than 2 is P=0.235

Step-by-step explanation:

We know the joint density function:

$f(x,y)=\frac{(x+1)e^{-y/2}}{12}$

To find the probability that (X+Y)<2, we can divide this in two steps.

- When X=0, Y should be less than 2. This is P(X=0,Y<2).

- When X=1, Y should be less than 1. This is P(X=1, Y<1).

We can calculate P(X=0,Y<2) as:

$P(X=0,Y$

We can calculate P(X=1,Y<1) as:

$P(X=1,Y$

Then

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3 years ago

What is the slope of this equation: y = -5x + 4

tekilochka [14]

Answer:

Slope = -5

Step-by-step explanation:

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3 years ago

Plz help me to answer

Anton [14]

Answer:

H=2 r=1

Step-by-step explanation:

P= 2h+4r + πr = π+8

h= π+8- πr -4r/2

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2 years ago