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3 years ago

The endpoints of a diameter of a circle is (-1,3) and (3,1). Find the center and radius of the circle.

Mathematics

2 answers:

lina2011 [118]3 years ago

3 0

Option C: center (1,2) and radius sqrt 5

Inessa05 [86]3 years ago

3 0

Here is the answer to the question.

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A person's blood type is denoted with the letters A, B, and O, and the symbols + and - . The blood type A+ is read as A pos

postnew [5]

Answer:

(a) O+ to A+

$O+:A+=90:45$

$O+:A+=18:9$

$O+:A+=2:1$

(b) AB- : AB+

$AB-:AB+ = 6:4$

$AB-:AB+ = 3:2$

$AB-:AB+ = 12:8$

(c): B+ to total

$B+ : Total = 20 : 195$

$B+ : Total = 4 : 39$

$B+ : Total = 40 : 390$

Step-by-step explanation:

Given

$A+ = 45$ $B+ = 20$ $AB+ =6$ $O+=90$

$A-=21$ $B-=0$ $AB-=4$ $O-=9$

$Total = 195$

See attachment

Required

Solving (a): O+ to A+

We have:

$A+ = 45$

$O+=90$

So, the ratio is:

$O+:A+=90:45$ ---- first comparison

Divide by 5

$O+:A+=90/5:45/5$

$O+:A+=18:9$ ---- Second comparison

Divide by 45

$O+:A+=90/45:45/45$

$O+:A+=2:1$ ---- Third comparison

Solving (b): AB- to AB+

We have:

$AB+ =6$

$AB-=4$

So, the ratio is:

$AB-:AB+ = 6:4$ ---- first comparison

Divide by 2

$AB-:AB+ = 6/2:4/2$

$AB-:AB+ = 3:2$ ---- Second comparison

Multiply by 2

$AB-:AB+ = 6*2:4*2$

$AB-:AB+ = 12:8$ ---- Third comparison

Solving (c): B+ to total

We have:

$B+ = 20$

$Total = 195$

So, the ratio is:

$B+ : Total = 20 : 195$ ---- first comparison

Divide by 5

$B+ : Total = 20/5 : 195/5$

$B+ : Total = 4 : 39$ ---- Second comparison

Multiply by 2

$B+ : Total = 20*2 : 195*2$

$B+ : Total = 40 : 390$ ---- Third comparison

4 0

3 years ago

What is the probability of spinning an odd number on the spinner below?

Ket [755]

If the spinner has an odd number of numbers on it, The probability or spinning an odd number will vary

4 0

3 years ago

For any value of x, the sum <br> 3<br> ∑ k(2x-1) <br> k=0<br> is equivalent to

MArishka [77]

The equivalent value of the sum for any value of "x" is 12x - 6

<h3>How to find the sum of functions?</h3>

Given the sum of the expression as:

∑ k(2x-1)

k=0

We need to take the sum of the function at the point where k = 0 to 3

∑ k(2x-1) = 0(2x-1) + 1(2x - 1) + 2(2x-1) + 3(2x - 1)

k=0

∑ k(2x-1) = 2x-1+4x-2+6x-3

k=0

∑ k(2x-1) = 12x - 6

k=0

Hence the equivalent value of the sum for any value of "x" is 12x - 6

Learn more on sum functions here: brainly.com/question/24295771

8 0

2 years ago

Jacob figured out that he could change the zero of a linear equation by changing its slope. If the slope in the equation y = 2x

Ganezh [65]

Answer: The zero will be at 2 when the line hit the x-axis

Step-by-step explanation:

Caculate

6 0

3 years ago

Read 2 more answers

Joe ate 1/2 of a pound of peanuts in 1/3 of an hour.

saul85 [17]

Answer:

1 1/2 lbs and 2 1/4 lbs

Step-by-step explanation:

4 0

3 years ago