Complete the following proof.

Complete The Following Proof.

Answers

Answer 1

Answer:

BD = CA ⇒ Proved down

Step-by-step explanation:

From the given figure

∵ AB and CD are diameters in circle O

OB = OA = OC = ODradii

∵ AB ∩ CD at O

∴ ∠BOD and ∠COA are vertically opposite angles

∵ The vertically opposite angles are equal in measures

m∠BOD = m∠COA

→ In Δ OBD and Δ OCA

∵ m∠BOD = m∠COA ⇒ vertically opposite angles

∵ OB = OC ⇒ radii

∵ OD = OA ⇒ radii

Δ OBD and Δ OCA are congruent by SAS postulate

→ From congruency

BD = CA


Related Questions

A cougar jumped a distance of 13 yards. How many inches did this cougar jump?​

Answers

Answer:

468 in

Step-by-step explanation:

Step 1: Define conversions

3 feet = 1 yard

1 foot = 12 inches

Step 2: Use dimensional analysis

[tex]13 \hspace{3} yards(\frac{3 \hspace{3} feet}{1 \hspace{3} yard} )(\frac{12 \hspace{3} inches}{1 \hspace{3} feet} )[/tex] = 468 inches

Find the measure of the missing angle

Answers

Answer:

M1=108° M2=72°

Step-by-step explanation:

M1 and the original 108° angle are equal, and to calculate M2, which is on the same straight line as the original 108°, we must remember that all angles on a straight line add up to 180°. So, 180-108=72, making M2 72°

how to find the area figure of square inches​

Answers

It is length times width in^3

The lines y = 3x + 4 and y = 3x - 17 are perpendicular

Answers

Answer: No

Step-by-step explanation: Here's something that I learned. Same slope different y-intercept (no solution). Same slope and same y-intercept (Infinitely many solutions). Different slope and same y-intercept (one solution). Different slope and different y-intercept (one solution).

A bookshelf at a bookstore is 3 feet 9 inches wide. There are 18 copies of the same book on the shelf, which fit the shelf exactly. What is the width of 1 of the books?

Answers

Answer:

5 / 2 inches OR 2.5 in

Step-by-step explanation:

3 ft 9 in = 45 inches

45in/18 books

5 in / 2 book

Help me out fast on this question.

Answers

The third one 15.5x2.3

pls help <3 thank you sm ;)

Answers

a = 7 have a good day!

Mike has at least 250 in his savings account.Which inequality represents this situation

Answers

What is the situation??

Which area of this sound wave represents a compression?

A)A

B)B

C)C

D)D

Answers

Section E because as u can see it is compacted

Answer:

c

Step-by-step explanation:

on usa test prep

In 1980, the number of high school dropouts in a country was 5217 thousand. By 2008, this number had decreased to 3120 thousand. Find and interpret the average rate of change

per year in the number of high school dropouts.

Answers

Answer:

74893 students per year

Step-by-step explanation:

The Average rate of change is calculated as

= Difference in number of students / Difference in years

= 3120 thousand - 5217 thousands/ 2008 - 1980

= (3120000 - 5217000)/(2008 - 1980)

= -2097000/28

= -74892.857143 per year

Therefore, the average rate of change

per year in the number of high school dropouts is approximately 74893 students per year

A recipe calls for 18 ounces of cream cheese with 15 ounces of sugar." How many ounces of cream cheese are there per ounce of sugar?
PLEASE HELP

Answers

Answer:

1.2

Step-by-step explanation:

Just divide

Answer:

1.2

Step-by-step explanation:

Divide 18 by 15 and get the answer.

HELPPPPPPPPPPPPPPPPPPP

Answers

Answer:

15

Step-by-step explanation:

In 1998, Susie Maroney set a record for the longest ocean swim without flippers. She swam 122 miles from Mexico to Cuba. Use a conversion factor to find the distance in feet. 1mile=5280 feet

Answers

Answer:

it's 644160 u need to times it if she swam 122 miles and each mile is 5280 and u answer is 644160

Why do we use coordinate planes to do
transformations and dilations?

Answers

Answer: a coordinate plane is used in order to track the location of the object.

Translations are congruence transformations that move an object, without changing its size or shape

Dilations are transformations that generate an enlargement

Step-by-step explanation:

1.) 4x+2y-z=21
2.) -x-2y+2z=13
3.) 3x-2y+5z=70

Answers

Answer:

Step by Step Solution:

More Icon

Reformatting the input :

Changes made to your input should not affect the solution:

(1): Dot was discarded near "2.-".

(2): "133.3" was replaced by "(1333/10)".

Too Many Equal Signs

Step-by-step explanation:

Find constants a , b, and c such that the function

y = ax2 + bx + c satisfies the differential equation y′′ + y′ − 2y = 4x2.

Answers

Answer: a = -2, b = -2, c = 1.

Step-by-step explanation:

We know that:

y = a*x^2 + b*x + c.

Then:

y' = 2*a*x + b

y'' = 2*a.

Then we can write the equation:

y′′ + y′ − 2y = 4x^2.

as:

2*a + 2*a*x + b - 2*(a*x^2 + b*x + c) = 4*x^2

To solve this, the first step is moving all the terms to the same side:

2*a + 2*a*x + b - 2*a*x^2 - 2*b*x - 2*c - 4*x^2 = 0

Now let's group terms with the same power of x.

(-4 - 2*a)*x^2 + (-2*b + 2*a)*x + (-2c + b) = 0

Now, this must be zero for all the values of x, then the parenthesis must be equal to zero:

-4 - 2*a = 0

-2*b + 2*a = 0

-2*c + b = 0

From the first equation:

-4 - 2*a = 0

-4 = 2*a

-4/2 = a

a = -2

And from the second equation:

-2*b + 2*a = 0

2*a = 2*b

a = b

b = -2.

From the third equation we have:

-2c + b = 0

-2c = b

c = b/-2 = -2/-2 = 1.

c = 1

Then our equation is:

y = -2*x^2 - 2*x + 1.

if angle 4 equals 50 degrees find the measure of angle 5 will mark brainiest​

Answers

Answer:

∠5 = 50°

Step-by-step explanation:

its alternate internal angles:

∠4 ≅ ∠5 (angle 4 is congruent or equal to alternate internal angle)

therefore,

∠5 = 50°

The measure of angle 5 should be considered as the 50 degrees when angle 4 should be equivalent to 50 degrees.

What is alternate internal angles?

Alternate interior angles should be created via intersecting the 2 parallel lines in a transversal way. It should be located that lies between the two parallel lines.

Since the given diagram shows the alternate internal angles

Since angle 4 is 50

So angle 4 should be congruent or equivalent to alternate internal angle)

So angle 5 should be 50 degrees.

learn more about an angle here: https://brainly.com/question/21103473

At a sale this week, a suit is being sold for $306 . This is a 15% discount from the original price.
What is the original price?

Answers

Answer:

260.1

Step-by-step explanation:15% of 306=45.9

306-45.9=260.1

Answer:

351.9

Step-by-step explanation:

x/306=15/100. then I cross multiplied. And when I do I get 100x/100=4590/100.

I cross out the 100/100 and I leave with x, then I divide 4590 with 100 and get 45.9. So x=45.9.

Then I added the price it was sold..=306+45.9=351.9

American Black Ducks migrate a great distance every year. A typical bird will travel 2,739 miles in 33 days. Which of the following best represents this trip with a constant unit rate of travel? 7.4A

Answers

Answer:

Rate of travel = 83 miles per day

Step-by-step explanation:

Given:

Total distance = 2,739

Number of days = 33 days

Find:

Rate of travel

Computation:

Rate of travel = Total distance / Number of days

Rate of travel = 2,739 / 33

Rate of travel = 83 miles per day

What polyhedron can be assembled from this net? Explain how you know.

Find the surface area of this polyhedron. Show your reasoning.

Answers

Answer:

It would be a triangular prism.

Step-by-step explanation:

We know this because of the two triangles at the top and bottom of this net and the rectangle connecting them. Then, if you imagine folding the second rectangle up, it would be one of the triangle's sides. Lastly for the third rectangle, it would be folded over the two triangles to finish the shape.

I hope this helps!!

Answer:

It would be a triangular prism

Step-by-step explanation:

If they ask how you got that say since the triangles at the top and bottom are both parell and to be a prim you need to have parell sides

I NEED THIS ANSWER QUICK PLEASE!!!!!!!!!!
During the first hour of a snowstorm, 1 2/8 inches of snow fell. In the next hour, 4 3/8 inches fell. In the third hour, the snow stopped and 1 inch of snow melted. How much snow was on the ground at the end of the third hour?

Answers

Answer:

1 + 4 = 5

4/8 +3/8 = 7/8

5 7/8 - 7/8 = 5 inches left on the ground after 3 hours

Step-by-step explanation:

Q. Alex is managing an assembly line
creating precision drill bits. The number of
drill bits created is in the chart above. What
is the mode number of drill bits created?
bits​

Answers

Answer:

i put 65 but that was not the correct answer

Step-by-step explanation:

Answer: 20

Step-by-step explanation:

If you pls help lol I only have 52 mins left

Answers

Step-by-step explanation:

[tex]2y + 106 = 180[/tex]

[tex]y = 106 \div 2 = 53[/tex]

[tex]y = 53[/tex]

[tex]4z + 16 = 180[/tex]

[tex]4z = 180 - 16[/tex]

[tex]z = 164 \div 4 = 41[/tex]

and the answer for x is 106

Can anyone tell me if u pass the ela state exam but u didn't pass the math state exam can u still go to 9th grade cuz im in 8th please answer and my grades are always good so does it help? and my classwork etc is always around 80-100 is it good

Answers

i think u can still go to 9th grade because overall ur a good student who does their class work . if by chance u cant can u redo the state test?

Kevin bought a used guitar at a garage sale for $150. He fixed it up and sold it for $200. What was the percent increase?
(Need explanation to show my work)

Answers

Answer:

33.3

Step-by-step explanation:

You need to divide 200  and 150 to get you 4/3. Then you will have to _____________________________

If Megan's tuition, fees, and expenditures for books this year total $19,000, what will they be during her senior year (three years from now),
assuming costs rise 7 percent annually? Round Future value of a Single
Amount in intermediate calculations to four decimal places.

Answers

Answer:

$23,275.817

Step-by-step explanation:

To get this answer, multiply 19,000 by 1.07.

$19,000 x 1.07 = 20,330 (one year later)

$20,330 x 1.07 = $21,753.10 (two years later)

$21,753.10 x 1.07= $23,275.817 (three years later)

The answer round to cents would be $23,275.82

PLZ HELP!!!!!
how can 28/8 be a decimal?

Answers

Answer:

What is 28/8 as a decimal you ask? Converting the fraction 28/8 into a decimal is very easy.

To get 28/8 converted to decimal, you simply divide 28 by 8. Don't worry. You don't need to get the calculator out, because we did this for you.

28/8 as a decimal is:

3.5

Find two numbers who’s product is 132 and whose sum is 23

Answers

Answer : The two numbers are 11 and 12.

What is the value of x? Round to the nearest tenths place....

Answers

Answer:

x = 12.64911064

Step-by-step explanation:

a^2 + b^2 = c^2

8^2 + b^2 = 14^2

36 + b^2 = 196

Can someone help me solve this?

Answers

Answer:

2313

Step-by-step explanation:

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