Mathematics High School

The diagram shows a circle with centre O.a)Find the radius of the circle.b)Find the angle OCB.​

The Diagram Shows A Circle With Centre O.a)Find The Radius Of The Circle.b)Find The Angle OCB.

Answers

Answer 1
Angle= 90 Degree
And radius will be 3.8cm

Related Questions

In a movie theater 150 feet long, the floor is sloped so there is a difference of 30 feet between the front and back of the theater. What is the angle of elevation to the nearest degree? ​

Answers

Answer:

90

Step-by-step explanation:

Answer:

the angle of elevation is 11.537 degrees

Step-by-step explanation:

There are 160 cal in 4 ounces of ice cream how many calories will be in 6 ounces of ice cream

Answers

Answer:

There will be 240 calories in 6 ounces of ice cream.

Step-by-step explanation:

Well if you take 160 and divide it by 4 you would get 40.

Meaning every ounce is 40 calories. 1 ounce = 40 cal.

40 x 6 = 240 calories.

A movie theater charges $5 for an adult's ticket and $2 for a child's ticket. One Saturday the theater sold
785 tickets for $3280. How many child's tickets were sold?

Answers

Answer:

Assuming all the tickets are children's tickets, (1,640)

Step-by-step explanation:

3,280/2=1640

Find the value of h .

Answers

Answer:

xowowo2o2oeoddoxxocckckcll

Question is on picture

Answers

Answer:

4 or 4/1 (both the same thing just with plotting point writing 4/1 is easier for me so I know to go up 4 over 1 :) )

Step-by-step explanation:

Parallel lines have the same slope, so both lines will have the same slope. Use line 1’s points to find the slope with the formula

(y1-y2)/(x1-x2)

(5-1)/(-2-(-3)

4/1=4

Match the vocab word with the definition.

Answers

Answer:

1. = the first one

2. = the third one

3. = the second one

Step-by-step explanation:

Please answer correctly !!!!!!!!!!!!!!!! Will
Mark brainliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Since the lines are parallels and should equal 180 degrees, with the other being 140 degrees, I would think it's 40 degrees to make the 180. I hope  this is right. It's been a while for geometry.

The equation of the line in slope intercept form is....

Answers

Answer:

y=1/3x+45 I think

Step-by-step explanation:

Find the value:
-10 + (-12)+(-5)

Answers

Answer:

-27

Step-by-step explanation:

its just the big think :D

Answer:

-27

Step-by-step explanation

pretty self explanatory

Felix has $50 in a savings account that earns 5% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?

Answers

Answer:

$55.13

Step-by-step explanation:

50 * 1.05 = 52.5

We do this step twice because the interest is for 2 years.

52.5 * 1.05 = 55.125

This rounds up to 55.13, your final answer!

Caleb and Landon work at a dry cleaners ironing shirts. Caleb can iron 30 shirts per hour, and Landon can iron 15 shirts per hour. Caleb worked 2 more hours than Landon and they ironed 330 shirts between them. Write a system of equations that could be used to determine the number of hours Caleb worked and the number of hours Landon worked. Define the variables that you use to write the system

Answers

Answer:

The system of the equations is x - y = 2, 2x + y = 22, where x is the number of hours that Caleb worked and y is the number of hours that Landon worked

Step-by-step explanation:

Assume that Caleb worked for x hours and Landon worked for y hours

∵ Caleb worked for x hours

∵ Landon worked for y hours

∵ Caleb worked 2 more hours than Landon

→ That means Caleb hours = Landon hours + 2

∴ x = y + 2

→ Subtract y from both sides

∴ x - y = 2 ⇒ (1)

∵ Caleb can iron 30 shirts per hour

∵ Landon can iron 15 shirts per hour

∵ They ironed 330 shirts between them

→ Multiply x by 30 and y by 15, then equate their sum by 330

∴ 30x + 15y = 330

→ Divide both sides by 15 to simplify the equation

∴ 2x + y = 22 ⇒ (2)

The system of the equations is x - y = 2, 2x + y = 22, where x is the number of hours that Caleb worked and y is the number of hours that Landon worked

ILL MARK U BRAINLIEST!!!

Answers

Answer:

i think the anwser is the 2nd one

Step-by-step explanation:

The next day, Kiran read for x minutes, and Andre read for 1/10 less than that. Write an equation that relates the number of minutes Kiran read with y, the number of minutes that Andre read.

Answers

Answer:

y - 1/10 = x

Step-by-step explanation:

y = # minutes read Kiran

x = # minutes read Andre

What is the value of x in the equation ? (image below)

Answers

Answer: 2

Step-by-step explanation:

2.5(6x-4)=10+4(1.5+0.5x) [Work out the brackets]

15x-10=0+6+2x [Solve]

15x-10=16+2x [Convey the terms]

15x-2x=16+10 [Add up the same terms and calculate]

13x=26 [Divide both parts]

x=2

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

2.5(6x - 4) = 10 + 4(1.5 + 0.5x)

Step 2: Solve for x

Distribute:                                   15x - 10 = 10 + 6 + 2xCombine like terms:                   15x - 10 = 16 + 2xSubtract 2x on both sides:        13x - 10 = 16Add 10 to both sides:                 13x = 26Divide both sides by 13:             x = 2

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    2.5(6(2) - 4) = 10 + 4(1.5 + 0.5(2))Multiply:                               2.5(12 - 4) = 10 + 4(1.5 + 1)Subtract/Add:                      2.5(8) = 10 + 4(2.5)Multiply:                               20 = 10 + 10Add:                                     20 = 20

Here we see that 20 does indeed equal 20.

∴ x = 2 is a solution of the equation.

(6x - 4y = 11
6x + 14y= -12
How can you represent the system of equations with a matrix

Answers

the answer will be 6x + 14—12 because if you divide them together you will get 12

Plsss help!! Will give brainliest to the person with most explanation and best answer! 30 POINTS!

Answers

Answer:

Was I supposed to answer something like this?

Answer:

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Step-by-step explanation:

The cost for a box of cereal is $1.25. The store is selling the box of cereal for 1 point
$2.25. What is the percent of markup? *

Answers

:

Ss

Step-by-step explanation:

The graph of the function y = 3(x - 2)^3 + 7 is translated 2 units to the
right and then 4 units down. Write the equation of the final graph.​

Answers

Answer:

y = 3(x - 4)^3 + 3

Step-by-step explanation:

Given function

y = 3(x - 2)^3 + 7

Translation to the right achieved by adding - 2 to x-value

Translation down achieved by adding -4 to y-value

So the function becomes:

y = 3(x - 2  - 2)^3 + 7 - 4 ⇒y = 3(x - 4)^3 + 3

NEED HELP ASAP, WILL GIVE BRAINLIEST

Which are the two geometric means between 175 and 1.4?

a.
0.2, 0.04

b.
1.4, 0.0112

c.
35, 7

d.
131.25, 65.625

Answers

Answer:

The answer is C. 35, 7

CAN SOMEBODY HELP ME?
I’ll mark brainliest answer because nobody is helping me.

Answers

Answer:

-415

Step-by-step explanation:

its going back 5 every time. -5*86=-430 but you have to take away the 3 spots since you already have them filled. 86-3=83. 83*-5=-415

Slope Is --3, and (1, 2) is on the line.
The equation of the line is y

Answers

Answer:

y= -3x + 5

Step-by-step explanation:

Use the equation of a line formula:

y- y1 = m(x - x1)

where y1 and x1 are the y and x coordinates from the given point (1,2)

So y1= 2

x1= 1

And where m is the slope, -3

Plug in to get y-2 = -3(x-1)

Simplify and solve for y

y= -3(x-1)+2

y= -3x +3 +2

y = -3x + 5

i need help please -2 + 7b - 4b

Answers

Answer:

-2+3b

Step-by-step explanation:

Is this table proportional or non-proportional? Explain your reasoning to why this table is proportional or non-proportional.

Answers

Non proportional hope this helps :)

What is the circumference of the given circle?

Answers

Answer:43.98

Step-by-step explanation:

c = 2 pie r = 2 • pie • 7 = 43.98

43.98

I got it right

ANSWER CORRECTLY AND YOU WILL GET BRAINLIEST WORTH IT
Write a proportion to find how many points x a student needs to score on a test worth 80 points to get a test score of 80%

Answers

64

80               80

thats how you havw to put it

Answer:

80/100 is 80%

Step-by-step explanation:

In a practice for athletics, Fred rides his bicycle for 18km in 45 minutes and then runs half as far in twice the time. What is his average speed for his practice?
show full working

Answers

Answer:

11.25km

Step-by-step explanation:

9km in 1 hour and 30 minutes is 4.5km in 45 minutes so the average of 18km and 4.5km is 11.25km.

X (0,6) y (-3,15) what are the slope and y intercept

Answers

Answer:

y = -3/9x + 6

Step-by-step explanation:

slope = -3/9x

y-intercept = 6

Fun World charges $10.00 for admission plus $2.50 per hour to rent ice skates. IceLand charges $7.00
for admission plus $4.00 per hour to rent ice skates. Write an equation to find h, the number of hours
for which the total cost is the same at both skating rinks. Then solve the equation and state what the
cost is for that number of hours.
Equation:
h =
Cost for that number of hours(substitute h into one equation)
(-4)

Answers

Answer:

2.50x+7.00=10.00+4.00x

Step-by-step explanation:

The number of radians in a 540-degree angle can be written as aft, where a is a constant, What
is the value of a ?

Answers

Answer:I think Im not sure

But i will try 540 degress can be written as aft

Step-by-step explanation:

Answer: a=3

Step-by-step explanation:

trust

please answer need help on quiz will give brainliest answer

Answers

Answer:

A. (3,0) min

Step-by-step explanation:

Have a great day!

Other Questions
When using a number line to model addition, what does the first integer in a subtraction problem tell you?It tells you where to begin on the number line. It tells you what you how much money you have! Oxidation of 1-pentanol could produce 1-pentanal and 1-pentanoic acid how do I figure this out In a personal narrative what kinds of dictation should you include PLEASE I WILL GIVE YOU BRAINLIESTRewrite these sentences. Make them more interesting by adding adverbs and adjectives.Remember, in order to think up adjectives, find the nouns in the sentence and ask Which one? What kind? or How much? To think up adverbs, find the verb and then ask When? Where? How? or Why?1. The girls were playing near the street.2. The gorilla ran through the forest.3. The man drove to work.4. The woman prayed for her son.5. The musicians practiced.1. The girls were playing near the street. 2. The gorilla ran through the forest. 3. The man drove to work. 4. The woman prayed for her son. 5. The musicians practiced. THANKS who owned the missions? i will give brainlistMexicoTexasSpain Please help!!!!! look at the picture What does the entropy of a reaction describe? Which two pairs of lines best develop the themes of the passage? Where wilt thou go, my harassed heart What thought, what scene invites thee now Could I have lingered but an hour, It well had paid a week of toil; THAT was the scene, I knew it well; I knew the turfy pathway's sweep, My hour of rest had fleeted by, And back came labor, bondage, care. But what on earth is half so dear So longed foras the hearth of home? Supply oxygen to the blood.14. All of the following are accurate statements about the respiratory system EXCEPT1. When you inhale, air rushes into your body.2. When you exhale, air containing carbon dioxide moves through the nose ormouth.3. Oxygen in the air moves into your bloodstream.4. The diaphragm is a tube in the throat that takes air to and from the lungs. Which of the following is the correct equation for the graph shown? *10 pointsCaptionless Image The Green River grunge band utilized which of the following to create a newand unique sound?A. Two drummersB. Consonant harmonyOC. Guitar distortion and feedbackOD. Varied instrumentation A 120-kg roller coaster cart is being tested on a new track, and a crash-test dummy is loaded into it. The roller coaster starts from rest at point A which is 35 m above the ground. The cart is observed to roll down the track to point B, which is 10 m above the ground. In your own words, what physics ideas would you be able to use to predict how fast the cart is moving at point B? What calculations would you use, what things would you be measuring, and what physics principles or laws would you use to make this calculation? 48 dividido por 4? Please help me yallll please A sound wave with a power of 8.8 104 W leaves a speaker and passes through section A, which has an area of 5.0 m2.What is the intensity of sound in this area? (Intensity = I = )1.8 104 W/m21.8 106 W/m21.6 104 W/m21.6 106 W/m2Mark this and return What government system - type of government- form in Turkey? Air is to fly whiles water is to? A teacher explains to her students that during mitosis, all the cells divide into two daughter cells and each daughter cell has the same number of chromosomes. Which TWO of the following responses explains how this happens? Help!! Skeletal muscle movements are results of _________ of muscles working __________ . (will give brainlest)