Mathematics College

State the radius of this circle:
X^2 +Y^2=121

Answers

Answer 1

Answer:

radius = 11

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 121 ← is the equation of a circle centred at the origin

with r² = 121 , then

r = [tex]\sqrt{121}[/tex] = 11

Related Questions

David has one watermelon that weights 1867g. He splits it in half, and weights one half. That half weights 755g. How much does the other one weight?

Answers

Answer:

1112 grams

Step-by-step explanation:

1867-755=1112 g

Answer:

1112 grams.

Step-by-step explanation:

1867g - 755g = 1112 g

brainliest please. . . .

GUYS IS THIS CORRECT? CLASS 6 MATHS​

Answers

Answer:

yes these all are correct

x - 2/2 = 3x + 8/4

A. 12
B. -24
C. 16

Answers

It’s doesn’t look like any of the anwsers are right..

x-2/2=3x+8/4

x-1=3x+2

-x. -x

-1=2x+2

-2. -2

-3=2x

÷2. ÷2

-3/2=x

A farmer has 15 boxes of eggs
There are 6 eggs in each box.
Write, as a ratio, the number of eggs in three boxes to the total number of eggs.
Give your answer in its simplest form
Total

Answers

A farmer has 15 boxes of eggs and there are 6 eggs in each box. Therefore it will be part to whole. The bigger number is always the whole. 6:15 is the ratio.

A line passes through the point (2,8) and has a slope of 7

Answers

Answer:

y=7x-6

Step-by-step explanation:

Use point-slope equation.

y-y1=m(x-x1)

y-8=7(x-2)

y-8=7x-14

y=7x-6

Hey<3 If you help you’re amazing if you don’t you’re awesome.

Answers

Answer:  576

============================================================

Check out the diagram below.

I've split the figure into 3 separate blocks. We calculate the volume of each block, then add up those volumes to get the final answer.

Block A = largest block on the leftBlock B = middle blockBlock C = smallest block on the right

So,

volume of block A = length*width*height = 6*6*8 = 288 ft^3volume of block B = length*width*height = 6*6*5 = 180 ft^3volume of block C = length*width*height = 6*6*3 = 108 ft^3

Therefore, the total volume we're working with is:

A+B+C = 288+180+108 = 576 cubic feet

The "cubic feet" or "ft^3" portion is already taken care of by your teacher, so you just need to type in the number itself.

8+4 =17+5

identify and explain the error made by the leaner​

Answers

Answer:

let the value of x

Step-by-step explanation:

x=8+4=17+5

x=12=22x=22/12

x=1.8334

(a) I wanted to determine how much water my sprinkler was using, so I set out a bunch of empty cat food cans at various distances from the sprinkler and noted how high the water was in each can after one hour. My sprinkler reaches from 0 feet to 16 feet away from the sprinkler. The data are given in Table 1. The sprinkler distributes water in a circular pattern, so I assumed that points the same distance from the sprinkler received the same amounts of water. One way to use the data in Table 1 to estimate how many cubic feet of water my lawn got from my sprinkler in one hour is to write down an integral for the volume of water using the method of shells, and then use a right-endpoint Riemann sum to approximate this integral. Give your answer in decimal form rounded to the nearest cubic foot.
(b) My neighbor decided to collect the same data for her watering. Her sprinkler reaches from 0 feet to 21 feet away from the sprinkler, but she did not set out the cans at evenly spaced distances and so the calculation is a bit more complicated. The data are given in Table 2.Use the data in Table 2 to estimate how many cubic feet of water her lawn got from her sprinkler in one hour. Again, write down an integral for the volume of water using the method of shells, and then use a right-endpoint Riemann sum with subintervals of different lengths to approximate this integral. Give your answer in decimal form rounded to the nearest cubic foot.

Answers

Answer:

a) 108 ft

Step-by-step explanation:

2pi (x*f(xi)........)*deltax

x is the point in the table

so for the first three points

2pi(2*f(2)+4*f(4)+6*f(6).....)*2

and so on for the rest

make sure you convert f(x) into feet, for example (2, 2.1) do 2.1/12

first point in equation

2pi(2*(2.1/12)+....)*2

yall what is this? I dont really know what to do

Answers

Answer:

you did it right

Step-by-step explanation:

Tbh you were actually correct

Directions: Find the slope of the lines graphed below.
1.
2.

Answers

we know,

slope = y_2 - y_1/x_2 - x_1

1.

according to the graph given points are,

(2,1) and (0,3)

now,

→ 3 - 1/0 - 2

→ 2/-2

→ -1

therefore, slope of the given graph is -1.

2.

according to the graph given points are,

(-6,2) and (0,1)

now,

→ 1 - (-6)/0-2

→ 7/-2

→ -3.5

therefore, slope of the given graph is -3.5 OR in fraction form it is 7/-2.

3.

according to the graph given points are,

(2,2) and (0,4)

now,

→ 4 - 2/0-2

→ 2/-2

→ -1

therefore, slope of the given graph is -1.

hope this answer helps you dear...take care and may u have a great day ahead!

55+622-525-51×512

Simplification.​

Answers

Answer:

=–25960

Step by step explanation:

=677−525−(51)(512)

=152−(51)(512)

=152−26112

=−25960

Answer:

=–25960

Step by step explanation:

=677−525−51 512

=152−51 512

=152−26112

=25960

The regular price of a skateboard is $74.99.
Find the sale price when the skateboard is reduced by:
a) 30% b) 25% c) 60% d) 50%
Calculate each sale price, including taxes of 13%.

Answers

Answer:

a)$62.2417

b)$65.9912

c)$39.7447

d)$47.2437

Step-by-step explanation:

a)100%-30%=70%

70%+13%=83%

83/100x74.99=62.2417

b)100%-25%=75%

75%+13%=88%

88/100x74.99=65.9912

c)100%-60%=40%

40+13=53

53/100x74.99=39.7447

d)100%-50%=50%

50+13=63%

63/100X74.99=47.2437

Hope this helps! Thanks.

Let A = {x : 2x² + 3x - 2 = 0} and B = {x : x² + 3x - 4 = 0 } find (A U B) × (A Π B)​

Answers

Given :

A = {x: 2x² + 3x - 2 = 0 } B = {x : x² + 3x - 4 = 0 }

To find :

(A U B ) × (A Π B )

Solution :-

The first set is ,

A ={x : 2x² + 3x - 2 = 0}

Solving the Quadratic equation ,

2x² + 3x - 2 = 0 2x² + 4x - x - 2 = 0 2x( x + 2) -1( x + 2 ) = 0(2x -1) ( x + 2) = 0 x = 0.5 , -2

Hence ,

A ={0.5, -2}

The second set is ,

B ={ x :x² + 3x - 4 = 0 }

Solving the Quadratic equation ,

x² + 3x - 4 = 0 x² + 4x - x - 4 = 0 x( x + 4)-1 ( x +4) = 0 (x + 4) ( x -1) = 0 x = 1 , -4

Hence ,

B ={1,4}

Now ,

A U B = { 0.5 , 1 , 4 , -2} A Π B = {∅ }

Since AΠ B is a null set , hence ,

A × B = {∅}

im stuck pls help me​

Answers

I think you’re right hope you get it and can I have branliest for trying

You deposit $9000 in an account that pays 5% interest compounded quarterly.

A. Find the value of one year

B.Use the future value formula for simple interest to determine the effective annual yield
(Formula: A=P(1 +rt)

Answers

Step-by-step explanation:

Given:

Deposit P = $9000Interest rate r = 5% = 0.05Time t = 1 yearNumber of compounds n = 4

A. Find the value of one year

[tex]A = P(1 + r/n)^{nt} = 9000(1+0.05/4)^4=9458.51[/tex]

B.  Use the future value formula for simple interest to determine the effective annual yield

[tex]A=P(1+rt)\\[/tex][tex]r=(A/P-1)/t[/tex][tex]r=(9458.51/9000-1)/1=0.0509[/tex] r = 5.1%

Answer:

A)  $9458.51

B)  5.09%  (2 d.p.)

Step-by-step explanation:

Part A

Compound Interest Formula

[tex]\large \text{$ \sf A=P\left(1+\frac{r}{n}\right)^{nt} $}[/tex]

where:

A = final amountP = principal amountr = interest rate (in decimal form)n = number of times interest applied per time periodt = number of time periods elapsed

Given:

P = $9000r = 5% = 0.05n = 4 (quarterly)t = 1 year

Substitute the given values into the formula and solve for A:

[tex]\implies \sf A=9000\left(1+\frac{0.05}{4}\right)^{4 \times 1}[/tex]

[tex]\implies \sf A=9000(1.0125)^4[/tex]

[tex]\implies \sf A=9458.508032...[/tex]

Therefore, the value of the account after 1 year is $9458.51.

Part B

Simple Interest Formula

A = P(1 + rt)

where:

A = final amountP = principalr = interest rate (in decimal form)t = time (in years)

Given:

A = $9458.51P = $9000t = 1 year

Substitute the given values into the formula and solve for r:

[tex]\implies \sf 9458.51=9000(1+r(1))[/tex]

[tex]\implies \sf 9458.51=9000(1+r)[/tex]

[tex]\implies \sf \dfrac{9458.51}{9000}=1+r[/tex]

[tex]\implies \sf r=\dfrac{9458.51}{9000}-1[/tex]

[tex]\implies \sf r=0.050945...[/tex]

[tex]\implies \sf r=5.0945... \%[/tex]

Therefore, the effective annual yield is 5.09% (2 d.p.).

297,060 ÷ 0.0004839 =

Answers

Answer:

613,887,166.76999

Step-by-step explanation:

hshsididodj bdnd

dbdbjdjd

nsbbdbd

bdbbdhd

Answer:

[tex]297,060 ÷ 0.0004839 =613887166.77[/tex]

Find the median of the data set.
2, 33, 23,37,45, 5,49, 27,48

A) 33
B)45
C)29.9
D)5

The answer that is in blue is mine but I’m not sure if it’s right

Answers

A) 33

To find the median we have to order the numbers lowest to highest and see what’s in the middle, so;
2, 5, 23, 27, [33], 37, 45, 48, 49

Which of the following is the graph of y=sqrd-x-3?

Answers

>> Answer

___________

[tex] \: [/tex]

y = [tex]\sqrt{-x - 3}[/tex]

graph in picture!

Pls help ASAP I’ll brainlest

Answers

EXPERIMENT

PROBLEM

CONCLUSION

INFERENCE

The answer above is correcttttttt

find the fractional form of sixty tow
seventh ​

Answers

sixty tow seven is not a number.

what is the value of p(x)=4x+15 ?

Answers

Answer:

The answer is 10x

Step-by-step explanation:

Which ordered pair is a solution of the equation?
7x – 2y = -5

Answers

Answer:the answer should be (1,5)

Step-by-step explanation:

In a group of 97 students, the number of students taking programming is twice the number of students taking math. There are 53 students taking exactly one of these subjects, and 15 are taking neither of these subjects. How many students are taking math? How many students are taking programming? In a group of 97 students, the number of students taking programming is twice the number of students taking math. There are 53 students taking exactly one of these subjects, and 15 are taking neither of these subjects. How many students are taking math? How many students are taking programming?

Answers

The number of student taking math is 37 while the number of students taking programming is 74

Universal set = 97

let

The number taking math = x

The number taking programming = 2x

The number of students that take exactly one subject = 53

The student taking neither of the subject = 15

The number of students taking only maths will be

x - n(m ∩ p)

The number of students taking only programming will be

2x - n(m ∩ p)

let

n(m ∩ p) = y

Therefore,

x - y + 2x - y = 53

3x - 2y = 53

Also,

97 = x + 2x - y + 15

3x - y = 82

Therefore,

3x - 2y = 53

3x - y = 82

-y -(-2y) = 82 - 53

y = 29

3x - 29 = 82

3x = 82 + 29

3x = 111

x = 111/3

x = 37

Finally,

number of students taking maths = 37

number of student taking programming = 37×2 = 74

Check similar problem on sets: https://brainly.com/question/16132324?referrer=searchResults

please help need this done by tomorrow thank you [PHOTO]​

Answers

4x + 4° + 4x - 32° = 180°
8x - 28° = 180°
8x = 180° + 28°
8x = 208°
x = 26°

Please help. I am not sure how to solve. Please include step by step. Thank you for the help!

Answers

Answer:

[tex]h = \frac{V}{\pi r^{2}}[/tex]

h = 4 cm

Step-by-step explanation:

Given the formula for the volume (V) of a cylinder: V = πr ²h, and the following values for volume and radius:

V = 36π cm³

r = 3 cm

First, solve for h:

V = πr ²h

Divide both sides by πr ²:

[tex]\frac{V}{\pi r^{2} } = \frac{\pi r^{2}h}{\pi r^{2} }[/tex]

[tex]h = \frac{V}{\pi r^{2}}[/tex]

Next, solve for the height of the cylinder by substituting the given values for volume and radius into the formula:

[tex]h = \frac{V}{\pi r^{2}}[/tex]

[tex]h = \frac{36\pi }{\pi (3^{2})}[/tex] → π cancels out.

[tex]h = \frac{36}{9}[/tex]

h = 4 cm

The prize of a television was reduced from $250 to $200.
By, what percentage was the price of the telivision
reduced?
F 20%
G 25%
H 80%
J 50%

Answers

Answer: F 20%

Step-by-step explanation:

50 is 20% of 250

How do you write 3.866 x 10^15 in standard form?ASAP BRAINLIST ​

Answers

Answer:

3866000000000000

Step-by-step explanation:

you move the decimal 15 spaces to the right

What is the midpoint of CD?

Answers

Answer:

The endpoints of the line segment CD are:

$$C=(x_1,y_1)= (-4, 8) \\ D= (x_2,y_2)= (8, -4) $$

We find the midpoint using th

if y=6 when x=40 find x when y=24

Answers

Answer:

160

Step-by-step explanation:

24/6=4

4 x 40 = 160

x is 160 when y is 24

Answer:

160

Step-by-step explanation:

Let x be... well x

24 ÷ 6 = 4

40 × 4 = 160

OR

40÷6 ≈6.66

6.6666666... × 24 = 160

help me guys I need help ?​

Answers

Answer:

The answer is D. Hope this helps

The Answer is D- (-4,21/2)
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