a circle has a diameter 9cm

Pls help meeeeeeeeeeeeeeeeeeeeeee

Answers

Answer 1

Answer:

A=63.585 cm²

Step-by-step explanation:

Note : It is not given what to find so i am finding are of the circle.

D=9cm

r=D/2

r=9/2

r=4.5

Area of the circle :

A=πr²

A=π4.5²

A=63.585 cm²


Related Questions

3^-6x(3^3 divide 3^0)^2

Answers

Answer:

[tex] {3}^{2} [/tex]

Step-by-step explanation:

[tex]3^{ - 6} \times (3^4 \div 3^0)^2[/tex]

[tex] \frac{1}{ {3}^{6} } \times ( {3}^{4} \div {3}^{0} {)}^{2} [/tex]

[tex] \frac{1}{729} \times ( {3}^{4} \div {3}^{0} {)}^{2} [/tex]

[tex] \frac{1}{729} \times ( {3}^{4} {)}^{2} [/tex]

[tex] \frac{1}{729} \times 6561[/tex]

[tex] \frac{1}{729} \times (729(9))[/tex]

[tex]9[/tex]

[tex] {3}^{2} [/tex]

Hope it is helpful...

Find the area of the parallelogram 25 m 20 m

Answers

Answer:

500

Step-by-step explanation:

the sum of 25 and x is 48 find x. . Solve.

Answers

Answer:

x = 23

Step-by-step explanation:

Sum of 25 and x = 48

25 + x = 48

Subtract 25 from both sides

25 - 25 cancels out

48 - 25 = 23

We would be left with x = 23

Answer:

[tex]x =23[/tex]

Step-by-step explanation:

Sum of 25 and x

[tex]25 + x[/tex]

Sum of 25 and x is 48

[tex]25 + x = 48[/tex]

Now lets simply Solve the equation

[tex]25 + x = 48 \\ x = 48 - 25 \\ x =23[/tex]

Hope this helps you.

Have a nice day!

What is the quotient?
-4/5 divided by 2

Answers

Answer: -0.4

-(4/5) ÷2=-0.4

Explanation: The quotient is the answer to a division problem.

Answer:

-0.4

fraction form: -4/10 or -2/5

Brainliest to the best answer

Answers

Answer:

1

7

Is your answer dear .

Hope it helps you:)

Answer: 1/7

Step by step:

First divide the 1/49 to get 0.02040816326530612244897959183673 then take the square root of that number to get 0.14285714285714285714285714285714. Then plug in the numbers which after that your answer 0.14285714285714285714285714285714 or 1/7.

Hope this helps...

Have a great day.

The function h defined by h(t)=(49 + 4.9t)(10 - t) models the height, in meters, of an object t seconds after it is dropped from a helicopter.

Find or approximate the time when the object hits the ground. Explain your method.

Answers

10 seconds! you put in 0 for h, and then set the parentheses to equal zero. it can’t be negative, so it must be 10.

The approximate time when the object hits the ground will be 10 seconds.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The function is given below.

h(t) = (49 + 4.9t)(10 - t)

The time when the object hits the ground is calculated as,

h(t) =

(49 + 4.9t)(10 - t) = 0

If (49 + 4.9t) = 0, then the value of 't' is given as,

49 + 4.9t = 0

t = - 10

The value of time is an absolute value. Thus, this can be neglected.

If (10 - t) = 0, then the value of 't' is given as,

10 - t = 0

t = 10 seconds

The approximate time when the object hits the ground will be 10 seconds.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ3

Jeffrey made lasagna for dinner. He put the lasagna into the oven at 6:21 P.M. And took it out at 6:54 P.M. How long was the lasagna in the oven?

Answers

it was in the oven for 33 minutes. do

the lasagna was in for 33 minutes

Square ABCD has an area of 1600. E is the midpoint of AC and F is the midpoint of AB.
What is the area of the trapezoid BCEF?
O 300 square units
O 1,200 square units
600 square units
O 109 square units

Answers

The answer is C I believe

Based on the information marked in the diagram triangle PQR and triangle STU must be congruent

Answers

it’s true bc of aas postulate
Its true due to the question

i need help, an answer or how to- will be fine, thank you. (i’ll mark brainliest if i can)

Answers

by solving the first equation you'll get x= -24/13

if you solve the second option (B) then you'll the same result i.e x=-24/13

so option C is correct

Help plz..And No links!! I repeat No links!!

Answers

Answer:

6:18 i think

Step-by-step explanation:

6:18 because if you count the dots it’s on the 18th. the little hand is the hour and the big hand is the minutes. :)

Help me please, i need this answer I don't know what it is.

Answers

I think the answer has something to do with math

A chef got 9 bags of onions. The red onions came in bags of 6 and the yellow onions came in bags of 7. If the chef got a total of 59 onions, how many bags of each type of onion did he get?

Answers

Answer:

yellow = 5 bags

red = 4 bags

Step-by-step explanation:

two equations can be derived from the question

x + y = 9 equation 1

6x + 7y = 59 equation 2

where x = number of red onion bags

y =  number of yellow onion bags

Multiply equation 1 by 6

6x + 6y = 54 equation 3

subtract equation 3 from 2

y = 5

substitute for y in equation 1

x + 5 = 9

x = 9 - 5

x = 4

answer this pleasesssssss
eeeeeeeeeeeeeeeeee

Answers

Answer:

C is true.

Step-by-step explanation:

If you look at the model, the middle line in the box means the median and it is 7 so yeah! Hope this helped! Good Luck! :)

Answer:

I say the correct answer is "b" the minimum quiz score is 5.

Step-by-step explanation:

The correct answer I am choosing "b".

What is the volume of the prism shown?

A) 149.9 cubic inches
B) 268.2 cubic inches
C) 173.9 cubic inches
D) 291.8 cubic inches

Answers

Answer:

145.9 cubic inches

Step-by-step explanation:

The volume of a triangular prism is:

1/2 x length x width x height

Use the formula with the given dimensions:

1/2 x 5.27 x 8.13 x 6.81 = 145.8875655

Round it up to the nearest tenths:

145.8875655 —> 145.9

I hope this helps!

Answer:

145.9 cubic inches

Step-by-step explanation:

Given angel theta with cos theta < 0 and sin theta > 0, indicate the quadrant that theta lies in

Answers

bearing in mind that cos(θ) < 0, is just another way to say that cos(θ) is negative, and sin(θ) > 0, is just another way to say that sin(θ) is positive.

Check the picture below.

The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) using a point and the slope. Which point did Harold use?

(7, 3)
(0, 7)
(7, 0)
(3, 7)

Answers

Answer:

The point is (7,0).

Step-by-step explanation:

The equation of a linear function in point-slope form is as follows :

[tex]y-y_1=m(x-x_1)[/tex] ...(1)

Where

(x₁,y₁) are the coordinates of the point which  the line passes through it and (x,y).

Harold correctly wrote the equation y= 3(x–7)

or we can write it as :

y-0=3(x-7) ...(2)

Comparing equations (1) and (2), we get :

x₁ = 7 and y₁ = 0

So, the point is (7,0).

The correct option is (c).

Answer:

C

Step-by-step explanation:

edge

What is the answer for 2(n-1)+4n=2(3n-1)

Answers

Answer:

No solution

Step-by-step explanation:

2(n-1)+4n=2(3n-1)

2n-2+4n=6n-2

6n-2=6n-2

No solution

Answer:

0

Step-by-step explanation:

2(n-1)+4n=2(3n-1)

2n - 2 + 4n = 6n - 2

2n + 4n - 2 = 6n - 2

6n - 2 = 6n - 2

0 = 0

The electricity to run a refrigerator for a week costs $6.30. How much does it cost to run the refrigerator for 365 days?

Answers

Answer:  327.60 dollars

Explanation:

There are about 52 weeks in a year (note that 365/7 = 52.14)

So that means it costs a total of 52*6.30 = 327.60 dollars to run the fridge for a full year.

Answer:

It costs $328.50 to run the refrigerator for 365 days

Step-by-step explanation:

Recall that there are seven days in a week and 52 weeks in a year

The given rate is

$6.30

-----------

7 days

To find the cost of running the refrigerator for 365 days, multiply this given rate by 365 days:

$6.30

----------- * 365 days = $328.50

7 days

It costs $328.50 to run the refrigerator for 365 days (1 year, 52 weeks).

3x-6y=24 y=Mx+b form

Answers

Answer: y=(1/2)x-4

3x-6y=24
-3x -3x
-6y=-3x+24
Divide by -6
y=(1/2)x-4

You roll a standard six sided number cube. What is the probability of rolling a prime number or a number greater than 4?

Answers

4/6. Prime numbers 2,3,5 and the numbers 5 and 6 but you don’t include 5 twice so it would be 4 possible numbers out of 6 you can roll that are a prime number and that is greater than 4

What is the total are of the felt patch

A. 225 square cm

B. 405 square cm

C. 500 square cm

D.450 square cm

Answers

Answer:

B 405

(=20*9 + 25*9)

what are the blue-ish dots on your screen? :|

What value of x makes this proportion true?
3/x = 15/40
A. 5
B. 28
C. 8
D. 105

Answers

Answer:

here the value of X should be 8 to make this proportion true

3/8=15/40

by cross multiplying

15*8=40*3

120=120

therefore the option C is correct

Help me please i will give brainliest.

Answers

Answer:

1) 13 Students were surveyed

2) 3 students

3) 7 Students

4) 10 Books

Pls mark brainliest

Answer:

13 students were surveyed

3 students read 5 fiction books

7 students read more than 5 fiction books

The maximum number was 10

Step-by-step explanation:

Hope this helps

-Unbrand-

Sadly even though I answered first I didn't get any credit. Quite sickening.

in triangle PQR, m angle R = 32, p = 21, and q = 21. what is side lenth r? explain each step

Answers

Answer:

11.577 = r

Step-by-step explanation:

Comment

When you draw a sketch of this, <R is between p and q - - both of which are lines. The Cos law is the one you use.

Equation

r^2 = p^2 + q^2 - 2pq * Cos(R)

Givens

p = 21

q = 21

R = 32

r = ?

Solution

r^2 = 21^2 + 21^1 - 2*21*21 * Cos(32)     Substitute givens into the equation

r^2 = 441 +441 - 882 * 0.8480               Add the first two terms.

r^2 = 882 - 747.98                                 Multiply Cos(32)  by 2 * 21 * 21

r^2 = 134.02                                            Subtract 747.98 from 882

sqrt(r^2) = sqrt(134.02)                           Take the square root of both sides.

r = 11.577

Can someone please help me!!!

Answers

Answer:

Option C

Step-by-step explanation:

same logic as in 2D problems. if C wasn't true, then the two planes couldn't be parallel

Carroll bikes 1 kilometer east, 4 kilometers north, and then 5 kilometers east again. How far is Carroll from her starting position?

Answers

Answer:

10.5 km

Step-by-step explanation:

this can be solved using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

1² + 4² =

1 + 16 = 17

√17 = 4.123km

4² + 5²

16 + 25 = 41

√41 = 6.40 KM

total distance = 6.4 + 4.12 = 10.52

Find x. Round your answer to the nearest tenth of a degree.
16
х
12

Answers

Answer:

1.3

Step-by-step explanation:

tan(x) =16/12

=4/3

=1.33

=1.3

x=tan-1(1.3)

=52.4

What is the value of 2�� − (3�� + 1)2 when �� = −2? What is the value of 2�� − (3�� + 1)2 when �� = −2?

Answers

Answer:

7667

Step-by-step explanation:

Answer:

2+2=4

Explanation:

hold your hands up make sure you have 2 fingers up only on each. ( if this is hard to understand what i mean is do the peace sighn/bunny ears with both hands.) Now count how many fingers you are holding up and your answer should be 4.

PLZ HELP….

A music store originally purchased a piano at a cost of $892.03 and marked it up 125%. After a few weeks,
however, the store discounted the piano 50% in order to make room for new merchandise. What was the
discounted price?

Answers

The answer should be 1003.53

Answer:

$557.52

Step-by-step explanation:

Solve for marked up price:

892.03 × 1.25

1115.0375

Solve for discounted price:

1115.0375 × 0.50

557.51875

Round up to nearest hundredths place:

557.52

Your answer may vary depending on if you rounded your first answer (1115.0375), but it should be only a decimal or two off from my final answer.

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