a circle has a diameter of 3.8n cm. what is the area of the circle?

Answers

Answer 1

Answer:

11.34 cm.

Step-by-step explanation:

have a nice dayyy!! :)


Related Questions

Quadrilateral ABCD has vertices AC-3.6), B(6,0), C(9. -9), and D(0, -3). Prove that ABCD is a) a parallelogram​

Answers

9514 1404 393

Explanation:

The quadrilateral will be a parallelogram if the diagonals bisect each other. That will be the case if the sums of their end-point coordinates are the same.

  A + C = (-3, 6) +(9, -9) = (6, -3)

  B + D = (6, 0) +(0, -3) = (6, -3)

Both diagonals have their midpoint at (3, -1.5), so the diagonals are mutual bisectors. The figure ABCD must be a parallelogram.

___

The midpoint of AC is (A+C)/2 = (6, -3)/2 = (3, -1.5).

Given that r = 7x+7y find x when y = 2 and r = 8

Answers

Answer:

x = -6/7

Step-by-step explanation:

We must substitute in the values and solve for x

[tex]r = 7x + 7y\\(8) = 7x + 7(2)\\8 = 7x + 14\\8 - 14 = 7x + 14 - 14\\-6 = 7x\\-6/7 = 7x/7\\x = -6/7[/tex]

5/9 - 2/5 = and what is 1/2-1/9 =

Answers

Answer: 7/45, 7/18

Step-by-step explanation:5/9 - 2/5 = 25/45 - 18/45 = 25 - 18/45 = 7/45

and 1/2 - 1/9 = 9/18 - 2/18 = 7/18

A group of 5 friends sold lemonade. If they sold each cup for $0.50 on Friday and for $0.45 on each other day of the week, how much money did each friend make if they split the money evenly?

Answers

Answer:

$5.81

Step-by-step explanation:

IM GETTING RIPPED TONIGHT R.I.P THAT ****** AYEEEE

Answers

Answer:

she not with him tonight

she not with Jim tonight

she in the gym tonight

Answer:yes

Step-by-step explanation:

Apply the distributive property to create an equivalent expression.
(15 + 10)

Answers

Answer: 5(3+2)

Step-by-step explanation: and once you distribute that it gives you (15+10) so that’s how you know it’s right hope it helped

(sorry if it’s wrong lol )

helpppp pleaseeeee.....-.....

Answers

Answer:

answer attached

Step-by-step explanation:

(-8 , 12) and (36 , -21)

Which of the following whole numbers has a square root between 5 and 6?

37, 44, 56, or 27

Answers

Answer:

27

I'm not sure how to explain it

if a=-4h^2-h+5 and b=8h-3h+12 find a-b

Answers

Answer:

4h^2-6h-7

Step-by-step explanation:

[tex](4h^{2} -h+5) - (8h-3h+12)\\4h^{2} -h+5 - 8h+3h-12\\4h^{2}-9h+3h-7\\4h^{2}-6h-7\\[/tex]

Which line is parallel to the line y=x+7?

1) x+y=-2
2)x=1
3) x-y=5
4)y=1

Answers

Answer:

3

Step-by-step explanation:

to find the parallel  of this line we need to find function with same slope

1) x+y=-2 ⇒ y=-x-2

2)x=1    

3) x-y=5  ⇒ y=x-5

4)y=1

so third

if f(x) is [tex]cos x sin 3x[/tex] then f' at (π/6) is

a) 1/2
b) - √3 / 2
c) 0
d) 1
e) - 1/2

Answers

Answer:

A) 1/2

Step-by-step explanation:

PLZ HELP!!! I'm begging you! Problem: If each letter of the alphabet is worth two more numbers than the number before it (1=1, 2=3), what is the entire alphabet worth?

Answers

Answer:

676

Step-by-step explanation:

I think this is an arithmetic series, so

Sn = 26/2[2(1) + (26 - 1)2]

Sn = 13[2 + 50]

Sn = 13[52]

Sn = 676

Answer:

676

Step-by-step explanation:

A = 1

B = 3

C = 5

D = 7

...

Z = 51

              1   + 3    + 5   + 7    + 9 + 11  + 13  + 15  + 17  + 19 + 21 + 23 + 25

(+)       + 51 + 49 + 47 + 45 + 43 + 41 + 39 + 37 + 35 + 33 + 31 + 29 + 27

---------------------------------------------------------------------------------------------------

          52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52 + 52

13 * 52 = 676

Answer: 676

A, B & C lie on a straight line. D, C & E lie on a different straight line. Angle y = 117° and angle z = 63°. Work out x

Answers

Consider the below figure attached with this question.

Given:

A, B & C lie on a straight line. D, C & E lie on a different straight line.

[tex]\angle y=117^\circ,\angle z=63^\circ[/tex]

To find:

The value of x.

Solution:

A, B & C lie on a straight line.

[tex]m\angle ABD+m\angle DBC=180^\circ[/tex]    (Linear pair)

[tex]y+m\angle DBC=180^\circ[/tex]

[tex]m\angle DBC=180^\circ-y[/tex]

According to the exterior angle theorem, the measure of an exterior angle of a triangle is equal to the sum of two opposite interior angles.

[tex]m\angle DBC+m\angle BDC=m\angle BCE[/tex]        (Exterior angle theorem)

[tex]180^\circ-y+z=x[/tex]

[tex]180^\circ-117^\circ +63^\circ =x[/tex]

[tex]126^\circ =x[/tex]

Therefore, the value of x is 126 degrees.

hiii please help i’ll give brainliest:)

Answers

Answer:

oligarchy

Step-by-step explanation:

You purchased a new hoodie. You found a coupon on the
internet that allowed you to take 40% off the price. The original
advertised price of the hoodie was $18.98. If the tax rate is.
6.5%, what would be the final cost of the hoodie?

Answers

Answer:

12.13

Step-by-step explanation:

18.98 take 40% off

11.39

11.39 plus 6.5 tax = 12.13

The total tax was 0.74

Hope this helps!!

Have a great day!!!!!

Alex has a pile of 2p coins. She swapped exactly half of them for the same number of 10p coins.
Now she has £4.20
How much money did alex have initially?

Answers

Answer:

£8.4

Step-by-step explanation:

Since she swapped half and now has £4.20, then multiply that by 2

                                                     4.20 × 2 = 8.4

Alex initially had £8.4

The initial amount of Alex's 2p coins is £8.40

Let the initial worth of 2p coins = y

Half of y = y/2 The value of y/2 = £4.20

The amount of money Alex had initially = y

We can then solve for the worth of y, which is the titla amount Alex had initially ;

y/2 = £4.20Multiply bith sides by 2 (y/2)×2 = £4.20 × 2 y = £8.40

Therefore, the amount of money Alex had initially is £8.40

Learn more : https://brainly.com/question/18109354

A cylinder with a base diameter of x units has a volume
of zor cubic units.
Which statements about the cylinder are true? Select
two options
The radius of the cylinder is 2x units.
The area of the cylinder's base is Ax2 square units.
The area of the cylinder's base is žm1x2 square units.
The height of the cylinder is 2x units.
The height of the cylinder is 4x units.

Answers

2nd opinion that’s your answer

Answer:

its B and E

Step-by-step explanation:

I already did the review


There are 45 students in a class. If 60% of them are girls, find the number of girls and boys


please help me i am requesting I will mark u as brain list

Answers

Number of girls-27
Number of boys-18

60% of 45 is 27 which is the number of girls.So now you have to subtract 27 by the total which will give you 18

Step-by-step explanation:

here's your solution

==> Total number of students in class = 45

==> percentage of girls in class = 60%

==> number of girls in class = (60/100)*45

==> number of girls = 27

==> number of boys = 45 - 27

==> number of boys = 18

hope it helps

Which transformation can be used to prove that this parallelogram is symmetrical?

Answers

is there a photo attached?
If you reflect the parallelogram, it should prove it

The coach of a baseball team counts
240 males and n females in the
bleachers. She determines that 80%
of the male and female spectators
are fans of the home team. The coach
writes an expression 0.80n + 192 to
represent the number of home team
fans. Is the coach correct? PLEASE HELPPP!

Answers

Answer:

No

Step-by-step explanation:

He is An Idiot

On Monday the price for bottled water was 2 bottles for $3.68. On Saturday the price was 5 bottles for $9.55. Which day had the higher unit price?

Answers

Answer:

Saturday

Step-by-step explanation:

Monday was 1.84

saturday was 1.91

Answer:

Saturday

Step-by-step explanation:

Monday was 1.84

Saturday was 1.91

a man saves Rs 5400 in a month which is 30% of his monthly income. how much does Spain in a month??​

Answers

Answer:

solution in attachment

hope it helps

Ayana made a scale drawing of the auditorium. The scale she used was 5 inches : 3 feet. The actual length of the stage is 51 feet. How long is the stage in the drawing?
pls help me I NEED THIS ASAP

Answers

Answer:

85in

Step-by-step explanation:

Answer these questions

Answers

Answer:

well well well

Step-by-step explanation:

dont cheat on live classwork pls

Polynomials are written with the exponents of the terms in_____order.

Answers

Answer:

descending order, meaning standard form.

Step-by-step explanation:

Ex: x^2-5x+2

or

Ex: 2x^3 -5x^2 -2x +3

tell me if it doesn't make sense

Determine the volume of the rectangular prism.

Answers

Answer:

50 ft³

Step-by-step explanation:

We know the formula for a rectangular prism is length × width × height

We also know all the sides so we can rewrite the formula replacing variables.

The length is 8, the width is 2[tex]\frac{1}{2}[/tex] and the height is 2[tex]\frac{1}{2}[/tex]

8 × 2[tex]\frac{1}{2}[/tex] × 2[tex]\frac{1}{2}[/tex]

Multiply which ever way is easy for you. I am just multiplying from left to right.

8 × 2[tex]\frac{1}{2}[/tex] = 20

20 × 2[tex]\frac{1}{2}[/tex] = 50

Now we get 50. Before we put our answer as 50, there are two more steps.

First we need to add the measurement unit which is feet or ft

We also need to add ³ since it is volume

50 ft³ is our final answer

Plz, help everything is in the picture!

Answers

Answer:

$5469.49

Step-by-step explanation:

Year >> Starting balance >>         prt            >>         Interest                      

1                    4200         4200*1.045 = 4389          4389 - 4200 = 189

2                   4389         4200*1.045² = 4586.51    4586.51 - 4200 = 386.51      

3                   4586.51     4200*1.045³ = 4792.90   4792.90 - 4200 = 592.90

4                   4792.90    4200*1.045⁴ = 5008.58   5008.58 - 4200 = 808.58

5                   5008.58    4200*1.045⁵ = 5233.96   5233.96 - 4200 = 1033.96  

6                   5233.96    4200*1.045⁶ = 5469.49   5469.49 - 4200 = 1269.49

More help is appreciated:))

Answers

Step-by-step explanation:

You need to translate all the points to the right 3 and up 6

Therefore, you are going to use this formula:

(x,y) ⇾ (x + 3, y + 6)

This is the same format as the previous problem, if you have noticed.

Using this, plug in each coordinate, starting with  P (5, -1)

(5, -1) ⇾ ( 5 + 3, -1 + 6)

(5, -1) ⇾ ( 8, 5 )

P[tex]^{1}[/tex] = (8, 5)

Now point Q, (0, 8)

(0, 8) ⇾ (0 + 3, 8 + 6)

(0, 8) ⇾ ( 3, 14 )

Q[tex]^{1}[/tex] = (3, 14)

And last but not least, the point R, (7, 5)

(7, 5) ⇾ (7 + 3, 5 + 6)

(7, 5) ⇾ ( 10, 11 )

R[tex]^{1}[/tex] = (10, 11)

Therefore, P[tex]^{1}[/tex] = (8, 5), Q[tex]^{1}[/tex] = (3, 14), R[tex]^{1}[/tex] = (10, 11) is your answer. This is the 4th option or D.

Hope this for you to understand this a bit more! =D

Based on the statment, below which statement could be used to prove <1=<2?
vertical angles are congruent
supplementary angles are congruent
complementary angles are congruent
two angles that form a linear pair are congruent

Answers

Answer:

Vertical angles are congruent

hii please help asap ill give brainliest thanks

Answers

Answer:

The decimal number system in use today was first recorded in Indian mathematics.

Step-by-step explanation:

In the classical period of Indian mathematics (400 AD to 1200 AD), important contributions were made by scholars like Aryabhata, Brahmagupta, Bhaskara II, and Varāhamihira. The decimal number system in use today was first recorded in Indian mathematics.

Answer:

Decimal point system.

Step-by-step explanation:

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