Work out the area of a circle with a radius 7.5cm take pie to be 3.142. Give your answer 2 decimal places

Answers

Answer 1

Answer:

176.74 cm^2

Step-by-step explanation:

Area of a circle is πr^2

r= 7.5

π= 3.142

Area=3.142× 7.5^2

= 3.142 × 56.25

= 176.74 cm^2

Hence the area if the circle is 176.74cm^2


Related Questions

Which ordered pair is a solution to the inequality?

Answers

Answer:

C.

Step-by-step explanation:

The equation would be -3 is less than 3(1)+1, which is 4. And -3 is less than 4.

(hope this helps!)

The points (1, 4) and (0, 2) fall on a particular line. What is its equation in slope-intercept
form?

Answers

y = 2x + 2

that is your slope intercept equations

Isabel gets 50 dollars a week as an allowance. If Isabel goes to the mall and spends $12 on shorts and $8 on a t-shirt, what percent of his allowance did he spend?

Answers

The percentage he spent is 40%

Rewrite the expression using only positive integer exponents.

Answers

Best option I think is B

Figure ABCD is transformed to figure A′B′C′D′:

a. Angle D prime A prime B prime.

b. Angle A prime B prime C prime.

c. Angle B prime C prime D prime.

d. Angle C prime D prime A prime.

Answers

Answer:

D. <C'D'A'

Step-by-step explanation:

Given that figure ABCD is transformed to figure A′B′C′D′, therefore the angles of ABCD would be congruent to the corresponding angles of A′B′C′D′.

<CDA corresponds to <C'D'A'. Therefore:

<CDA = <C'D'A'

(5x - 2y + 1) - (7x - 3y - 4)​

Answers

Answer:

-2x - (-1y) - (-3)

Step-by-step explanation:

Answer:

-2x + y + 5

Step-by-step explanation:

(5x - 2y + 1) - (7x - 3y - 4)

1) Distribute the negative sign and remove all parenthesis

5x - 2y + 1 - 7x + 3y + 4

2) Combine all like terms

-2x + y + 5

To solve the trigonometric inequality 2cos(x)+sin(x)-3/sin(x)<=3cot(x)-4csc(x) over the interval 0<=x<=2pi radians, Gabby performed the following steps, first simplifying the inequality and then setting both sides equal to y and graphing the equations.

In which step did she first make an error, and what was the error?

ANSWER: C

Answers

Answer:

C)

Step-by-step explanation:

right on edge (based on the person who asked the question)

What is 3/11 of 22/39?

Answers

Answer:

0.1538

Step-by-step explanation:

first convert 3/11 into a percentage

3÷11=0.272727272727273

0.272727272727273 × 100

27.272727272727/100

27.272727272727%

≈27.27%

27.27% of 22/39

change 22/39 into a decimal

22÷39=0.5641025641》0.564

27.27% of 0.564

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 27.27% * 0.564

Converting percent to decimal:

p = 27.27%/100 = 0.2727

Y = 0.2727 * 0.564

Y = 0.1538

Answer:

2/13

Step-by-step explanation:

3/11 of 22/39 is:

22/39 * 3/11 = 22/11 * 3/39 =2*1/13 =2/13

Write an equation of the line that
passes through (-1,2) with a slope of 4

Answers

Step-by-step explanation:

Hey there!

Given;

The points is; (-1 , 2) and slope is 4.

Note: Use one-point formula.

[tex](y - y1) = m(x - x1)[/tex]

~ Put all values.

[tex](y - 2) = 4(x + 1)[/tex]

~ Simplify it.

[tex](y - 2) = 4x + 4[/tex]

[tex]4x - y + 6 = 0[/tex]

Therefore, the required equation is; 4x-y+6=0.

Hope it helps...

What is 37-11+23? Have a great night guys!!!! #FREEPOINTS

Answers

Answer:

49 thanks have a awesome night/day

Answer:

37-11+23= 49

Have a good day

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 8 to 5. If there were
12,454 total votes, how many no votes were there?

Answers

Answer:

Step-by-step explanation:

4,790

Which expression has a value of 9 when x = 4?

Answers

Answer:

right top one

Step-by-step explanation:

3(8-5)=24-15=9

your heart pumps about 60ml of blood per minute. about how much blood will it pump in a week

Answers

10080 ml

          [tex]\\[/tex]

Answer:

604800ml of blood is pumped every week

Step-by-step explanation:

60×60=3600 (ml per hour)

3600×24=86400 (ml per day)

86400×7=604800 (ml per week)

What is the y-intercept of y = –2:+ 6? Choose 1 answer: (0, -2) (0,6) (-2,0) (6,0​

Answers

Answer:

A circle has the equation x2+ y2 + 2x - 2y - 34 = 0. Graph the circle using the center (h, k) and radius r. Find the intercepts, if any, of the graph. What are the intercepts? Select the correct choice below and fill in any answer boxes within your choice. The intercept(s) is/are . (Type an ordered pair. Use a comma to separate answers as needed. Type an exact answer for each coordinate, using radicals as needed.) There are no intercepts.

Show transcribed image text A circle has the equation x2+ y2 + 2x - 2y - 34 = 0. Graph the circle using the center (h, k) and radius r. Find the intercepts, if any, of the graph. What are the intercepts? Select the correct choice below and fill in any answer boxes within your choice. The intercept(s) is/are . (Type an ordered pair. Use a comma to separate answers as needed. Type an exact answer for each coordinate, using radicals as needed.) There are no intercepts.

Step-by-step explanation:

Answer:

[tex]y = - 2x + 6 \\ at \: y - intercept, \: x = 0 \\ substitute \: for \: x \: in \: th e \: equation \\ y = - 2(0) + 6 \\ y = 6 \\ y - intercept = (0,6)[/tex]

Which graph represents an exponential function?

Answers

Answer:

A simple exponential function to graph is y=2x . Notice that the graph has the x -axis as an asymptote on the left, and increases very fast on the right. Changing the base changes the shape of the graph. Replacing x with −x reflects the graph across the y -axis; replacing y with −y reflects it across the x -axis.

HURRRY PLEASEE.........A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)? |10| + |–4| |10| + |4| |–6| + |4| |10| + |–6|A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)? |10| + |–4| |10| + |4| |–6| + |4| |10| + |–6|

Answers

Step-by-step explanation:

D

i got it right on the quiz

love to help

Answer:the answer is D!

Step-by-step explanation:

Donald bought a bicycle that cost $50.00 when it was new. If he eventually sold it for
16% of the original cost, how much was it sold for

Answers

Answer:

$8

Step-by-step explanation:

ngl but thats cheap for a $50 bike. is the bike torn in half or somthing

What is factoring?
Show us an example of factoring when a=1
Show a second example when a does not equal 1.

Answers

Answer:

Factorizing is the part of math where you find out the equations.

Step-by-step explanation:

Answer:

Factoring is the process of trying to find a numbers factor.

Step-by-step explanation:

Ex: 6 is 2 × 3


Jennifer has $30. She goes to the food court to get food and drinks for
friends. Drinks are $2. Food is $3. How many drinks can Jennifer buy if she
buys no food?

Answers

she can buy 15 drinks

2 of 7
© Express in the form n :1
25:5
What is the answer?

Answers

Answer:

5:1

Step-by-step explanation:

n:1

25: 5

to get to five you multiple 1 by 5. You have to reverse the equation to n:1, so 25 divided by 5 is 5. So you'd answer would be 5:1 in the form of n:1.

helpppppppppppppppppppppp​

Answers

Answer:

309 inches squared

Step-by-step explanation:

bottom face: 40

left face: 96

right face: 104

front face: 30

behind face: 30

add them up

Area of Parallelogram

Answers

Answer:

area of a parallelogram = base * height

= 21 * 9

= 189 cm^2

hope it helps you

I want to find the side length and get the answer step by step

Answers

Answer:

76 is the length of this rectangle and the width is 72

Step-by-step explanation:

Sorry for the sloppy handwriting

Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Answers

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

Here, a = -9, b = 2 and c =3

Put the values,

[tex]c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69[/tex]

So, the solution are -0.47 and 0.69.

at school, the maximum number of students that can be in a class room is 22. if there are 25 students signed up for the geometry class, how many more students can join the class?​

Answers

Answer:

At school, the maximum number of students that can be in a class room is 22. There are 25 students signed up for the geometry class.

Therefore, there are (25-22)=3 extra students.

Hence, no more students can join the class.

PLEASE ANSWER ASASP IM DESPRATE IM BEGGING YOU I WILL MARK BRAINLEST!!!!!!!!!!!!!

The equation c = 2.5t represents the cost, c, for t tickets to the school play. Does a value of 3.5 for t make sense in this situation? Explain your reasoning.

Answers

Answer:

No. A ticket can't be split into 1/2 ,Right?

Helpppp fue on Monday major grade

Answers

Answer:

38 °

Step-by-step explanation:

a triangles total side add up to 180°

so, we subtract 180 - 106 = 74

then we subtract 74-36 = 38°

?= 38°

38 degrees is the answer

a math student is standing 40 feet from the base of a water tower. the angle of elevation from her horizontal line of sight is 72 degrees. If her "eye height" is 5 feet, how tall is the water tower? Round to the nearest foot.​

Answers

9514 1404 393

Answer:

  128 ft

Step-by-step explanation:

The height of the tower above eye-height is related to the angle by ...

  Tan = Opposite/Adjacent

  tan(72°) = (tower height above eye height)/(40 ft)

  tower height above eye height = (40 ft)×tan(72°) = 123 ft

Since eye height is 5 ft, the total height of the tower from the ground is ...

  tower height = eye height + height above eye height

  tower height = 5 ft + 123 ft

  tower height = 128 ft

In a certain chemical, the ratio of zinc to copper is 4 to 19. A jar of the chemical contains 646 grams of copper. How many grams of zinc does it contain?

Answers

Chemical and enlargement of reduction in okay 12

Simplify: -20b^8 + 2b^8
Enter the original expression if it cannot be
simplified.

Answers

Answer:

=-18b mini eight lol

Step-by-step explanation:

Other Questions
so i made all my alters write and muchi lol i can't even-oh and if you want to know what I mean by alters look up D.I.D write an equivalent expression to represent Bradens total earnings for this week.8h + 129 + 3h = ?h + ? Escoge la voz pasiva de la siguiente oracin.33. Pedro admira las obras de arte de Picasso. a. Las obras de arte de Picasso son admiradas por Pedro. b. Las obras de arte de Picasso son admirada por Pedro. c. Las obras de arte de Picasso son admirado por Pedro. d. Las obras de arte de Picasso son admira por Pedro.34.Sir Theodore limpi las coronas de la reina. a. Las coronas son limpiadas por la reina. b. Las coronas de la reina fueron limpias por Sir Theodore. c. Las coronas de la reina son limpias por Sir Theodore. d. Las coronas de la reina fueron limpiadas por Sir Theodore.35. Mi hermano alcanz la cspide de esa montaa.a. La cspide de esa montaa fue alcanzada por mi hermano. b. La cspide es alcanzada por esa montaa. c. La cspide de esa montaa fue alcanz por mi hermano. d. La cspide de esa montaa alcanza es por mi hermano. true or false 1. resistance provides friction to electron movement 2.high resistance will speed up electron movement 3.a circuit is an open path for electrons to move through 4. in a circuit, electrons move from the low voltage area to the higher5. in a circuit, the light bulb is called the load 74 students choose to attend one of three after school activities: football, tennis or running. There are 49 boys. 16 students choose football, of which 6 are girls. 28 students choose tennis. 8 girls choose running. A student is selected at random. What is the probability this student chose running? Give your answer in its simplest form Indicate the organ (or organ part) producing or releasing each of the hormones listed below. Ann already knew 4 appetizer recipes before starting culinary school, and she will learn 3 new appetizer recipes during each week of school. Write an equation that shows the relationship between the number of weeks w and the number of appetizer recipes a.PLS ANSWER AS QUICK AS YOU CAN! I WILL MARK YOU BRAINLIEST!!!! Please help with math! Giving a thanks 1.Ima New is a recent employee who initially requires 20 minutes to complete a job task. If she experiences an 80% learning rate, how much time will it take her to complete the sixth task If you could start an organization to help a cause or community in need, what issue would it address and why? Specimens are put on swings before being looked at under the microscope, true or false? Find the first four terms of the sequence given by the following.4,=(-1)".31%, n=1, 2, 3, ... How was the Soviet Union's foreign policy changed by Mikhail Gorbachev HELP PLEASE Which is the larger value: 2 x 106 or 9 x 105?Explain how you know. NEED THESE ANSWERS ASAP NO SCAMMING OR I WILL REPORT YOU which planets mass is nearly double that of mercury? It would take Marco 6 hours to paint a fence by himself. It would take Jaylyn 5 hours to paint the same fence by herself. Marco is creating this table to help him determine how long it would take them to paint the fence together. Which heading should be written above the first column of numbers? Rate (part/hour)Time (hours)Part of Fence PaintedDistance (meters) What is the solution to in (x^2 - 16) = 0? x square root of 17. x = 4. x = square root of 32. How many moles are in 99.5 grams of titanium? Round your answer to the nearest hundredth. Be sure to include units. Layne rode his bike from Point A to B by using Cherry Street. How much further would his trip have been if he took Orange Drive and Peach Avenue instead? 37 yards14 yards8 yards28 yards