Find the area of sector with a radius of 4 and a central angle of 30 degrees.

Answers

Answer 1

Answer:

Step-by-step explanation:

[angle of sector]/360 x π x radius ² [formula to find area of a sector]

30/360 x π x 4²

Type into a calculator

4.18879


Related Questions

Please help me please

Answers

Answer:

2

_

3

Step-by-step explanation:

i think at least hopefully

In degrees, what is the measure of hmp

Please help, this is timed!
Please and thank you :)

Answers

56* your welcome!! This is such a hard lesson to learn!

If 70% of a number is 42 and 15% of the same number is 9, find 85% of that number.

Answers

Answer:  51

Step-by-step explanation:

let x be the number.

(70%)x = 42

0.7 x = 42

x = 60

we check 15% x 60 = 0.15 x 60 = 9, which is true.

85% of that number = 85% x 60 = 0.85 x 60 = 51.

Answer:

51

Step-by-step explanation:

Help plz I’ll mark brainliest

Answers

Answer:

The Answer Is A

Step-by-step explanation:

I’m pretty sure is A sorry if it’s wrong..

PLEASE HELP ILL MARK BRAINLIEST!!! Find the area & circumference of the circle. Use pi=3.14

Answers

Answer:

The circumference is either 31.2π OR ≈98.0176908. cm

The area is 243.36π cm^2 OR ≈764.537988 cm^2

I HOPE MY ANSWER HELPED PLEASE GIVE BRAINLIEST :)

i will love you if u please answer this question PLSS

Answers

Answer:

On the dive boat deck

Step-by-step explanation:

This is above the water level and water level is considered to be 0

pls love me <3

The graph of a line and and exponential intersect twice, once, or not at all. Describe the possible number of intersections of each of the following pairs of graph. Your solution to each part should include all of the possibilities and a quickly sketched example of each one. (Part 1)(SHOW WORK)

a. A line and a parabola

b. Two different parabolas

Answers

a) A line can intersect a parabola at 2 points, 1 point, or no points respectively. The only possible way at which it intersects at 1 point, would be if it were tangent to the parabola. [Check first attachment]

b) Two different parabolas can intersect at 2 points, 1 point or no points respectively. [Check second attachment]

It is possible for 2 parabolas to intersect at 4 and even 3 points. But one of the parabolas would be on it's side. You can consider those cases.

Guys!!! Please help!! Geesh I need help

Answers

Answer:

42

Step-by-step explanation:

9 - 4 = 5

8 - 5 = 3

9 + 2 + 3 + 7 + 8 + 3 + 4 + 6 = 42

Answer:

Its 42 ;l

Step-by-step explanation:

In a survey of favorite pets, 45 students said they preferred cats. This was 30% of the total number of students surveyed. How many students took the survey?​

Answers

Answer:

150 students

Step-by-step explanation:

45/30= 1.5 which equals 1%.

multily 1.5 x 100 = 150 students

The bar graph shows the height of a plant each month for four months. Your friend concludes that the height of the plant in Month 4 is 3
times its height in Month 1. Is this conclusion accurate? Explain.

Answers

Answer:

I can't see the pic or I can't answer sorry

Step-by-step explanation:

No, because the height in month one was twelve centimeters, while the height in month four was 24 centimeters. This conclusion is not accurate because 12 times 3 is 36, not 24.

The angles of a triangle are (x - 5), (x + 15)°
and (2x + 10). Given that the sum of the
angles of a triangle is 180°, calculate the size
of each angle.​

Answers

Answer:

35°, 55°, 90°

Step-by-step explanation:

Since all the angles of a triangle equal 180, add them all together and set them equal to 180.

(x-5)+(x+15)+(2x+10)=180

Now solve for each angle.

(40-5)

=35°

(40+15)

=55°

(2(40)+10)

=90°

Now check your work.

35°+55°+90°

=180°

Can somebody please tell me the answers? This is due today and I’m stuck. Thanks!

Answers

I think what you chose is correct, I MIGHT BE WRONG

answers / step-by-step explanation:

every single one of these equations false

3² = 2 * 2 * 2

is false since three multiplied by itself equals to 9 and 2 multiplied by itself 3 times equals to 8 and as you can see, they are not the same numbers

9 > 8

5^(3)=15

is also false since 5^(3) equals to 125 and 15 do not equal to each other since they are not the same number

125 > 15

8^(1 )=7^(1)  

is the easiest one because it is basically just asking if 8 = 7 and to answer that question, it doesn't

8 > 7

hope this helps you and i hope i wasnt late!  :)

Write an expression with the same meaning as "7 less than the square of a number."

Answers

Answer:

x²-7

Step-by-step explanation:

x²-7

Someone help I WILL GIVE BRAINLIEST!!!!

Answers

Answer:

It is D

The one you have chosen is the correct answer.

Step-by-step explanation:

A flying squirrel's nest is 12 feet high in a tree. From its nest, the flying squirrel glides 13 feet to reach an acorn
that is on the ground. How far is the acorn from the base of the tree? Draw a picture and show your work.

Answers

Answer: the answer should be 5

if you draw a right triangle 12 would be the line that goes up (A) and 13 would be the slanted line (C) so that leaves the bottom line to be C.

hope this helps!

Step-by-step explanation:

[tex]A^{2} +B^{2} =C^{2} \\12^{2} +B^{2} =13^{2} \\144+B^{2} =169\\-144 -144\\\sqrt{B^{2} } =\sqrt{25} \\ B=5[/tex]

A fair cube has 2 blue sides, 2 red sides, and 2 green sides.
What is the probability of rolling a blue or red side?

Answers

4/6 or 2/3. All you need to do is add the amount of blue and red sides from the cube and divide it by the total number of sides on a cube.

You can also say 66%

Hope this helps!! :)

If 3 students eat 2 pizzas how many pizzas are needed for 54 students

Answers

Answer:

18 pizzas

Step-by-step explanation:

Please help me i can’t solve this

Answers

Answer:

8 to the third power inches squared

Step-by-step explanation:

well

4 to the third power is

4 x 4 x 4 which equals 64

then

2 to the third power

2 x 2 x 2 = 8

64 x 8 = 512

finally

8 x 8 x 8 = 512

Answer -
To find a area of a rectangle you need to multiply it’s height by it’s width.
Multiply the base if the exponents are the same.

4^3 x 2^3 = 8^3
The second option.


I think .....

A tool box has the dimensions of 9 in by 3 in by 6 in. If Rick plans to double all three dimensions to build a larger tool box, he believes he would double the volume of the tool box. Is he correct?

Answers

Answer:

No; it will not double the volume of the box

Step-by-step explanation:

if we subtract the smallest two digit number from the largest two digit number we get​

Answers

Answer:

Largest two digit number - smallest two digit number

99-10

89

pls Mark as brainliest

A survey found that 68% of students do their homework before 10:00 P.M. Predict how many students out of 1,095 do their homework before 10:00 P.M.

Answers

Answer:

744.6 or if you round it 745

Step-by-step explanation:

Step 1: Divide 1095 by 100

In this case, the number that we are "comparing" to 100 is 1095, so we must first normalize the number by dividing it by 100. The operation we have to solve is this:

1095/100= 1095÷100= 10.95

Step 2: Multiply 10.95 by 68 to get the solution

Now that we have our normalized number, 10.95, we just have to multiply it by 68 to get our final answer. The forumla for this is obviously quite simple:

10.95×68= 744.6

at a farm the ratio of the number of hens to the number of ducks is 3:5 there are 125 ducks at the farm how many hens are there on the farm​

Answers

3 : 5

x : 125

125 ÷ 5 = 25

25 × 3 = 75

no. of hens = 75

It is 75 dude goodluck!!

Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres per hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?

Answers

9514 1404 393

Answer:

  20 minutes

Step-by-step explanation:

The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...

  time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes

PLEASE HELP D:

What is the area of a triangle that has a height of 10 feet and a base length of 8 feet?

A - 10 feet^2
B - 20 feet^2
C - 40 feet^2
D - 80 feet^2

Answers

Answer:

C. 40 ft²

Step-by-step explanation:

Triangle area formula:

A = bh/2, where b- base, h- height

We have:

b = 8 ft, h = 10 ft

The area is:

A = 8*10/2 = 40 ft²

Correct choice is C

What are some things that might be necessary to know in order to solve problems involving quadratic regression?

Answers

Answer:

When given a set of data, we can use our graphing calculator to generate the quadratic regression equation. This is the equation that best fits a set of data, using a quadratic model.

Step-by-step explanation:

got a 100%

The things which are necessary to know in order to solve problems involving quadratic regression are data, correlation coefficient and quadratic equation.

What is quadratic regression?

The quadratic regression is the statistical process which is used to obtain the equation of parabola, to represent the data set in the most appropriate way.

The things which are necessary to know in order to solve problems involving quadratic regression are listed below.

The most important thing for approaching quadratic regression problem is visualize the data.Make a proper table with x and y values with the data. These values should form a parabola for the quadratic regression.Find the correlation coefficient. The closer the value of correlation coefficient to 1, the data good fit into the quadratic equation.Least square method is the best way to solve the problems involving quadratic regression.

Thus, the things which are necessary to know in order to solve problems involving quadratic regression are data, correlation coefficient and quadratic equation.

Learn more about the quadratic regression here;

https://brainly.com/question/25794160

hi please help......​

Answers

Answer:

9/20

Step-by-step explanation:

45%=45/100

hope this helps

Solve triangle ABC. (Round your answers to one decimal place.)
∠A =
13.5
°
∠B =
63.9
°
∠C =

Answers

< A + < B + < C = 180
13.5 + 63.9 + < C = 180
< C = 102.6

oscar earns extra money, m, working two weekends with his uncle. he is saving to buy a new scooter that costs $138. Fantasia says that Oscar needs to earn more than ​$7 each hour he works to have enough money to buy the scooter. Explain why she is incorrect.

Answers

Answer:

Step-by-step explanation:

30

For the following right triangle, find the side length x.

Answers

I gotcha! Don’t worry about his link! The side length x is 20. The following picture below is how I solved this problem!

Which statement is true?
A. (1,1) is the x- and y-intercept of the
function.
B. (0,1) is the x- and y-intercept of the function.
C. (0,0) is the x- and y-intercept of the function.
D. The function has no intercepts.

Answers

Answer:

C. (0,0) is the x- and y-intercept of the function.

Step-by-step explanation:

It is because the function is passing through the origin.

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