A circle has a radius of 8cm use the value 3.1 for π to calculate the area of a sector of the circle if the angle at the center is 150°

Answers

Answer 1

Answer:

                [tex]8\frac23\ cm^2[/tex]

Step-by-step explanation:

sector of the circle if the angle at the center is 150° means  [tex]\frac{150^o}{360^o}[/tex] of full circle of given radius

area of a circle of given radius R is:  πR²

so area of given sector:

[tex]A=\dfrac{150^o}{360^o}\cdot \pi\cdot8^2=\dfrac5{12}\cdot3.1\cdot64=82,(6)=8\frac23\ cm^2[/tex]

Answer 2

The area of a sector of the circle if the angle at the center is 150° is 82.67 square centimeter.

What is a circle?

A circle is a locus of a point whose distance always remains constant from a given specific point. The general equation is -

x² + y² = r²      (for circle centered at origin)

Given is a circle has a radius of 8 cm.

The area of the sector subtending the angle 150° at center is -

A = (150/360) x 3.1 x 8 x 8

A = 82.67 square centimeter.

Therefore, the area of a sector of the circle if the angle at the center is 150° is 82.67 square centimeter.

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Related Questions

Six friends went to a restaurant and agreed to share the bill equally. However, two people forgot their wallets so the other four friends' portions of the bill went up by $7 each. How many dollars was the total bill?

Answers

Answer:

The total bill was $84

Step-by-step explanation:

Ok so we know a few things, we know that the total cost of the bill is divisible by both 6 and 4, and we know that if we call the total cost of the bill x and the amount each person would pay if it was divided for 6 people y we can write these equations:

[tex]\frac{x}{6}=y[/tex]

[tex]\frac{x}{4}=y+7[/tex]

Now we can substitute the first equation into the second and solve for x

[tex]\frac{x}{4}=\frac{x}{6}+7\\\frac{x}{4}-\frac{x}{6}=7\\\frac{x}{12}=7\\x=7*12=84[/tex]

Therefore, the total bill was $84

Which number line represents the solution set for the inequality
3(8-4x)<6(x-5)?

Answers

Answer:

B. x > 3

Step-by-step explanation:

Well we first simplify the following inequality,

3(8 - 4x) < 6(x - 5)

Distribute

24 - 12x < 6x - 30

Communicative property

-6x

24 - 18x < -30

-24

-18x < -54

Divide -18x by both sides

Which flips the < to a >.

x > 3

Thus,

the answer is B. x > 3.

Hope this helps :)

Please answer this question now

Answers

Answer:

Step-by-step explanation:

The side y is across from the angle Y which is 68 degrees. Angle Y is next to both the hypotenuse (14 units) and adjacent to the side XY (5 units). If we are finding side y, we need to use one of the trig ratios that relates the angle Y to the side across from it. That would be either the sin of Y which is the side opposite y) over the hypotenuse (14) or the tan of Y which is the side opposite over the side adjacent. Either one will get you the side lengths within a tenth or hundredth of each other. Let's do both, just because. First the sine:

[tex]sin(68)=\frac{y}{14}[/tex] and

14sin(68) = y so

y = 12.98 and rounded to the nearest tenth is 13.0

Now the tangent:

[tex]tan(68)=\frac{y}{5}[/tex] and

5tan(68) = y so

y = 12.37 and rounded to the nearest tenth is 12.4.

As an integer, your answer would be 13; as a decimal it would be the 12.4

Apparently, either is fine.

Find the equation of the line that is parallel to y=-3x+17 and goes through the point(-4,2)

Answers

Answer:

y=-3x-10

Step-by-step explanation:

write the recurring decimal 0,101010101... . as a fraction in its simplest form.​

Answers

Answer:

[tex]\frac{10}{99}[/tex]

Step-by-step explanation:

Answer:

[tex]\frac{10}{99}[/tex]

Step-by-step explanation:

We require to create 2 equations with the repeating decimal after the decimal point.

let x = 0.10101.... → (1)

Multiply both sides by 100

100x = 10.10101.... → (2)

Subtracting (1) from (2) eliminates the repeating decimal, thus

99x = 10 ( divide both sides by 99 )

x = [tex]\frac{10}{99}[/tex]

Find the angle measures given the figure is a rhombus.

Answers

Answer:

1 = 90°, 2 = 66°

Step-by-step explanation:

Since the diagonals of a rhombus are perpendicular, ∠1 = 90°. Using the Exterior Angles Theorem (exterior angle = sum of remote interior angles, we see that ∠2 = 90 - 24 = 66°.

Evaluate 3(4-2) Thanks!! Will give out brainliest

Answers

Answer:

6

Step-by-step explanation:

3(4-2)

PEMDAS says parentheses first

3 ( 2)

Then multiply

6

Answer:

The answer is 6

Step-by-step explanation:

3(4 - 2)

Solve the terms in the bracket first

That's

4 - 2 = 2

So we have

3( 2) = 6

Hope this helps you

4x-5 /6- 2x-1 /6 = 2/3


Answers

Answer:

x = [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

Given

4x - [tex]\frac{5}{6}[/tex] - 2x - [tex]\frac{1}{6}[/tex] = [tex]\frac{2}{3}[/tex]

Multiply through by 6 to clear the fractions

24x - 5 - 12x - 1 = 4

12x - 6 = 4 ( add 6 to both sides )

12x = 10 ( divide both sides by 12 )

x = [tex]\frac{10}{12}[/tex] = [tex]\frac{5}{6}[/tex]

The right answer = 8

PLEASE HELP


For his long distance phone service, David pays a $5 monthly fee plus 9 cents per minute. Last month, David’s long distance bill was $10.58. For how many minutes was David billed?

Answers

Subtract the monthly fee:

10.58 -5 = 5.58

Divide the remaining amount by cost per minute:

5.58/ 0.09 = 62

He was billed for 62 minutes.

A garden has an area of 264ft^2. Its length is 10 ft more than its width. What are the dimensions of the​ garden?

Answers

Answer:

Length = 22 ftWidth = 12 ft

Step-by-step explanation:

Let length of the garden be ' x + 10 '

Let breath of the garden be ' x '

Area of the garden = 264 ft²

Now, let's find the breath of the garden 'x'

[tex]x(x + 10) = 264[/tex]

Distribute X through the parentheses

[tex] {x}^{2} + 10x = 264[/tex]

Move constant to left and change its sign

[tex] {x}^{2} + 10x - 264 = 0[/tex]

Write 10x as a difference

[tex] {x}^{2} + 22x - 12x - 264 = 0[/tex]

Factor out X from the expression

[tex]x(x + 22) - 12x - 264 = 0[/tex]

Factor out -12 from the expression

[tex]x(x + 22) - 12(x + 22) = 0[/tex]

Factor out X +22 from the expression

[tex](x + 22)(x - 12) = 0[/tex]

When the products of factors equals to 0 , at least one factor is 0

[tex]x + 22 = 0[/tex]

[tex]x - 12 = 0[/tex]

Solve for X

[tex]x + 22 = 0[/tex]

[tex]x = 0 - 22[/tex]

[tex]x = - 22[/tex]

Again,

[tex]x - 12 = 0[/tex]

[tex]x = 0 + 12[/tex]

[tex]x = 12[/tex]

(The dimensions can't be negative. )

So, width = 12 ft

Now, let's find the length of the garden ' X + 10 '

[tex]x + 10[/tex]

Plug the value of X

[tex]12 + 10[/tex]

Calculate the sum

[tex] = 22 \: ft[/tex]

Therefore,

Length = 22 ft

Width = 12 ft

Hope this helps..

Best regards!

triangular park ABC has sides 3 m, 5 m, and 6 m. a gardener ravi wants to put a fence all around it and also plant grass inside. how much area does he need to plant?

Answers

Step 1) Check if the given triangle lengths form a right triangle

3^2 + 5^2 = 6^2

9 + 25 = 36

36 = 36

Step 2) Solve for the area of the triangle

Formula: A = 1/2 x base x height

A = 1/2 x 3 x 5

A = 1/2 x 15

A = 7.5 m^2

Step 3) Solve for the perimeter of the triangle

Formula: P = sum of all sides

P = 3 + 5 + 6

P = 14 m

Ravi needs to plant 7.5m^2 of grass and put up a fence that is 14m in total length.

Hope this helps!! :)

Which is the simplified form of x Superscript negative 12?

Answers

Answer:

1/x^12

Step-by-step explanation:

X^-12....simply move x^-12 to the other side of the division and change the sign of the exponent.

The simplified form of the expression x Superscript negative 12 is 1/ x¹².

What is the rule of exponent?

The rule of the exponent is defined as the simplified form of the exponents

(aᵇ)ⁿ = aᵇⁿa⁻ⁿ = 1/aⁿaᵇ * aⁿ = aᵇ⁺ⁿaᵇ / aⁿ = aᵇ⁻ⁿ

where a is the base and b and n are the exponent.

Here given in the question is the expression that x superscript negative 12.

As we now superscript is to write the number in exponent position.

here -12 is written in the superscript of x.

then the mathematical expression will be converted as

x superscript negative 12 = x⁻¹²

As we know from the rule of exponent that a⁻ⁿ = 1/aⁿ where a is the base and n is the exponent.

x⁻¹² can be rewritten as x⁻¹² = 1/ x¹²

Therefore the simplified form of the expression x Superscript negative 12 is 1/ x¹².

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Lines m and p are parallel. If the slope of line m is 1/25 the
slope of line p?


Answers

Answer:

1/25

Step-by-step explanation:

Parallel lines have equal slopes.

So,

Slope of m = Slope of p = 1/25

Answer:

[tex]\boxed{\frac{1}{25}}[/tex]

Step-by-step explanation:

The lines are parallel. Two lines that are parallel have the same slopes.

slope of line [tex]m[/tex] = slope of line [tex]p[/tex]

[tex]slope= \frac{1}{25}[/tex]

(Help now ) please help that will be much appreciated

Answers

Answer:

[tex](2x+3)(2x+3)[/tex]

Step-by-step explanation:

The given expression is

[tex]4x^2+12x+9[/tex]

Here, a=4, b=12, c=9.

Step 1: Multiply [tex]a\cdot c=4\cdot 9=36[/tex]

Step 2: Find the factors of ac that add to b.[tex]6\cdot 6=36[/tex] and [tex]6+6=12=b[/tex] So, two factors of ac are 6 and 6.

Step 3:[tex]4x^2+6x+6x+9[/tex]

Step 4:[tex](4x^2+6x)+(6x+9)[/tex]

Step 5:[tex]2x(2x+3)+3(2x+3)[/tex]

Step 6:[tex](2x+3)(2x+3)[/tex]

Therefore, the required factor form is [tex](2x+3)(2x+3)[/tex]. It can also written as [tex](2x+3)^2[/tex].

Given: x + 2 < -5. Choose the solution set.

Answers

Answer:

x < -7

Step-by-step explanation:

to isolate x we need to subtract 2 from both sides. -5-2 is -7, so the answer is x < -7

Answer:

x< −7

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

                    x+2-(-5)<0

Step by step solution :

STEP 1:

Solve Basic Inequality :

1.1      Subtract  7  from both sides

           x < -7

Inequality Plot :

1.2      Inequality plot for

        x  + 7.000  <  0

i. For any uniform probability distribution, the mean and standard deviation can be computed by knowing the maximum and minimum values of the random variable.
a) true
b) false
ii. In a uniform probability distribution, P(x) is constant between the distribution's minimum and maximum values.
a) true
b) false
iii. The uniform probability distribution's shape is a rectangle
a) true
b) false

Answers

Answer: I. True

II. True

III. True

Step-by-step explanation:

Uniform probability distributions, this are probability distributions which have equally likely outcomes. There are two known types of uniform distributions:

1. discrete

2. continuous.

In the first type of distribution, each outcome is discrete. In a continuous distribution, outcomes are continuous this means they are usually infinite.

Um reservatório possui inicialmente R litros de água, por conta de um vazamento, perde 5 litros a cada minuto. Indique a lei de formação de uma função que expressa a quantidade de água no reservatório em função do tempo

Answers

Answer:

A(t) = R -5(t)

t in minuto

Step-by-step explanation:

Nesta questão, estamos preocupados em estabelecer uma lei que forneça a quantidade de água presente no reservatório a qualquer momento, usando a quantidade inicial de água no reservatório e a taxa de perda de água do reservatório.

Agora, sabemos que a taxa de perda de água é de 5 litros por minuto.

Assim, podemos estabelecer a lei da seguinte forma; vamos chamar a quantidade de água a qualquer momento no reservatório A (t);

A lei é assim; A (t) = R -5t onde t representa o tempo que estamos considerando e é em minutos, enquanto R é o volume inicial de água no tanque.

HELP!! Fiona races BMX around dirt course. If the radius of the course is 70 meters, what is the total distance Fiona covers in two laps of the race?

Answers

Answer:

879.64 (C)

Step-by-step explanation:

Answer:

879.2

Step-by-step explanation:

Each of three jars is filled with blackcurrant, raspberry, or strawberry jam. The labels on each are "raspberry", "strawberry," and "raspberry or strawberry." All three labels are wrong. What kind of jam is in the jar labeled "strawberry?

Answers

Answer:

Raspberry

Step-by-step explanation:

Strawberry label = raspberry

Raspberry label =strawberry

Strawberry and Raspberry label = blackcurrant

Which triangle with side lengths given below is a right triangle? Select Yes or No.
A. 10, 15, 20
B. 10, 24, 25
C. 9, 40, 41
D. 11, 60, 61

Answers

In order to be a right triangle, by the Pythagorean theorem, the length of the longest side c must be equal to the square root of the sum of the squares of the other sides a and b. By this I mean c=sqrt(a^2 + b^2).

The only option that satisfies this condition is C, because 41=sqrt(81+1600).

Answer:

C, or 9,40,41

Step-by-step explanation:

What is the center and radius of the circle? (x-4)^2 + (y-7)^2 =49

Answers

Answer:

The center of circle is: (-7,4) and Radius is 7 units

or (-4,7) and Radius is 7 units

We have to compare the given equation of circle with standard equation of circle

Given equation is:

2nd pic

down below

Standard equation of circle is:

3rd pic

down below

Here

h and k are coordinates of center of circle

So,

comparing

1st pic

down below

Hence,

The center of circle is: (-7,4) and Radius is 7 units

Keywords: Circle, radius

Answer:

The center is ( 4 , 7)The radius is 7

Step-by-step explanation:

First expand the equation

That's

( x - 4)² + ( y - 7)² = 49

x² - 8x + 16 + y² - 14y + 49 - 49 = 0

x² + y² - 8x - 14y + 16 = 0

Comparing with the general equation of a circle

x² + y² + 2gx + 2fy + c = 0

2g = - 8 2f = - 14

g = - 4 f = - 7 c = 16

Center of a circle is ( - g , - f)

( --4 , --7)

Which is ( 4 , 7)

The radius of the circle is given by

r = √g² + f² - c

Where r is the radius

r = √ (-4)² + (-7)² - 16

= √16 + 49 - 16

= √49

= 7

Hope this helps you

Write the following phrase as an expression. "the product of 6 and n" Please helpMEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

6n=

Step-by-step explanation:

I hope this helps you

The expression is 6n.

What is an Expression ?

An expression is a mathematical statement that has variables , constants and mathematical operators.

The phrase 6 and n in expression form is

6n

Therefore, the expression is 6n.

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Find the sum of two consecutive odd numbers is 56 find the numbers

Answers

Answer:

[tex]\boxed{\sf 27 \ and \ 29}[/tex]

Step-by-step explanation:

Let the first consecutive odd integer be [tex]\sf x[/tex].

Let the second consecutive odd integer be [tex]\sf x+2[/tex].

The sum of the two numbers is 56.

[tex]\sf x+x+2=56[/tex]

[tex]\sf 2x+2=56[/tex]

[tex]\sf 2x=54[/tex]

[tex]\sf x=27[/tex]

Put x as 27 for the second consecutive odd integer.

[tex]\sf 27+2=29[/tex]

The two numbers are 27 and 29.

Please answer this question now

Answers

Step-by-step explanation:

follow me....and mark it as brainliest

Answer: x = 26

The tangent segments WX and YX are the same length. This can be proven by forming triangles WVX and YVX, and using the hypotenuse length rule to show the triangles are congruent.

So,

YX = WX

x-8 = 18

x = 18+8

x = 26

if the vertex of a parabola is (-4,6) and another point on the curve is (-3,14), what is the coefficient of the squared expression in the parabola's equation?

Answers

Answer:

8

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, 6 ), thus

y = a(x + 4)² + 6

To find a substitute (- 3, 14) into the equation

14 = a(- 3 + 4)² + 6 ( subtract 6 from both sides )

8 = a

Thus the coefficient of the x² term is a = 8

DONT EXPLAIN just help me with the answer pleaseeee !

Answers

Answer:

A.928.20 is the answers..

It is impossible to learn without an explanation. The coefficient of the exponential term is 910. Hence, the initial, un-compounded amount is 910.

Type the correct answer in each box. Use the graph to complete the given statements. Enter the letters A, B, C, or D in the boxes. (graph below) The function with the lowest output values as x approaches infinity is ____ . The function with the greatest output values as x approaches infinity is ____ .

Answers

Answers:

As x approaches infinity,

The function with the lowest output is graph A

The function with the greatest output is graph B

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

Explanation:

As the graphs head to the right, they go up forever. However, the growth rate (how fast they go upward) varies. The red straight line (line A) goes up the slowest. The growth rate is the same throughout the entire function. The rate is the slope of the line. In contrast, the purple curve B goes up the fastest as it has the steepest increase among the four graphs. The graph steadily gets steeper as you move to the right.

The exponential graph will grow the fastest compared to a linear one or parabolic one. Graphs B and C are exponential, where graph B has a steeper curve compared to graph C.

Answer: The function with the lowest output values as x approaches infinity is Graph A.

The function with the greatest output values as x approaches infinity is Graph B.

Step-by-step explanation: I can’t give you a step-by-step explanation, but this is right!

..................................

Answers

Answer:

A

Step-by-step explanation:

Type in the equation of the graphing calculator and press graph

Classify the following expression by degree and term: x^3y + 5xyz A: 3rd degree trinomial B: 4th degree binomial C: 3rd degree binomial D: 5th degree binomial

Answers

Answer:

4th degree binomial

Step-by-step explanation:

x^3y + 5xyz

Add the exponents on each term

3+1 = 4     1+1+1 =3

The highest power is the degree, so it is a 4th degree

It also has 2 terms so it is a binomial

4th degree binomial

Answer:

B: 4th degree binomial

Step-by-step explanation:

I took the test flvs

Help please!!!!!!!!!!!

Answers

Answer:

B. 2/3

Step-by-step explanation:

To solve this we have to take into account this axioms:

- The total probability is always equal to 1.

- The probability of a randomly selected point being inside the circle is equal to one minus the probability of being outside the circle.

Then, if the probabilities are proportional to the area, we have 1/3 probability of selecting a point inside a circle and (1-1/3)=2/3 probability of selecting a point that is outside the circle.

Then, the probabilty that a random selected point inside the square (the total probability space) and outside the circle is 2/3.

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