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serious [3.7K]
3 years ago
7

The area of the sector of a circle of radius r/2 and central angle 2θ is __________

Mathematics
1 answer:
olasank [31]3 years ago
6 0
S= 20/360 . Pi*(r square )
=0.055 * 3.14 * 4
= 0.7
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What is the domain of the graph function
andrey2020 [161]

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D

Step-by-step explanation:

it -4<x<8 your answer is d

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4 years ago
Please answer the question stated below:
iogann1982 [59]
Y+57=267
Y=267-57
Y=210
7 0
3 years ago
Transformations can be thought of as functions that take the points from one object (the pre-image) to the corresponding points
sweet-ann [11.9K]

1. Translation of a units to the right and b units up has rule:

(x,y)→(x+a,y+b).

Then the function is

T(x,y)=(x+a,y+b).

2. Reflection across the y-axis acts in following way:

(x,y)→(-x,y).

Then the function is

R_y(x,y)=(-x,y).

3. Reflection across the x-axis acts in following way:

(x,y)→(x,-y).

Then the function is

R_x(x,y)=(x,-y).

4. Rotation of 90 degrees counterclockwise about the origin, point O acts bu the rule:

(x,y)→(-y,x).

Then the function is

R_{O,90^{\circ}}(x,y)=(-y,x).

5. Rotation of 180 degrees counterclockwise about the origin, point O acts bu the rule:

(x,y)→(-x,-y).

Then the function is

R_{O,180^{\circ}}(x,y)=(-x,-y).

6. Rotation of 270 degrees counterclockwise about the origin, point O acts bu the rule:

(x,y)→(y,-x).

Then the function is

R_{O,270^{\circ}}(x,y)=(y,-x).

4 0
3 years ago
A school allots £3000 to spend on a trip to the theatre. Theatre tickets have a regular cost of £40 each and are on offer for 1
Bumek [7]

Answer:

£36

Step-by-step explanation:

From the question, we are told that School allots £3000 to spend on a trip to the theatre. With regular cost of tickets of £40 each with offer for 1/5 off

Then the cost of each ticket with 1/5 off= (4/5×40)= £32

From the question, A train ticket for the day will cost £20 each.

Then total cost for each of it = £32+£20

=£52

To determine how much money that the school will have left over, If 3 teachers and the maximum number of students attend, can be expressed below by first calculating the number of students.

Let us denote the number of students as "x"

52(x+3)= < 3000

52x + 156 =< 3000

52x =< 3000 - 156

52x =< 2844

X =< 2844/52

s =< 54.69,

The max. Number of students is 54

Total number of people= Number of students + the 3 teachers

= 54+3= 57

Total cost for 57 people= (£52 × 57 people)= £2964

The amount of money the school will have as left over = (£3000 - £2964)

= £36

8 0
3 years ago
circle 0 shown below has a radius of 27 inches.find to the nearest tenth of a degree the measure of the angle ,x, that forms are
Irina18 [472]

Answer: 29.7 degrees

Step-by-step explanation:

Good, I can see the diagram now!

First calculate circumference of the circle.

C=2πr

C=2π(27)

C=54π in ==> 360 degrees

54π/14=12.11757

360/12.11757=

29.709=29.7 degrees

8 0
2 years ago
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