Answers
Answer:
(175/9)π m²
Step-by-step explanation:
Area of the shaded sector = θ/360 × πr²
Where,
θ = 180° - 110° = 70°
r = ½(20) = 10 m
Substitute
Area = 70/360 × π × 10²
Area = 7/36 × π × 100
Area = (7×100)/36π
Area = (700/36)π = (350/18)π = (175/9)π m²
Related Questions
The measure of arc AB is °.
The measure of angle AOB is °.
The measure of angle BDA is °.
Answers
Answer:
50,50,25
Step-by-step explanation:
Answer:
50,50.25
Step-by-step explanation:
State the null hypothesis H0 and the alternative hypothesis Ha in each case. Be sure to identify the parameters that you use to state the hypotheses.
(a) A university gives credit in first-year calculus to students who pass a placement test. The mathematics department wants to know if students who get credit in this way differ in their success with second-year calculus. Scores in second-year calculus are scaled so the average each year is equivalent to a 75. This year 17students who took second-year calculus passed the placement test.
H0:μ>75;Ha:μ=75
H0:μ<75;Ha:μ=75
H0:μ=17;Ha:μ>17
H0:μ=17;Ha:μ≠17
(b) Experiments on learning in animals sometimes measure how long it takes a mouse to find its way through a maze. The mean time is 24 seconds for one particular maze. A researcher thinks that playing rap music will cause the mice to complete the maze slower. She measures how long each of 17 mice takes with the rap music as a stimulus.
H0:μ=24sec;Ha:μ>24sec
H0:μ=24sec;Ha:μ≠24sec
H0:μ>17sec;Ha:μ=17sec
H0:μ=17sec;Ha:μ<17sec
H0:μ=24sec;Ha:μ<24sec
(c) The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet. A student group thinks that the apartments are smaller than advertised. They hire an engineer to measure a sample of apartments to test their suspicion.
H0:μ=850ft2;Ha:μμ850ft2
H0:μ>850ft2;Ha:μ=850ft2
H0:μ=850ft2;Ha:μ>850ft2
H0:μ=850ft2;Ha:μ<850ft2
H0:μ<850ft2;Ha:μ=850ft2
Answers
Answer: (A)
[tex]H_0:\mu=75\\H_a:\mu\neq75[/tex]
(B)
[tex]H_0:\mu=24\ sec\\H_a:\mu>24\ sec[/tex]
(C)
[tex]H_0:\mu=850\ ft^2\\H_a:\mu<850 \ ft^2[/tex]
Step-by-step explanation:
Null hypothesis [tex](H_0)[/tex]: It is a statement showing population parameters as per the objective of the study. It generally takes "≤,≥,=" signs. Alternative hypothesis [tex](H_a)[/tex]: It is also a statement describing population parameters as per the objective of the study. It generally takes ">, <, ≠" signs.(A) Objective: Scores in second-year calculus are scaled so the average each year is equivalent to a 75 or not.
[tex]H_0:\mu=75\\H_a:\mu\neq75[/tex]
(B) Objective: The mean time is 24 seconds or more for one particular maze.
[tex]H_0:\mu=24\ sec\\H_a:\mu>24\ sec[/tex]
(C) Objective: The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet or smaller.
[tex]H_0:\mu=850\ ft^2\\H_a:\mu<850 \ ft^2[/tex]
This morning, Manny took a history test. There were 50 multiple-choice problems on the test
and Manny answered 10% of them correctly. How many problems did Manny get right?
Answers
Answer:
He got 5 right
Step-by-step explanation:
10% = 0.1
50(0.1) = 5
Answer:
5 questions were answered correctly
Step-by-step explanation:
10% of 50 is 5. So that means 5 questions were answered correctly.
Figure A ~ Figure B
Figure A
R = 4 ft
Figure B
R = 2 ft
V = 352 cu ft
Find the volume of Figure B.
Help please!!
Answers
The volume of figure B that is similar to figure A is: 44 cu. ft.
How to Find the Volume of Similar Figures?If the volumes of two figures are A and B respectively, and their radius is a and b respectively, then, Volume of A/volume of B = a³/b³.
Given that figures A and B are similar, we would have the following ratio:
352/volume of B = 4³/2³
352/volume of B = 64/8
352/volume of B = 8
Volume of B = 352/8
Volume of B = 44 cu. ft.
Learn more about the volume of similar figures on:
https://brainly.com/question/4315286
#SPJ1
ZA and ZB are vertical angles. If mZA = (3.C – 9)° and m B = (x+3)°, then find the value of x.
Answers
Answer:
x = 6
Step-by-step explanation:
Vertical angles in a geometry are equal. Hence m<A = m<B
Given that
m<A = 3x - 9
m<B - x+3
Then 3x - 9 = x+3
3x - x = 3 + 9
2x = 12
Divide both sides by 2
2x/12 = 12/2
x = 6
Hence the value of x is 6
7 2/3 + 8 1/2 + 4 1/6 =
Answers
Answer:
20 1/3 or 61/3
Here you go, have a nice day!!
Hope ya have a wonderful day ^v^
Can I get help with what y equals?
Answers
What is 814 divided by 22?
Answers
Answer:
37
Step-by-step explanation:
if you put it in a calculator thats the answer
Solve the system 8y-5z=23 3y-2z=6
100 POINTS
Answers
Answer:
z = 21 ; y= 16
Step-by-step explanation:
first of all we have to isolate a variable.
In second expression we can obtain:
3y = 2z+6
y = 2/3 z + 2
now we have to substitute this value in the first equation and solve it
8(2/3z+2)-5z = 23
16/3z + 16 -5z = 23
16z +48 - 15z = 69
z = 21
now we have to substitute z in the second equation:
y = 2/3 (21) +2
y = 14+ 2 = 16
y = 16
Gas at station M costs $1.58 per gallon. Gas at station costs $1.63 per gallon. How much money will Jordan save the buys 15 gallions of
gas at station M rather than at station ?
A $0.05
B$0.75
OC. $23.70
D. $24.45
Answers
Answer:
B.$0.75
Step-by-step explanation:
I think that's the answer hope it helps you.
Can anyone upload the the solutions of
CLASS 7 LESSON NO - 1 INTEGERS EX 1.2 ALL QUESTION - NCERT
Answers
Answer:
https://www.learncbse.in/ncert-solutions-for-class-7-maths-integers-exercise-1-2/
i think thats the one
Plot the following data points.
1
4
,
3
4
, 1
1
2
, 2 , 2
1
2
, 2
1
2
, 3
1
2
Answers
Answer:
Step-by-step explan4ation:
The data points are plotted on the graph below.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
We will assume the data points as,
Sales of a particular product over time.
Year Sales
2015 50
2016 100
2017 150
2118 200
2019 250
2020 300
Now,
We can make ordered pairs as,
(2015, 50), (2016, 100), (2017, 150), (2018, 200), (2019, 250), (2020, 300).
The graph of the data point are given below.
Thus,
The data points are plotted on the graph below.
Learn more about coordinates here:
https://brainly.com/question/13118993
#SPJ2
The complete question.
Sales of a particular product over time.
Year Sales
2015 50
2016 100
2017 150
2118 200
2019 250
2020 300
Plot the following data points.
Please help i need to get these right or i fail WILL GIVE BRAINLEST!!!
Answers
Answer:
Give brainly to other guy
Step-by-step explanation:he deserves it
The circle graph shows Lenora's activities
during 10 hours at school.
School Activities
Homeroom 7.5%
Newspaper
7.5%
Gym
10.0%
Academic
Classes
50.0%
Lunch 5.0%
Softball
Practice
20.0%
How many more hours does she spend at
softball practice than in homeroom?
Answers
Answer:
60.0 I think
Answer:
1.25 hours or 1 hour and 15 minutesStep-by-step explanation:
The difference in time % softball practice than in homeroom:
20% - 7.5% = 12.5%Convert the difference into hours:
12.5*10/100 = 1.25 hours or 1 hour and 15 minutesHelp me with this problem please
Answers
Answer:
[tex](a)\ A_1 = s^2[/tex]
[tex](b)\ A_2 = 4s^2[/tex]
(c) 4 small squares
Step-by-step explanation:
Given
Small Square:
[tex]Dimension: s[/tex]
Large Square:
[tex]Dimension: 2s[/tex] i.e. twice as long as the small square
Solving (a): The area of the small square.
This is calculated as
[tex]Area = Length^2[/tex]
So, we have:
[tex]A_1 = s^2[/tex]
Solving (b): The area of the large square.
This is calculated as
[tex]Area = Length^2[/tex]
So, we have:
[tex]A_2 = (2s)^2[/tex]
[tex]A_2 = 4s^2[/tex]
Solving (c): Number of small square to cover the large square
To do this, we simply divide their areas.
Let n represents the required number; n is calculated as:
[tex]n = \frac{A_2}{A_1}[/tex]
[tex]n = \frac{4s^2}{s^2}[/tex]
[tex]n = 4[/tex]
Hence, 4 small squares is required to cover the large square
<4 and 45 are alternate interior
angles. Find the measure of 4
Answers
Answer:
115%
Step-by-step explanation:
5 is completely irrelevant, Vertical angles are congruent.
Please help before 7 min
Answers
Answer:
The Value of x = 23.1 unit
Step-by-step explanation:
Given:
Parallel line intersect
Find:
The value of "X"
Computation:
We know that given lines are parallels
So, by using Ratio theorem we can find the value of "x"
Ratio theorem of parallel lines say
AB / BC = AD / DE
So,
14 / 20 = x / 33
x = [14 x 33] / 20
The Value of x = 23.1 unit
24 fl.ounces = how many cups?
Answers
Answer:
3 cups
Step-by-step explanation:
Answer:
Its 3
Step-by-step explanation:
you divide the volume value by 8
24 = 3
9. Which of the following fractions is equivalent to 1.68?*
25
17
25
42
A
OB.
42
7
25
4.
Answers
Please help 30 points and brainless
Answers
Answer:
Stats. for a basketball game and the graph could be a bar graph or could be a line graph. And yes the data would look good on a graph.
Step-by-step explanation:
I'm familiar with these types of problems.
What is the volume of the fish tank if the base is 4 feet, the width is 2 feet, and
the height is 3 feet? Be sure to label your units.
Answers
Answer:
24 ft³
Step-by-step explanation:
The volume formula for a rectangular prism is ...
V = LWH
V = (4 ft)(2 ft)(3 ft) = 24 ft³
The volume of the fish tank is 24 cubic feet.
One hundred sixty people who suffer from painful diabetic neuropathy have volunteered to participate in a study. Eighty are selected at random and are given the drug gabapentin, which, although originally intended to prevent epileptic seizures, has properties that may make it useful to alleviate neuropathy. The remaining participants are given a placebo. A neurologist evaluates the symptoms of all volunteers after two months to determine if there has been substantial improvement in the severity of the symptoms.
Does the use of volunteers make this study invalid?
a. yes, because of volunteer bias no, because blocking was used.
b. yes, because there is no way to determine the effect of gabapentin on people that do not have symptoms of neuropathy.
c. no, because the subjects are randomly assigned to treatment groups.
Answers
Answer:
C. No, because the subjects are randomly assigned to treatment groups
Step-by-step explanation:
We are told that 80 people are selected at random and are given the drug gabapentin.
Also that the remaining people are given the placebo.
This means that they are randomly assigned treatment groups and so it is a completely randomized block design and as such the use of volunteers doesn't make it invalid.
If you know this you’re very smart!
Answers
Answer:
Its B and its not that hard because im doing that rn lol but do you need me to explain?
Step-by-step explanation:
Emily bought 4 cheeseburgers for $6 each and then spent $18 on a new shirt. She paid for the cheeseburgers and shirt with her debit card. The change to Emily's bank account can be found using the expression below:
4(-6) + (-18)
Which of the integers below shows the change in balance to Emily's bank account?
28
-42
-64
6
Answers
Need some help with this one
Answers
Answer:
17.5 ft
Step-by-step explanation:
Given
[tex]Ladder = 18ft[/tex]
[tex]\theta = 76[/tex]
Required
The height which the ladder reaches on the wall
The question is illustrated with the attached image (solve for x).
Using sine formula, we have:
[tex]\sin(76) = \frac{x}{18}[/tex] --- i.e. sin = opposite/hypotenuse
Make x the subject
[tex]x = 18 * \sin(76)[/tex]
[tex]x = 18 * 0.9703[/tex]
[tex]x = 17.4654[/tex]
Approximate
[tex]x = 17.5[/tex]
What type of polynomial is 14x2 + 3x – 15?
Answers
Answer:
Step-by-step explanation:
There are three terms. So, 14x² + 3x -15 is a trinomial
Find the measurement indicated in each parallelogram.
1)
с
40°
D
E
Answers
Answer:
D=40
C=140
E=140
Step-by-step explanation:
opposite angles are congruent in parallelograms, so D is equal to 40. Also, the interior angles of any quadrilateral always equal 360, and because there are only 2 angles left that we don't know what they equal, if we add 40 to 40, which equals 80, and then subtract 80 from 360, we get 280, which we then divide by 2, to get 140 for C and E.
A child has toy blocks that contain the numbers 1 through 80. What is the probability that the will pick up a number that is
not a multiple of 11?
• Give your answer in fraction form. Reduce the fraction if necessary.
Answers
Answer:
73/80
Step-by-step explanation:
multiples of 11 between 1 and 80 are 11,22,33,44,55,66,77
number of terms=7
P(multiple of 11)=7/80
P(not a multiple of 11)=1-7/80=73/80
Yuki bought a drop–leaf kitchen table. The rectangular part of the table is a 1–by–5–foot rectangle with a semicircle at each end, as shown.
Answers
Answer:
iodfk
Step-by-step explanation:
y=((3x+1)³)-², find dy/dx