Which revolution will generate this hemisphere?
Rotate a semicircle 180° about its diameter.
Rotate a circle 180° about a diameter.
Rotate a trapezoid 180° about one of its bases.
None of the other answers are correct
Rotate a rectangle 180° about one of its sides
Answers
Answer:
Rotate a semicircle 180° about its diameter
Step-by-step explanation:
For common figures, the shape of a figure that revolves about a line which is at the base of the figure to give a 3 dimensional shape is the shape of the cross section of the 3 dimensional figure when the angle of revolution is 180° and half the shape of the cross section of the formed 3 dimensional figure, when the angle of revolution is 360°
The cross section of an hemisphere is a semicircle, therefore, the shape of an hemisphere is formed by rotating a semicircle 180° about the diameter (which is the straight line at the "base") of the semicircle
Therefore;
The correct option that gives the revolution that will generate the hemisphere is;
Rotate a semicircle 180° about its diameter.
Related Questions
Point O is the centre of the circle.
What is the value of x°?
Answers
Explanation: the arc of point H is the same arc of point G, now you double the angle’s value to find the arc and that gives you 108. Half the arc to find the angle, which is 54°. In other words the arcs are equal, so the angles are equal.
Arthur, Kyle, and Tom are all on the baseball team. At the end of the season, they compared how many home runs each of them hit. Arthur noticed that if he doubled the number of home runs he hit and then subtracted 1, he would get the number of home runs Kyle hit. Tom noticed that if he subtracted 1 from the number of home runs he hit and then doubled that number, he would get the number of home runs Kyle hit. Write an expression representing the number of home runs Kyle hit in terms of the number of home runs Arthur hit, a. Enter your response in the first response box. Write an expression representing the number of home runs Kyle hit in terms of the number of home runs Tom hit, t.
Answers
Answer:
k = 2a - 1
k = 2(t - 1)
Step-by-step explanation:
Let :
Number of home runs Arthur hit = a
Number of home runs Kyle hit = k
Number of home runs Tom hit = t
Kyle's home runs, k in terms of Arthur's home run : Double the value of a ; then subtract 1
k = 2a - 1
Kyle's home runs in terms of Tom's home runs ;
Subtract 1 from t `
k = 2(t - 1)
18:40 ratio in simplest terms
Answers
Answer:
9/20
Step-by-step explanation:
Therefore, 18/40 simplified to lowest terms is 9/20.
9/20 is the simplest term of 18:40
Question #9: The box-and-whisker plots below show the mean monthly
temperatures (°F) for Mexico City, Mexico, and Shanghai, China. What
percent of the temperatures for Shanghai fall between 46°F and 78°F?
Answers
Answer: 50%
Step-by-step explanation:
Given: α is an angle in the second quadrant, csc α = 25/7; β is an angle in the first quadrant, cos β = √2/2. The value of tan ( α - β ) = _____.
-3/17
29/17
-31/17
15/17
Answers
Answer:
-31/17
Step-by-step explanation:
csc²α-cot²α=1
cot²α=csc²α-1=(25/7)²-1=(625-49)/49=576/49
α is in 2nd quadrant so cotα is negative.
cot α=-√(576/49)=-24/7
tan α=-7/24
cos β=√2/2
sec β=2/√2=√2
sec²β-tan ²β=1
tan ²β=sec²β-1
tan²β=(√2)²-1=2-1=1
β is in 1st quadrant ,so tan β is positive.
tan β=1
[tex]tan (\alpha -\beta )=\frac{tan \alpha -tan \beta }{1+tan \alpha tan \beta } \\=\frac{\frac{-7}{24} -1}{1+(\frac{-7}{24}) (1)} \\=\frac{-7-24}{24-7} \\=\frac{-31}{17}[/tex]
Please help! I will give Brainliest!
Answers
Answer:
3/10
Step-by-step explanation:
First we count the number of beans in total which is 20
Then we count the number of red beans which is 6
6/20 can be simplified to 3/10
Answer:
C) 3/10
Step-by-step explanation:
There are 6 red + 5 blue + 4 green + 5 black = 20 jelly beans in total
Since there are 6 red jelly beans, the probability of randomly selecting a red jelly bean is 6 red jelly beans / 20 total jelly beans = 6/20 = 3/10
What is 4.33 rounded to the nearest whole number?
Answers
Answer:
the answer is 4 because i rounded down. since its 3
Step-by-step explanation:
What is the cost of a medium drink? What is the cost of a large popcorn?
Answers
Answer:
a) the cost of one medium drink be $3.80
b) the cost of a large popcorn be $6.25
Step-by-step explanation:
Let the cost of one medium drink be $x and the cost of a large popcorn be $y
According to question, A couple bought 2 medium drinks and a large popcorn for $13.85.
2x + y = 13.85 ..............(1)
A family bought 3 medium drinks and 2 large popcorn for a total of $23.90
3x + 2y = 23.90 ..............(2)
Using Elimination method to solve the system of equation. Multiply equation (1) by 2 , we get,
4x + 2y = 27.70 ..............(3)
Now, subtract equation (2) from (3), we get,
4x + 2y-(3x + 2y) = 27.70 - 23.90
4x + 2y-3x - 2y = 3.80
4x -3x = 3.80
x = 3.80
Substitute, x = 3.8 in (1) ,
2(3.80) + y = 13.85
7.60 +y = 13.85
y = 6.25
Therefore, the cost of one medium drink be $3.80
and the cost of a large popcorn be $6.25
simplify the expression (1.25 x 107) (4 x 104).
HELPP
Answers
Answer:
55640
Step-by-step explanation:
Answer:
55640
Step-by-step explanation:
Given m/n
find the value of x.
106°
470
Answers
Answer:
x = 106
Step-by-step explanation:
The angle with a measure of 106 degrees and the angle labeled "x" are opposite exterior angles
Opposite exterior angles are congruent
Hence, x = 106
$32 is 8% of what amount?
Answers
Answer:
$32 is 8% of 400
Step-by-step explanation:
Have a good day :)
Answer:
100/8 = 12.5
32*12.5 = $400
PLS HELPPP WILL GIB BRAINLESt NEed ANSWERS FOR ALL ASAP!!!!!!!!
Answers
Answer:
https://brainly.com/question/23528231
Step-by-step explanation:
does anyone know how to find the area of a triangle on a graph ? THIS CAN BOOST MY GRADE BY THREE LETTERS!
Answers
Answer:
1/2bh
Step-by-step explanation:
graph has base and height
also triangle have base and height
12. A right trapezoid is shown below. The measurements shown are in centimeters. Find the area of the
trapezoid to the nearest square centimeter. Show your work.
•16
•11
•^89
Can someone help me with this one? I know it doesn’t have a picture, but that’s because it wouldn’t let me show the whole problem!
Answers
the formula to find the area of a trapezoid is b1+b2/2xh
so plug in your numbers
16+11/2x89
therefore your answer is 1201.5 ft^2
I will give brainly if right
Find the value of x that will make A||B.
A+
2x + 5
3x - 2
В.
x = [?]
Answers
Answer:
Alternate interior angles are congruent, so 2x+5 = 3x -2. X=7
Step-by-step explanation:
You are buying carpet to cover a room that measures 41 ft by 42 ft. The carpet cost $ 25 per square yard. How much will the carpet cost?
Answers
Answer:
$4783.33
Step-by-step explanation:
lets convert the dimensions from ft to yards
41 ft = 13 2/3 yards
42 ft = = 14 yards
Lets multiply:
(first I am going to convert 13 2/3 to an improper fraction : 41/3)
41/3 x 14/1 = 574/3 = 191 1/3 sq yards
Lets multiply that by 25 because it is $25 / sq yrd
4775 + 8 1/3 = = $4783 1/3 = $4783.33
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
PLEASE HELP DUE TODAY PLPLZPLZ
Answer the questions:
If Angle 2 is 60. Find angle 8
options:
140
100
40
60
If Angle 4 is 40 degrees. Find Angle 1.
Options
140
100
40
60
Answers
Answer:
60,140
Step-by-step explanation:
alternate interior angles are congruent. and then 1 and 4 are supplementary angles which create 180
Answer:
Angle 2 is 60. Find angle 8
solution,
2=8(being co-alternate angle)
60=8
so, 8=60,,
If Angle 4 is 40 degrees. Find Angle 1
solution,
again,
let 1 be x
4+x=180
40°+x=180
x=180-40
x=140,,
therefore x=140,,
If a=-2, then (3a)^2=
Answers
Answer:
I think it's 12.
Step-by-step explanation:
3(-2)^2 in a calculator give you 12
=12
the answer is 12
Please!!!!!! Help!!!! And both are different
Answers
Answer:
if ur du ur us du
Step-by-step explanation:
ur ydxurxru
OR 840 square millimeters
OR 840 millimeters squared
All of the units of measurement are the same. Since i dont know whats in the dropdown menu, just choose one of those answers I gave that matches with the choices on your dropdown menu
MARK ME BRAINLIEST TYSM!
Com.ment me if u have any questions
please answer correctly !!!!! Will mark brainliest !!!!!!!!!!!!!!
Answers
Answer:
66.4
Step-by-step explanation:
Answer:
45 degrees
Step-by-step explanation:
Sin(x)= 62/88
Sin-¹(62/88)= 44.8 = 45. (The inverse function of sine)
Which of the following is an inscribed angle in the diagram below?
Answers
Answer:
A
Step-by-step explanation:
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions (what is the rate of change?)
Answers
Answer:
The rate of change is to mathematically describe the percentage change in value over a period of time
There are 28 tables in the cafeteria. Each table has 12 students sitting at it. How many total students are there?
Answers
Answer:
336
Step-by-step explanation:
you just have to do 28*12.
The answer is 336. :D
Answer:
322 students
Step-by-step explanation:
Mulitiply 28 x 12
HELPPPPPOOPPPLLLL pleaseee begging
Answers
Answers:
surface area : (41.2x2) + (4x9x6) = 298.4 cm 2
volume: 41.2 x 9 = 370.8 cm 3
Step-by-step explanation:
I Need help ASAP it is due today 5/26/21
Answers
Answer:
Step-by-step explanation:
[tex]9*8=72\\0.5*6*8=24\\10*9=90\\72+24+90=186 m^{2}[/tex]
The domain (input values) of the sine function is:
O A. values between 0 and a radians,
O B. all real numbers.
O C. values less than 90%.
D. values less than 27 radians,
Answers
Answer:
The domain (input values) of the sine function is:
O B. all real numbers
The domain of the sine function will be all real number. Then the correct option is B.
What are domain and range?The domain means all the possible values of x and the range means all the possible values of y.
Simply put, trigonometric functions also referred to as cyclic capabilities the functions of a triangle's inclination.
Let the sine function be f(x) = sin x.
It is a function that repeats itself in a particular time interval.
The domain of the sine function will be all real number.
And the range of the sine function will be [1, –1].
Then the correct option is B.
The graph of the sine function is given below.
More about the domain and range link is given below.
https://brainly.com/question/12208715
#SPJ5
Given triangle DEF with sides d, e, and f
opposite angles D, E, and F. respectively,
determine which angle has the smallest measure
if side d=14, e = 12, and = 10
Please help I don’t
understand how to do this!!
Answers
Answer:
F
Step-by-step explanation:
The smallest angle will be opposite the smallest side
F
The smallest angle is ∠DFE.
What is a Triangle?A polygon which has three sides and three vertices is called as triangle.
The sum of all the angles of the triangle is 180°.
Given:
Triangle DEF with sides d, e, and f opposite angles D, E, and F respectively.
And the side:
d=14, e = 12, and f = 10
To find the smallest angle:
The smallest angle is opposite to the smallest side.
And the smallest side is f = 10.
Let the angle opposite to f is ∠DFE.
Therefore, the smallest angle is ∠DFE.
To learn more about the triangle;
https://brainly.com/question/2773823
#SPJ2
HELLPPP ASAP FIRST CORRECT ANSWER WILL RECEIVE BRAINLIEST
If 3/7 is written as a decimal, will the digits after the decimal eventually repeat?
A.Yes, because
is an irrational number.
B. Yes, because
is a rational number.
C. No, because
is an irrational number
D. No, because
is a rational number
Answers
Answer:
Yes, because its an rational number
Step-by-step explanation:
Solution: by division.
3/7 = 0.42857142857142857142…..
As you can see, the first six decimal places make a loop and become repetitive.
Then I proceeded to divide 100/6. That equals 16 remaning 4. Then counted four digits from0.428571. The 100th digit equals 5.
PLEASE HELP ME DUE IN 5 MINS! Evaluate the expression for =10
(−10)(+2)
Answers
Answer:
12
Step-by-step explanation:
(10-10)(10+2)
=12
do whats inside the brackets then multiply (BEDMAS)
hope this helps
Algebra II:
The 4th term of a geometric sequence is 48, and the common ratio is 2. What is the first term of the sequence?
*There are no answer choices available on Kydor*
Thank you so much for your help!
Answers
Answer:
6
Step-by-step explanation:
[tex]nth \: term \: of \: geometric \: \\ sequence \: is \: given \: as : \\ a_n = a {r}^{n - 1} \\ (a = ?, \: \: r = 2)\\ \\ a_4 =48......(given) \\ \\ \therefore \: a {(2)}^{4 - 1} = 48 \\ \\ \therefore \: a {(2)}^{3} = 48\\ \\ \therefore \: 8a = 48 \\ \\ \therefore \: a = \frac{48}{8} \\ \\ \therefore \:a = 6[/tex]
Answer:
6
Step-by-step explanation:
geometric sequence is given as Tn=ar^n-1
where Tn is the last term,a is the first term, r is the common ratio, n is the nth term
hence 48=a2^(4-1)
48=a2^3
48=a8 (divide both by 8 to ramain with a)
6=a
therefore the first term is 6 .