Explain what πr² and h represent in terms of the cylinder. Then explain how this information is used to find the formula for the volume of a half sphere, 2/3 • πr²• r. Then explain how you use this formula to get the formula 4/3 πr³ for the volume of a sphere.
Answer:
The formula that is used to determine the volume of the cylinder in terms of pi is V = πr2h cubic units where, "V", "r" and "h" are the volume, radius, and height of the cylinder. This formula of volume of the cylinder also shows its dependence on the radius and height of the cylinder.
Step-by-step explanation:
Pls help me thank you
Answer:
140.4ft^2
Step-by-step explanation:
since all four sides are equilateral triangles, you only need to find one triangle and multiply by 4.
area of triangle = 0.5×base×height = 0.5×7.8ft×9ft =35.1ft^2
surface area of pyramid= 35.2ft^2 × 4 = 140.4ft^2
Julie plotted some points on a graph. Point D is 8 units away from the origin. Select each pair of possible coordinates of Point D. show work
A. (8, 8)
B. (0, 8)
C. (1, 8)
E. (8, 0)
D. (8, 1)
Need help its for 20 points whoever complete this for me I will give you a crown Options Mean median 2inches 2.5inches 3inches 3.2inches
Answer:
Median, 2.5
Step-by-step explanation:
Center means middle and when you're trying to find the median you're searching for the middle value
The answer is:
The Median is 2.5
Answer:
The median is 2.5 inches
Step-by-step explanation:
take all of the data points and put them in order. then take out the largest and smallest numbers until you get 2 and 3. halfway point between 2 and 3 is 2.5
1. Design your own real-world scenario in which the solution requires the Pythagorean Theorem. Use complete sentences to describe the scenario.
2. Model your real-world scenario with an equation and a sketch.
3. In two or more complete sentences, explain the steps necessary to solve for the missing value in your real-world scenario. Include the solution in your explanation.
Answer:
this is not maths
is the answer
if you like my answer please like comment and mark me as brilliant
BRAINLIEST AND A LOTTT OF POINTS, PLEASE HELP
Answer:
Wil low
Tun nel
Bri lli ant
Di ffi cult
Exa gge rate
Fit ter
Plan ner
Step-by-step explanation:
I gave you seven just in case.
Please help me..........
Answer:
Line KM is not shown in the drawing.
NEED HELP!!
julia and kelsey are both babysitters. julia charges a flat fee of $30 plus $5 per hour. and kelsey charges a flat fee of $10 plus $15 per hour. which system of equations represents the information given? let z represent the number of hours spent babysitting. let y represent the money earned. (answer choices are in the picture)
Answer:
I think it's the 2nd choice. Hopefully I got this correct :)
Step-by-step explanation:
I think you wrote that z will represent the number of hours spent babysitting but I think you meant x.
It's the 2nd choice because $30 is the flat rate for Julia and $10 is the flat rate for Kelsey. Julia has a rate of $5 per hour so that will be the number with the x. And Kelsey has a rate of $15 per hour so that will be the number with the x.
Julia: y = 5x + 30
Kelsey: y = 15x + 10.
Answer fast and correctly for brainliest!!!
Answer:
C
Step-by-step explanation:
A and C
Answer:
Triangles A and C
Step-by-step explanation:
Triangle C is the same as A because C is dialated +3. They both also have the same angles.
answer to number 4 pls :)
Jeanette surveyed 2 newly hired police officers at the police station.
Is this sample of the police officers at the police station likely to be representative?
Answer as Yes or No
Answer:
No
Step-by-step explanation:
I answered one of your other questions can u give me brainliest on it
-lukelaws
Hope I helped
Help me with this answer you have to answer 2 questions but you get
80 points if answered right
Answer:
1. Sample answer
2. Sample answer
They are already answered
Step-by-step explanation:
show work to the question
Answer:
Step-by-step explanation:
C=2πr use this to calculate both circumfrences then difference between
Describe the relationships among the volumes of the solids. Which solid has the greatest volume? Which solid has the second greatest volume? Do any of the solids have the same volumes? Explain your reasoning. (Represent volumes in terms of π.)
Answer:
1 c 2 b 3 a thats the order from greatest volume to smallest volume is quantity or power of sound; degree of loudness. we can have a volume of a shape by multiplying length and width and depth
Step-by-step explanation:
Write an equation of the line that passes through each pair of points.
[tex](5, 7), (-8, -4)[/tex]
Answer:
[tex]y = \frac{11}{13} x + 2 \frac{10}{13} [/tex]
Step-by-step explanation:
y= mx +c, where m is the slope and c is the y-intercept.
We need to find the value of m and c, which can be done by using the slope formula and by substituting a pair of coordinates respectively. Find m first before finding the value of c.
[tex]\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }[/tex]
[tex]slope = \frac{7 - ( - 4)}{5 - ( - 8)} [/tex]
[tex]slope = \frac{7 + 4}{5 + 8} [/tex]
[tex]slope = \frac{11}{13} [/tex]
Substitute the value of m into the equation:
[tex]y = \frac{11}{13} x + c[/tex]
Substitute a pair of coordinates:
When x= 5, y= 7,
[tex]7 = \frac{11}{13} (5) + c[/tex]
[tex]c = 7 - \frac{55}{13} [/tex]
[tex]c = \frac{91}{13} - \frac{55}{13} [/tex]
[tex]c = \frac{36}{13} [/tex]
[tex]c = 2 \frac{10}{13} [/tex]
Thus, the equation of the line is [tex]y = \frac{11}{13} x + 2 \frac{10}{13} [/tex].
Distributive property with variables (negative numbers)
5 stars to correct answers
Have a wonderful day!
C is your answer.
Thank you and have a splendid day as well!
Distrubtive property with variables KA 5 stars if answer is correct
Answer:
-8m + 24 - 32n
Step-by-step explanation:
-8 · m = -8m
-8 · -3 = 24
-8 · 4n = -32
What is the perimeter and area of the photo below? And please show me how you did it. I need it for a school math group, and I’m struggling. So please show work.
Answer:
Assuming the area is made up of a square and a semicircle.
Perimeter
The side length of the square = 18 ft
We can see 3 full side lengths plus one side length from which we need to subtract 12 ft (see attached diagram).
⇒ perimeter of the square = (3 x 18) + (18 - 12)
= 54 + 6
= 60 ft
Circumference of a circle = [tex]\pi[/tex]d (where d is the diameter)
⇒ arc length of the semicircle = 1/2 circumference
= 1/2 · [tex]\pi[/tex] · 12
= 6[tex]\pi[/tex] ft
Total perimeter = 60 + 6[tex]\pi[/tex] = 78.8 ft (nearest tenth)
Area
Area of a square = s² (where s is the side length)
⇒ area of square = 18²
= 324 ft²
Diameter = 2r ⇒ r = 1/2 diameter
Area of a circle = [tex]\pi[/tex]r² (where r is the radius)
⇒ area of the semicircle = 1/2 · [tex]\pi[/tex] · 6²
= 18[tex]\pi[/tex] ft²
Total area = 324 + 18[tex]\pi[/tex] = 380.5 ft² (nearest tenth)
50 POINTS GIVING BRAINLIEST!
Answer:
Airspeed:180 go
160 No Go
210 Go
130 No Go
vs=20mph
Step-by-step explanation:
class
Answer:
Airspeed:180 go
160 No Go
210 Go
130 No Go
vs=20mph
Step-by-step explanation:
True or False: Both equations have 'no solutions'.
Answer:
I think the answer is FALSE
Step-by-step explanation:
BECAUSE IT HAS A SOLUTION LOOK IN THE PICTURE
I have done it as rough
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
Whoever gets it right can have brainliest, but answer ASAP!
little help pls? its for a friend
Answer:
the answer to a is -27 the answer to d is 28 the answer to gis 15
Which statement below is true of the two figures?
Answer:
B
Step-by-step explanation:
If you are not altering the triangle in any way and just moving it (translating), they should be the same size and shape. Thus, both triangles are similar (the same shape) and congruent (equal to each other)
Can yall please help
Answer:
UT
Step-by-step explanation:
A line segment has a two endpoint connect by a line.
UT isn't connected by a line
Answer:
Line segment UT is not shown in the drawing.
50 POINTS GIVING BRAINLIEST
Answer:
x = 37°
x = 40°
x = 260°
Step-by-step explanation:
To find angle x when two secants or tangents intersect outside the circle, simply subtract the smaller arc from the bigger arc and half the result.
Question 1
[tex]x=\dfrac12(128^{\circ}-54^{\circ})=37^{\circ}[/tex]
Question 2
To find the bigger arc, subtract the smaller arc from 360°
⇒ 360° - 140° = 220°
[tex]x=\dfrac12(220^{\circ}-140^{\circ})=40^{\circ}[/tex]
Question 3
The smaller arc can also be found by subtracting the external angle from 180°
Smaller arc = 180° - 80° = 100°
[tex]80^{\circ}=\dfrac12(x-100^{\circ})[/tex]
[tex]160^{\circ}=x-100^{\circ}[/tex]
[tex]x=260^{\circ}[/tex]
#1
2x=128-542x=74x=37°#2
Bigger Arc=360-140=220°
2x=(220-140)2x=80x=40°#3
Smaller arc=180-80=100°
2(80)=x-100160=x-100x=260°The water glasses below are filled to the same height and have the same radius. How many times could you fill Glass B to equal the amount water in Glass A? Explain your reasoning.
Answer:
B
Step-by-step explanation:
%9 and 6 cm the glass ÷14
πcm }=. cm 9
thanks me later
The amount of water in Glass B to equal to 3 times of the amount water in Glass A
What is the volume?The volume is a measurement of three-dimensional space that is utilized.
Let r be the radius and h be the height of the cylinder and cone. Then the volume of the cylinder will be given as,
Volume of A = π r²h cubic units ...1
And the volume of the cone will be given as,
Volume of B = (1/3) × r²h cubic units ...2
From equations 1 and 2
Volume of B = 3 x volume of A
The amount of water in Glass B to equal to 3 times of the amount water in Glass A
More about the volume link is given below.
https://brainly.com/question/1578538
#SPJ2
Mrs. Lorentz bought 12 pounds 8 ounces of sugar. This is 1/4 of the sugar she will use to make sugar cookies in her bakery this week. If she uses 10 ounces of sugar for each batch of sugar cookies, how many batches of sugar cookies will she make this week?
Answer:
153
Step-by-step explanation:
Consider the expression.
12(-72)+41(-3 -32)
Answer:
-2299 is the correct answer
Step-by-step explanation:
i used a calculator
Beinggreat78, this is mostly for you. but whoever gets it right can have brainliest, but answer ASAP!
Answer:
yeah it's true
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
It's true that there's 3 ways to write a ratio and those are the 3 ways you can do it.
brainliest if it is right
Answer:
there are three ( 3 ) possible outcomes that are 1,2 and 3
Typically, I would say 3. So there's always that. But it could also be 4 because your spinner could land on a line. So I would say either 3 or 4.