12345678910 - 12345678910 = 0
Jovie’s boss tells her to make 6 inch ribbon curls. If she makes 60 ribbon curls per hour, how many hours would it take her to make 480 ribbon curls? Write an equation and then solve.
Answer:
To make 480 ribbon curls, it would take 8 hours.
Step-by-step explanation:
x=480/60
x=8
Love the Elf reference btw. Hope this helped! :D (Sorry if I'm wrong)
if you have a class with 32 students and 16 of them are boys how many girls are there in the class
Answer: if there are 32 students in the class and 16 are boys so the other half well be 16 girls. 16 + 16 = 32. Sooo the answer is 16 girls
Step-by-step explanation:
What is the solution to the inequality -6+12p+31 > 71
Step-by-step explanation:
-6 + 12p + 31 > 71
12p + 25 > 71
12p > 46
p > 23/6.
Answer:
Step-by-step explanation:
12p>71+6-31
12p>46
p>23/6
1. Name the two-dimensional shapes that when rotated around the vertical axis form the following three-dimensional solids?
Cone:
Cylinder:
Sphere:
2. Name four, three-dimensional solid objects found in your home, workplace, etc. , and tell what geometric solid each most closely represents.
Object 1:
Object 2:
Object 3:
Object 4:
3. State the volume formulas for a cylinder, sphere, pyramid, and cone.
a. Volume formula for a cylinder:
b. Volume formula for a sphere:
c. Volume formula for a pyramid:
d. Volume formula for a cone:
Problem 1
Answers:
Cone: TriangleCylinder: RectangleSphere: Circle------------------------
Explanation:
Imagine a fan blade rotating. As it rotates really quickly, it occupies a 3D space. Or perhaps imagining rotating eggbeaters is a better thing to have in mind. Those blades spin really fast to form a 3D shape. So that's what's going on with this problem. If you spin a triangle around an axis, a cone will form. The base of the triangle forms the base of the cone. Half the base of the triangle is the radius of the cone. The height of the triangle is the height of the cone.
Similarly, a rectangle rotated around its center axis forms a cylinder. Think of a revolving door. That's often a classic example. Finally, a circle spun around any of its diameters will form a sphere.
========================================================
Problem 2
Answers:
Object 1: Cup = CylinderObject 2: Ball = SphereObject 3: Funnel = ConeObject 4: Paper towel roll = Cylinder-------------------------------
Explanation:
Pick objects around your house that are fairly simple in design and resemble either a cylinder, sphere, or cone. A cup resembles a cylinder just it doesn't have a top to it. A ball is a 3D sphere that has an interior to it, unless the ball is filled with air. A funnel resembles a cone due to its triangular shape of sorts. A paper towel roll (the card board piece or the cardboard plus the actual paper towels) resemble a cylinder as well. You can pick any four other objects you have around your house such as a cylindrical speaker, batteries (shaped as a cylinder), soup cans (also cylinders), and so on.
========================================================
Problem 3
Answers:
a) volume of cylinder = pi*r^2*hb) volume of sphere = (4/3)*pi*r^3c) volume of pyramid = (1/3)*L*W*Hd) volume of cone = (1/3)*pi*r^2*h-------------------------------
Explanation:
These formulas are what you should memorize or have handy on a flashcard. It is possible to derive them, but it would require calculus to do so. Also, such a process is quite length. So memorization or flashcards are the better way to go.
For the cylinder and cone, r is the radius and h is the height. Note how the formulas are nearly identical except the cone has the (1/3) term. This shows that the cone's volume is 1/3 that of the cylinder's volume where they both have the same radius r and height h.
The sphere also deals with the radius r, but we don't have to worry about the height of the sphere (it's really just 2r).
For the pyramid, L,W,H represent the length width and height respectively. The length and width form the base of the pyramid. Recall that L*W*H is the volume of a rectangular block. The volume of a pyramid is 1/3 of that rectangular block's volume.
If all of a 2D object's sides and angles have different lengths, such shape is said to be irregular.
What is 2D shape?In geometry, a form or figure having length and breadth is referred to as a "2D shape." Due to the lack of a thickness, a third dimension, such as the case of a prism or a cube, two-dimensional or 2D objects are often measured in terms of their two faces.
'2D' refers for 2-dimensional. A 2D shape is any form that has two dimensions. Consider for a moment what it means to have two dimensions. We could only move backwards or forwards in a straight line if we only had one dimension to work with. One dimension is a line.
Cone: Triangle
Cylinder: Rectangle
Sphere: Circle
Therefore, if all of a 2D object's sides and angles have different lengths, such shape is said to be irregular.
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In a particular triathlon the athletes cover 1/24 of the total distance by
swimming, 1/3 of it by running, and the rest by bike. What is the ratio of
the distance covered by bike to the distance covered by running?
Answer:
15/8
Step-by-step explanation:
Let "d" be the total distance, that is, the distance for swimming (s), running (r) and going by bike (b).
d = s + r + b [1]
1/24 of the total distance is covered by swimming.
s = 1/24 d [2]
1/3 of the distance is covered by running.
r = 1/3 d [3]
If we replace [2] and [3] in [1], we get
d = 1/24 d + 1/3 d + b
b = d - 1/24 d - 1/3 d
b = 24/24 d - 1/24 d - 8/24 d
b = 15/24 d = 5/8 d
The ratio of the distance covered by bike to the distance covered by running is:
b/r = (5/8 d)/(1/3 d) = 15/8
Rank in Oder 4/9,2/3,7/12,5/6
Answer:
The sorted inputs in order from least to greatest is:
4/9 < 7/12 < 2/3 < 5/6
Step-by-step explanation:
Using the given inputs:
4/9,2/3,7/12,5/6
The least common denominator (LCD) is: 36
Rewriting as equivalent fractions with the LCD:
4/9, 2/3, 7/12, 5/6
16/36, 24/36, 21/36, 30/36
Sorting this table by the numerators of the equivalent fractions in order from least to greatest:
4/9 7/12 2/3 5/6
16/36 < 21/36 < 24/36 < 30/36
Therefore, the sorted inputs in order from least to greatest is:
4/9 < 7/12 < 2/3 < 5/6
give example of a monotone subsequence of the sequence Sn=cos(n.π/3)
A monotone subsequence is a subsequence that is either increasing or decreasing, which we define as follows:
A sequence (S) is increasing if [tex]S_n \geq S_m[/tex] whenever n>m.A sequence (S) is decreasing if [tex]S_n \leq S_m[/tex] whenever n>m.Here, we can create a subsequence by taking every sixth term:
• When n = 6, [tex]S_n = \cos(6\pi /3) = \cos(2\pi) = 1[/tex]
• When n = 12, [tex]S_n = \cos(12 \pi /3) = \cos(4\pi) = 1[/tex],
and so on, and every such element will have a value of 1. This is a monotone subsequence.
In a recent News, it was reported that light trucks, which include SUV’s , pick-up trucks and minivans, accounted for 40% of all personal vehicles on the road in 2012. Assume the rest are cars. Of every 100,000 cars accidents, 20 involve a fatality; of every 100,000 light trucks accidents, 25 involve a fatality. If a fatal accident is chosen at random, what is the probability the accident involved a light truck?
Answer:
45.45%Step-by-step explanation:
Light tracks = 40% = 0.4Cars = 60% = 0.6Fatal accidents involving light tracks:
25/100000 = 0.00025Fatal accidents involving cars:
20/100000 = 0.0002Probability of a fatal accident involving a light track:
p = involving light tracks /involving both cars and light tracksp = 0.4*0.00025/(0.4*0.00025 + 0.6*0.0002) = 0.4545 p = 45.45%A function is a relation in which the value of the domain (x-values) DO NOT repeat.
O True
O False
Answer:
true
Step-by-step explanation:
26+5 i am in kinder pls help
What is the value of a3 - b2 for a = 3 and b =1/2 ?
Step-by-step explanation:
a = 3[tex]b = \frac{1}{2} [/tex]Answer
[tex] {a}^{3} - {b}^{2} [/tex]
[tex] = {3}^{3} - { \frac{1}{2} }^{2} [/tex]
[tex] = 27 - \frac{1}{4} [/tex]
[tex] = \frac{107}{4} [/tex]
[tex] = 26 \frac{3}{4} [/tex]
sorry if wrong :)
Here are three symbols.
<
>
=
Write one of these symbols in each box to make four true state
Step-by-step explanation:
4 + 9 = 3 ^ {2}
13=3^{2}
13=9
Answer:
a. <
b. =
c. =
d. >
these are correct I guess
A plant has a height of 8 1/4 inches. What is the height of the plant after it grows 1 7/8 inches?
6 minutes to 16 minutes
Answer:
um im not sure if you need to simplify but then the answer would be 3 minutes to 8 minutes.
what is 98.704 in expanded using powers of ten
Answer:
[tex]9.8704 * 10^1[/tex]
Step-by-step explanation:
The standard form is called the scientific notation expressed generally as;
[tex]A * 10^n[/tex]
A is an integer between 1 and 10
n is ant integer or fraction
Given the decimal value 98.704, we ill shift the decimal point to the back once to have;
98.704 = [tex]9.8704 * 10^1[/tex]
Note the when the decimal point is shifted backwards the value of n is always positive. Hence the expansion in power of 10 is [tex]9.8704 * 10^1[/tex]
Plz answer will mark brainliest
Answer:
3cm
It would be 3.35, but rounded it is 3cm
Step-by-step explanation:
268/80 = 3.35
Solve five ninths minus two sixths
options:
twelve fifty fourths
twenty fifty fourths
six thirds
three over one
Stephanie has three shirts for every two pairs of jeans that she owns. If she owns 14 pairs of jeans, then how many shirts does she own?
Answer:
21 shirts
Step-by-step explanation:
Ratio jeans to shirts: 2:3
Mutiply by the same
2 to get to 14 is 7
7 x 2 = 14
7 x 3 = 21
Answer: i think the answer is 21
Step-by-step explanation:
Solve for points....
Answer:
Step-by-step explanation:
For Mr Rowley,
Ratio of Number of home works to the number of exit tickets = [tex]\frac{12}{14}[/tex]
= [tex]\frac{6}{7}[/tex]
= 6:7
For Ms Rivera,
Ratio of Number of home works to the number of exit tickets = [tex]\frac{36}{42}[/tex]
= [tex]\frac{6}{7}[/tex]
= 6:7
Since, both the ratios are same, fractions will be proportional.
[tex]\frac{12}{14}=\frac{36}{42}[/tex]
A 14-ounce energy drink contains 42 teaspoons of sugar. How much sugar is one ounce of the drink?
Answer:
3 teaspoonsStep-by-step explanation:
14-ounce ⇒ 42 teaspoons of sugar14/14 ounce ⇒ 42/14 = 3 teaspoons of sugar1-ounce ⇒ 3 teaspoons of sugarTwo pounds of dried cranberries cost $5.04, 3 pounds of dried cranberries cost $7.56, and 7 pounds of dried cranberries cost $17.64. What equation gives the total cost y of x pounds of dried cranberries?
Answer:
y = 2.52x
y = cost, x = pounds of cranberries.
each pound costs 2.52
Step-by-step explanation:
5.04/2 = 2.52
Gravel is being dumped from a conveyor belt at a rate of 35 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast (in ft/min) is the height of the pile increasing when the pile is 15 ft high? (Round your answer to two decimal places.)
Answer:
The height of the pile is increasing at a rate of 1.78 ft/min
Step-by-step explanation:
As we can see, we have the rate at which the volume is increasing
Mathematically, the volume of a cone can be calculated by the formula;
1/3 * π * r^2 * h
but here, we are dealing with base diameter which is d
and r is d/2
So we have the formula as;
1/3 * π * (d/2)^2 * h
since h is same as d for this particular cone, we can replace d with h so that we now have;
1/3 * π * h^3/4
= πh^3/12
what we have in the question is dv/dt
what we want to calculate is dh/dt
Mathematically;
dh/dt = dh/dv * dv/dt
dh/dv is 1/dv/dh
dv/dh = πh^2/36 where h = 15
dv/dh = 225 π/36
dh/dv is now;
36/225π
So, finally;
dh/dt = 36/225 π * 35
dh/dt = 1.78 ft/min
If F(x)= logx, which statement best describes the transformation (0.5(x-3)) + 12
What is the value of x 39 (2x+1)
Answer:
2xx_{39}+x_{39}
Step-by-step explanation:
x 39 ( 2 x + 1 )
Use the distributive property to multiply x_{39} by 2x+1.
2x_{39}x+x_{39}
2xx_{39}+x_{39}
Given the points (-1,1) and (-2,1) on the line find the equation of the line
Christopher is deciding between two landscaping companies for his place of business. Company A charges $30 per hour and a $200 equipment fee. Company B charges $50 per hour and a $100 equipment fee. Let
A
A represent the amount Company A would charge for
t
t hours of landscaping, and let
B
B represent the amount Company B would charge for
t
t hours of landscaping. Write an equation for each situation, in terms of
t
,
t, and determine the number hours,
t
,
t, that would make the cost of each company the same.
Answer:
A=30t+200
B=50t+100
The number of hours,t, that would make the cost of each company the same is 5.
30(5)+200= A
150+200=350
50(5)+100= B
250+100=350
Rachel’s penny bank is 1/2 full. After she adds 120 pennies, it is 7/10 full. How many pennies can Rachel’s bank hold?
Answer:
600 pennies
Step-by-step explanation:
to start you need to understand that 1/2=5/10 so if we start with the bank 5/10 full and she adds 120 pennies that goes up 2/10. so that means 1/10 of the bank holds 60 pennies. so to find the answer you need to multiply the 60 pennies by 10, because 10*60 would be equal to the entire bank.
A regular 12-gon has side length 8 inches. What is its area?
Answer:
RELATED
How to Solve a Hexagon
Updated October 23, 2018
By Chris Deziel
A polygon is any closed two-dimensional figure with 3 or more straight (not curved) sides, and a 12-sided polygon is known as a dodecagon. A regular dodecagon is one with equal sides and angles, and it's possible to derive a formula for calculating its area. An irregular dodecagon has sides of different lengths and different angles. A six-pointed star is an example. There's no easy way to calculate the area of an irregular 12-sided figure unless you happen to have it plotted on a graph and can read the coordinates of each of the vertices. If not, the best strategy is to divide the figure into regular shapes for which you can calculate the area.
Calculating the Area of a Regular 12-Sided Polygon
To calculate the area of a regular dodecagon, you have to find its center, and the best way to do that is to scribe a circle around it that just touches each of its vertices. The center of the circle is the center of the dodecagon, and the distance from the center of the figure to each of its vertices is simply the radius of the circle (r). Each of the 12 sides of the figure is the same length, so denote this by s.
You need one more measurement, and that's the length of a perpendicular line drawn from the midpoint of each side to the center of the 12-sided shape. This line is known as the apothem. Denote its length by m. It divides each section formed by the radius lines into two right-angled triangles. You don't know m, but you can find it using the Pythagorean theorem.
The 12 radius lines divide the circle you scribed around the dodecagon into 12 equal sections, so at the center of the figure, the angle each line makes with the one next to it is 30 degrees. Each of the 12 sections formed by the radius lines is made up of a pair of right-angled triangles with hypotenuse r and one angle of 15 degrees. The side adjacent to the angle is m, so you can find it using r and the sine of the angle.
Step-by-step explanation:
The area of the polygon is 344.18 square inches.
What is the area?The area is the amount of area occupied by an object's flat (2-D) surface or shape.
Given:
A regular 12-gon has a side length of 8 inches.
Apothem of the polygon,
a = {8/2(tan180/8)}
a = 8/2tan22.5
a = 7.17 inches.
The area of the polygon,
= 12 x 8 x 7.17 / 2
= 344.18 square inches.
Therefore, the area is 344.18 square inches.
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NEED HELP WITH THIS PLEASE
Answer:
-25 + 75 = 50
Step-by-step explanation:
Since we don't know the value of the bar, we will call it x.
-25 + x = 50
Add 25 to both sides to find the value of x.
x = 75
You can also double check this answer by doing simple math.
-25 + 75 = 50
Four boxes of cookies cost $18 how much does one box of cookies cost
Answer:
$5.50
Step-by-step explanation:
Answer:
You would get 4.5 as your answer or 4 1/2
Step-by-step explanation:
You literally just do 18/4
And you get your answer
