Answer:
= 192 pi units ^3
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2h
The radius is 8 and the height is 3
V = pi ( 8)^2 ( 3)
= 192 pi units ^3
Answer:
192pi
Step-by-step explanation:
The volume of a cylinder can be found with the formula pi*r^2*h where r is radius and h is height. In this problem, 3 is the height and 8 is the radius.
pi*8^2*3
64*3*pi
192pi
Calcula el volumen, en centímetros cúbicos, de una habitación que tiene 5 m de largo, 4 m de ancho y 2.5 m de alto.
Answer:
50,000,000 centímetros cúbicos.
Step-by-step explanation:
En la pregunta anterior, se nos dan las dimensiones de este cubo en metros como:
Longitud = 5m
Ancho = 4 m
Altura = 2.5 m
Nos dijeron que encontraramos el volumen en centímetros cúbicos
Paso 1
Convierta todas estas dimensiones a centímetros
1m = 100cm
Por lo tanto:
Longitud = 5 m = 5 × 100 cm = 500 cm
Ancho = 4 m = 4 × 100 cm = 400 cm
Altura = 2.5 m = 2.5 × 100cm = 250cm
Paso 2
Fórmula para el volumen de un cubo = Largo × Ancho × Alto
Volumen = 500 cm × 400 cm × 250 cm
Volumen = 50,000,000 centímetros cúbicos.
Por lo tanto, el volumen, en centímetros cúbicos, de la habitación es de 50,000,000 centímetros cúbicos.
A shop advertises 25% off its prices in a sale.
A dress is £90 in the sale.
How much was it before the price reduction?
Answer:
it's 22.5
Step-by-step explanation:
You do 25% of 90 =22.5
Answer:
£120
Step-by-step explanation:
A reduction of 25% of the price, means the price of the dress in sale is 75%.
⇒ £90 →75%
X→100%
⇒ the price before the reduction= X=(90×100)÷75=£120
Soon Yi loves to bake, and she is making flaky pastry. Soon Yi starts with a layer of dough 2 22 millimeters ( mm ) (mm)left parenthesis, start text, m, m, end text, right parenthesis thick. The baking process then involves repeatedly rolling out and folding the dough to make layers. Each time Soon Yi rolls and folds the dough, the thickness increases by 8 % 8%8, percent. What is the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5 mm 2.5mm2, point, 5, start text, m, m, end text thick
Answer:
3times
Step-by-step explanation:
Baking Process: repeatedly rolling out and folding the dough to make layers
Soon Yi starts with a layer of dough = 2millimeters
Each time Soon Yi rolls and folds the dough, the thickness increases by 8 % = 1 + 8 %
When time = 1
Thickness = 2(1 + 8 %) = 2(1+0.08)
= 2(1.08) = 2.16
For time = n
Thickness = 2(1 + 8 %)^n = 2(1.08)^n
When thickness ≥ 2.5mm, n= ?
2.5 = 2(1.08)^n
2.5/2 = (1.08)^n
1.25 = (1.08)^n
Since the numbers are close (1.25 and 1.08), we can compute by multiplying 1.08 by itself till we get 2.5.
1.08 ×1.08× 1.08 = 1.259712
(1.08)³ is a bit above 1.25
2(1.08)³ satisfies the thickness of at least 2.5mm
Let's check our answer using the formula:
When n = 3
2(1.08)³ = 2 × 1.259712 = 2.519424
This satisfies the thickness of at least 2.5mm
Therefore, the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5 mm = 3
a line segment has the endpoints of v(0,3) and w(8,9). find the coordinates of its
midpoint
Answer:
4,6
Step-by-step explanation:
midpoint formular= ½(x¹+x²), ½(y¹+y²)
½(0+8), ½(3+9)
½(8), ½(12)
4,6
Vanessa earns $63 tutoring for 3 hrs,how much would vanessa earn in 5 hours
Answer:
$105
Step-by-step explanation:
I used a proportion to solve this:
[tex]\frac{63}{3} = \frac{x}5}[/tex]
Cross multiply:
3x = 315
Divide both sides by 3
x = 105
Answer:$105
Step-by-step explanation:
Salary for 3 hrs=$63
Salary for 5hrs= salary for one hour×5 hrs,
Salary for one hour= 63/3=$21
Salary for 5 hours= 21×5: $105
Its a square triangle with a side length leading from the top which is B down to the little square inside the triangle which is C and A is the sharp tip of the triangle A TO B IS 11CM AND B TO C IS 4 CM QUESTION= WHAT IS THE LENGTH AC
Answer: The length AC equals 10.25 cm (approximately)
Step-by-step explanation: Please refer to the diagram attached for further details.
The triangle has been constructed according to the dimensions provided with the top B going down to the "little square inside the triangle" which is C. This clearly identifies it as a right angled triangle. The point B meets with point C at the right angle and A is the sharp tip of the triangle, which makes point A the third angle. Hence we now have a right angled triangle with side AB measuring 11 cm, side BC measuring 4 cm and side AC is unknown.
We can now apply the Pythagoras' theorem which is stated as follows;
AC² = BC² + AB²
Where AC is the hypotenuse (longest side) and BC and AB are the other two sides. We can now substitute for the appropriate sides in this question as all the sides have been labelled differently. Hence,
BA² = BC² + CA²
11² = 4² + CA²
121 = 16 + CA²
Subtract 16 from both sides of the equation
105 = CA²
Add the square root sign to both sides of the equation
√105 = √CA²
10.2469 = CA
CA ≈ 10.25 cm
The third side AC (or CA) measures approximately 10.25 cm
A circle with radius of \greenD{2\,\text{cm}}2cmstart color #1fab54, 2, start text, c, m, end text, end color #1fab54 sits inside a \blueD{11\,\text{cm} \times 12\,\text{cm}}11cm×12cmstart color #11accd, 11, start text, c, m, end text, times, 12, start text, c, m, end text, end color #11accd rectangle. What is the area of the shaded region? Round your final answer to the nearest hundredth.
Answer:
119.43cm^2
Step-by-step explanation:
The computation of the area of the shaded region is shown below:
As we know that
= Area of the rectangle - Area of the circle
where,
Area of rectangle is
[tex]= length \times breadth[/tex]
[tex]= 11\times 12[/tex]
= 132 cm^2
And, the area of the circle is
[tex]= \pi\times r^2\\\\ = \frac{22}{7} \times 2^2\\\\ = \frac{88}{7} cm^2[/tex]
Now the area of the shaded region is
[tex]= 132 cm^2- \frac{88}{7}cm^2[/tex]
= 119.43cm^2
We simply deduct the area of the circle from the area of the rectangle so that the area of the shaded region.
Answer:
the answer
is 128.86 Step-by-step explanation:
What are the equilibrium price and equilibrium quantity in this situation?
Answer:
The equilibrium price is $2.00, and the equilibrium quantity is 5,000 pounds.
Step-by-step explanation:
edmentum answer
The equilibrium price is $2.00, and the equilibrium quantity is 5,000 pounds.
What is the equilibrium price?
The equilibrium price is the simplest price in which the plans of clients and the plans of producers agree—that is, wherein the quantity clients need to shop for of the product, quantity demanded, is the same as the amount producers need to sell, amount furnished. This not unusual amount is called the equilibrium quantity.
What is the equilibrium price?Equilibrium quantity is when there's no shortage or surplus of a product within the marketplace. Supply and demand intersect, which means the amount of an item that consumers need to buy is identical to the quantity being provided by its producers.
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PLEASE HELP SUPER FAST WORTH ALOT OF POINTS
The ages of alligators in a swamp are normally distributed, with a mean of 50 years and a standard deviation of 4. Approximately what percentage of the alligators are between 45 and 55 years old?
78.87%
10.56%
89.44%
67.76%
Question 2(Multiple Choice Worth 3 points)
(05.03 LC)
Wait times at an orthodontist's office are typically 17 minutes, with a standard deviation of 2 minutes. What percentage of people should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution?
17%
68%
95%
99.7%
Answer:
1) 78.87%
2) 99.7%
Step-by-step explanation:
The z-score for a normal distribution is given by:
[tex]z=\frac{X-\mu}{\sigma}[/tex]
1- The given data is:
σ = 4 years
μ = 50 years
For X = 45 and X =55
[tex]z_1=\frac{45-50}{4}\\z_1=-1.25\\z_2=\frac{55-50}{4}\\z_2=1.25[/tex]
A z-score of -1.25 corresponds to the 10.57th percentile of a normal distribution, while a z-score of 1.25 is equivalent to the 89.44th percentile.
Therefore, the percentage of the alligators are between 45 and 55 years old is:
[tex]P=89.44-10.57=78.87\%[/tex]
78.87% of alligators.
2- The given data is:
σ = 2 minutes
μ = 17 minutes
For X = 11 and X =23
[tex]z_1=\frac{11-17}{2}\\z_1=-3\\z_2=\frac{23-17}{2}\\z_2=3[/tex]
A z-score of -3.0 corresponds to the 0.135th percentile of a normal distribution, while a z-score of 3.0 is equivalent to the 99.865th percentile.
Therefore, the percentage of people that should be seen by the doctor between 11 and 23 minutes is:
[tex]P=99.865-.0135=99.73\%[/tex]
99.7% of people.
Using the normal distribution, it is found that:
78.87% of the alligators are between 45 and 55 years old.99.7% of people should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution.Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X. The Empirical Rule states that for a normal variable, 99.7% of the measures are within 3 standard deviations of the mean.In this problem:
Mean of 50, hence [tex]\mu = 50[/tex].Standard deviation of 4, hence [tex]\sigma = 4[/tex].The proportion between 45 and 55 years old is the p-value of Z when X = 55 subtracted by the p-value of Z when X = 45, then:
X = 55:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{55 - 50}{4}[/tex]
[tex]Z = 1.25[/tex]
[tex]Z = 1.25[/tex] has a p-value of 0.8944.
X = 45:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{55 - 50}{4}[/tex]
[tex]Z = -1.25[/tex]
[tex]Z = -1.25[/tex] has a p-value of 0.1057.
0.8944 - 0.10567= 0.7887.
0.7887 = 78.87% of the alligators are between 45 and 55 years old.
For the second question, by the Empirical Rule, 99.7% of people should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution.
To learn more about normal distribution, you can take a look at https://brainly.com/question/24663213
Factor completely [tex]3x^3-3x^2-18x[/tex].
A - 3x(x + 3)(x + 2)
B - 3x(x + 3)(x − 2)
C - 3x(x − 3)(x + 2)
D - 3x(x − 3)(x − 2)
Will give Brainliest!
Answer:
The answer is 3x(x - 3)(x + 2)
Step-by-step explanation:
3x³ - 3x² - 18x
Factor out 3x from the expression
We have
3x ( x² - x - 6)
Solve the terms in the bracket
We have
3x ( x² + 2x - 3x - 6)
Factor out x the expression in the bracket
We have
3x ( x ( x + 2) - 3( x + 2) )
Factor out x + 2 from the expression in the bracket
We have the final answer as
3x ( x - 3) (x + 2)Hope this helps you.
Which polynomial identity will prove that 35 = 27 + 8?
Which estimate is closest to the answer of this number sentence? 48 x 39 =
Answer:
I don't understand you're description, but 48 x 39 is 1872.
Step-by-step explanation:
a set of five numbers has a mode of 24 a median of 21 a mean of 20 . work out what the numbers could be
Answer:
Step-by-step explanation:
The mode is 24 so we know that at least 2 of the 5 numbers are 24.
The mean is 20 so we know that the 5 numbers add up to 100.
The median is 21 so the third number is 21.
100-(24+24+21)= 31
Now, I am pretty certain that the last 2 numbers can be anything as long as they add up to 31 AND they are not also 21 because 24 then would no longer be the mode.
E.g. 24, 24, 21, 11 & 20
trig and picture pls help
Answer:
Im pretty sure that the answer is 32.
Step-by-step explanation:
Hope this helps
Factor a 2 bc + ab 2 c + abc2
Answer:
[tex]abc\left(a+b+c\right)[/tex] is the required answer.
Step-by-step explanation:
[tex]a^2bc+ab^2c+abc^2\\\\\mathrm{Apply\:exponent\:rule}:\quad \:a^{b+c}=a^ba^c\\\\=aabc+abbc+abcc\\\\=bac\left(a+b+c\right)[/tex]
Best Regards!
A test has 20 questions. The test awards 3 points if the answer is correct and takes away 1 point if the answer is incorrect. A student answered 5 questions incorrectly. How many points did the student lose? pls answer I need helllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllppllllllppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
you can get the crown to answer pls
Answer:
40
Step-by-step explanation:
15x3 = 45
45-5 =40
Mrs. Jacksy served snacks on a circular plate. How many lines of symmetry were on the plate? A. 0 B. 2 C. 4 D. Infinite number
Answer:
D. Infinite number
Step-by-step explanation:
A circular plate can be rotated by a part of a degree and it will look the same (as long as it does not have a design on it)
Assuming this plate does not have a design on it, we can rotate through infinite number of lines of symmetry
Answer:
D. infinite number
Step-by-step explanation:
Hope this helps ^_^
The correlation coefficient between the two quantitative variables is approximately 0.006. What does the value of this correlation coefficient indicate about how well the model fits the data? A.) The model is a good fit. B.) The correlation coefficient is not within the correct range. C.) The model is not a good fit. D.) No conclusion can be drawn regarding how well the model fits the data
The answer is C.) The model is not a good fit.
Can someone please help me I really need help it’s my last question
Answer:
x^2+11x+30
Step-by-step explanation:
This is a parallelogram.
Area of a parallelogram can be found with:
A=bh
Plug our values in.
A=(x+6)(x+5)
FOIL-
First: x*x=x^2
Outside: x*5=5x
Inside: 6*x=6x
Last: 6*5=30
x^2+5x+6x+30
Combine like terms.
x^2+11x+30
A truck covers a distance of 150 km at a certain average speed and then covers another 200 km at an average speed which is 20 km per hour more than the first speed. If the truck covers the total distance in 5 hours, find the speed of the truck.
Answer:
Since the speed can't be negative it was 60 km/h for the first stage and 80 km/h on the second stage, averaging 70 km/h for the whole course.
Step-by-step explanation:
The speed of the truck for the first stage of the route is "x" km/h, while on the second one it raises to "x + 20" km/h. The time it takes to complete each stage is shown below:
[tex]t_{stage 1} = \frac{150}{x}\\t_{stage 2} = \frac{200}{x + 20}[/tex]
The sum of these times must be equal to the total time of the trip, therefore:
[tex]t_{stage1} + t_{stage2} = 5[/tex]
[tex]\frac{150}{x} + \frac{200}{x + 20} = 5\\\frac{150*(x + 20) + 200*x}{x(x + 20)} = 5\\150*x + 3000 + 200*x = 5*x*(x + 20)\\5*x^2 + 100*x - 350*x - 3000 = 0\\5*x^2 - 250*x - 3000 = 0\\x^2 - 50*x - 600 = 0\\x_{1,2} = \frac{-(-50) \pm \sqrt{(-50)^2 - 4*1*(-600)}}{2*1}\\x_{1,2} = \frac{50\pm \sqrt{2500 + 2400}}{2}\\x_{1,2} = \frac{50\pm \sqrt{4900}}{2}\\x_{1,2} = \frac{50 \pm 70}{2}\\x_{1} = 60\\x_{2} = -10[/tex]
Since the speed can't be negative it was 60 km/h for the first stage and 80 km/h on the second stage, averaging 70 km/h for the whole course.
Two students are in charge of finding how many T-shirts to order for the students that want one. Each student collects sample data. The conclusions are shown. Compare the students' conclusions. Whose inference do you agree with? Explain. If there are 504 students in the school, use the better conclusion to estimate the number of T-shirts the school should order.
Student 1: Simple random sample; StartFraction 35 Over 50 EndFraction
said they would like a T-shirt, so order enough for 70% of the school.
Student 2: Systematic sample; StartFraction 51 Over 60 EndFraction
said they would like a T-shirt, so order enough for 85% of the school.
Answer:
student 2
Step-by-step explanation:
35/50 = 70%
51/60 = 85%
When constructing parallel lines with a compass and straightedge, how should you start the construction? Measure the length of the original line and make an arc. Create a line that intersects the given line with your straightedge. Open the compass to the width of the line and draw two arcs. Use a straightedge to create two arcs above and below the line.
Answer:
The second choice.
Step-by-step explanation:
Open the compass to the width of the line and draw two arcs.
These arcs should be on the same side of the original line.
You can then draw the parallel line with the straight edge just touching the top of each arc.
Parallel lines can be drawn using compass and straightedge using the concept of corresponding angle.
What are the parallel lines?Two lines are called parallel when they never meet each other if they are increased on the either side of them.
When constructing parallel lines with a compass and straightedge we can follow the below mentioned steps.
1. At first we need to draw a straight line. Then take a random point on it.
2. After that, we need to take a random point above the line that is drawn. Then, we need to connect two points.
3. After that, draw two arcs using the compass. First arc is on the angle formed by two lines drawn. The next arc is on the line that connects two points.
4. Now using the compass, we can copy the angle formed on the first line on the point above the first line.
5. Now, complete the angle on the point above the first line. These two lines are parallel lines.
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HURRY PLEASE HELP Which quadratic function fits the three points (1, −2), (2, −2), and (3, −4)? A. y = x2 − 3x − 8 B. y = x2 + 3x − 4 C. y = −x2 − 4x + 4 D. y = −x2 + 3x − 4
Answer:
D
Step-by-step explanation:
If we plug in the points to A, not all 3 of them work so A is not the answer. If we repeat this process with the other functions we see that the answer is D.
A restaurant offers 6 choices of appetizer, 8 choices of main meal, and 5 choices of dessert. A customer can choose to eat just one course, or two different courses, or all three courses. Assuming all choices are available, how many different possible meals does the restaurant offer?
Step-by-step explanation:
For one course:
6+8+5=
Two courses with appetizers and main meals (* means times)
6*8
Two courses with appetizers and dessert
6*5
Two courses with main meals and dessert
8*5
Which expression represents a difference of squares ?
Answer:
first and last options
Step-by-step explanation:
Difference of squares are in the form a² - b². The only choices that satisfy this are 25x² - 36 and 1 - 16x².
Answer:
1 and 4
Step-by-step explanation:
two angles of a triangle measure 32 degrees and 62 degrees what is the measure of the third angle? A) 76 degrees B) 86 degrees C) 94 degrees D) 96 degrees
Answer:
86 B
Step-by-step explanation:
32+62=94
180-94=86
The sum of the interior angles of a triangle always add up to 180 degrees.
Answer:
The third angle is 86
Step-by-step explanation:
The sum of the angles of a triangle add to 180
32+62+x = 180
94+x = 180
Subtract 94 from each side
x = 180-94
x =86
Please Help...Anyone? I am revising for a test tomorrow, so please explain how you get the answer, too.. The ratios of the ages of Sunil and his Wife is 4:3. After 4 years, the ratio will be 9:7. What is the present age of Sunil
Answer:
32 years old
Step-by-step explanation:
Please see attached picture for full solution.
Let Sunil's present age be 4x and his wife's present age be 3x.
Find the solution of this system of equations
- 2x + 10y = -22
-2x - 4y = 6
Answer:
x = 1, y = -2
Step-by-step explanation:
- 2x + 10y = -22 _______(1)
-2x - 4y = 6 _______(2)
From (1),
10y + 22 = 2x
x = (10y + 22) / 2
x = 5y + 11 .______(3)
Substitute (3) into (2),
-2 ( 5y + 11) -4y = 6
-10y - 22 - 4y = 6
-14y = 6 + 22
-14y = 28
y = 28/ -14
y =-2
Substitute y = -2 into (3).
x = 5y + 11
x = 5(-2) + 11
x = -10 + 11
x = 1
Therefore, the solution is x = 1, y = -2.
The school aims to raise a minimum of $5,250 after paying for all the expenses. If the school collects $50 per guest and chooses a venue that can seat not more than 150 guests, what is the minimum number of children that must attend the event?
At least 105 children must attend the event
i dont think i did this right what do u guys think
Answer:
see below
Step-by-step explanation:
To find the percent increase, take the new amount and subtract the original amount
25-20 = 5
Divide by the original amount
5/20 = .25
The increase is 25%
100% + 25% = 125%
The new amount is 125% of the old amount
Answer:
yes........ correct
Step-by-step explanation:
Although, the method that i tried to justfy is not the same as yours, I got the same final answer. so, what you wrote is right.