Find the volume of a cylinder if it has a diameter of 8 and a height of 12. Leave your answer in terms of pi
A) 64 pi
B)192 pi
C) 256 pi
D)768 pi

Answers

Answer 1

Answer:

  B)  192 pi

Step-by-step explanation:

The volume of a cylinder is found from the formula ...

  V = πr²h

where the radius is r and the height is h. The radius is half the diameter.

__

  V = π(8/2)²(12) = 192π . . . . . . using the given values


Related Questions

Which is true about the line whose equation is y + 3 = 0?


The slope is 3.


The y-intercept is 3.


The slope is zero.


The value of x always equals the value of y.

Answers

Answer:

The slope is 0

Step-by-step explanation:

Solve the equation for y

y+3=0

y = -3

The slope intercept form is

y = mx+b

where m is the slope and b is the y intercept

y = 0x-3

The slope is 0 and the y intercept is -3

Answer: The Slope Is 3

Step-by-step explanation:

You are missing the x after the 3.

considering the linear equation y=mx+b, the coefficient of x is ALWAYS the slope (rate of change)

simplify the following

Answers

Answer:

[tex]-20\sqrt{3}-5\sqrt{2}[/tex]

Step-by-step explanation:

Given expression:

[tex]4 \sqrt{12}-\sqrt{50}-7\sqrt{48}[/tex]

Rewrite 12 as 4 · 3  and 50 as 25 · 2 and 48 as 16 · 3 :

[tex]=4 \sqrt{4 \cdot 3}-\sqrt{25 \cdot 2}-7\sqrt{16 \cdot 3}[/tex]

[tex]\textsf{Apply radical rule} \quad \sqrt{a \cdot b}=\sqrt{a}\sqrt{b} :[/tex]

[tex]=4 \sqrt{4}\sqrt{3}-\sqrt{25}\sqrt{2}-7\sqrt{16}\sqrt{3}[/tex]

As [tex]\sqrt{4}=2[/tex] and [tex]\sqrt{25}=5[/tex] and [tex]\sqrt{16}=4[/tex] then:

[tex]=4 \cdot 2 \sqrt{3}-5\sqrt{2}-7 \cdot 4\sqrt{3}[/tex]

Simplify:

[tex]=8\sqrt{3}-5\sqrt{2}-28\sqrt{3}[/tex]

Collect like terms:

[tex]=8\sqrt{3}-28\sqrt{3}-5\sqrt{2}[/tex]

Combine like terms:

[tex]=-20\sqrt{3}-5\sqrt{2}[/tex]

Which of the following are solutions to the inequality below? Select all that apply.

8 ≤ j j = 12 j = 5 j = 6 j =11

Answers

Answer:

    j = 11

    j = 12

Step-by-step explanation:

   The inequality:

8 ≤ j

   We will test all the options given.

-> In short, all options greater or equal to 8 will be solutions.

j = 12

8 ≤ j

8 ≤ 12 ✓

-

j = 5

8 ≤ j

8 ≤ 5 ✗

-

j = 6

8 ≤ j

8 ≤ 6 ✗

-

j =11

8 ≤ j

8 ≤ 11 ✓

205000 seconds to a year

Answers

Answer:

theres 31536000 seconds in a year

Answer:

0.0065 calendar year

Step-by-step explanation:

How many seconds makes a year?

it is 31,536,000 seconds

for an approximate result, divide the time value by 3.154⁷

therefore 205000/3.154⁷

=0.00649

=0.0065

Simplify the equation √-42×√-30

Answers

Answer:

-6 [tex]\sqrt{35}[/tex]

Step-by-step explanation:

Answer:

[tex]6\sqrt{35}i[/tex]

Step-by-step explanation:

Points J, Q, K, and l are on the given circle. If Arc KL measures 120 degrees, and Angle KML measures 98 degrees, what is the measure of Arc JQ?

Answers

The value of the measure of Arc JQ from the given task content is; 142⁰.

What is the measure of Arc JQ?

The measure of Arc JQ can be evaluated by establishing a fact that; the total angle measure in a circle by convention is; 360⁰.

On this note, it follows that the measure of Arc JQ is; 360 - 120 - 98 is; 142.

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what is the measurement of angle c

Answers

Answer: 29

Step-by-step explanation:

all triangles equal to 180

180-97-54=29

29 because u subtract the other angles from 180 and it's what is left

b) In one year, Clara and Dave borrowed books from a library in the ratio 3:7. Dave borrowed 35 books. Work out the number of books borrowed by Clara.​

Answers

3:7 =

3/7

3/7 = x/35

7x = 105

x = 15

answer : clara borrowed 15 books

I think it would be 15, because 3 doesn't go in evenly into 35. You might have the order of the ratio messed up.

Step 1: –10 + 8x < 6x – 4
Step 2: –10 < –2x – 4
Step 3: –6 < –2x
Step 4: ________

What is the final step in solving the inequality –2(5 – 4x) < 6x – 4?

x < –3
x > –3
x < 3
x > 3

Answers

x > 3

Step-by-step explanation:

The final step in solving the inequality –2(5 – 4x) < 6x – 4 is

-6/-2 < x = 3 < x

Find the area of this semi-circle with diameter,
d
= 11cm.
Give your answer rounded to 2 DP.

Answers

Answer: 47.52 cm

Explanation:
The area of a circle is given by the formula A=πr^2. The area of a semicircle is half of a circle, so the equation is A=1/2πr^2. The diameter of the semicircle is 11 cm, so the radius is 11/2 = 5.5 cm.
Putting the numbers into the equation:
A = 1/2π(5.5)^2
A = 47.52 cm

Ask an expert 2+3/10X>=13/20 Solve for inequality Thanks!

Answers

Answer:

The answer is in the picture.

Step-by-step explanation:

[tex]2+\frac{3}{10x}\geq\frac{13}{20} \\\\\frac{3}{10x}\geq\frac{13}{20} -2 \\\\\frac{3}{10x}\geq\frac{13}{20} -\frac{40}{20} \\\\\frac{3}{10x}\geq-\frac{27}{20} \\\\3\geq-\frac{27}{20}*10 x \\\\3\geq-\frac{270}{20} x\\\\3\geq-\frac{27}{2} x \\\\3*-\frac{2}{27} \leq x\\\\-\frac{6}{27} \leq x\\\\-\frac{2}{9} \leq x[/tex]

Also x cannot equal to 0 if you plug in into the original equation the answer is indefinite/not solution.

How many full cases and additional items are needed to fulfill the order

Answers

There are 13 full cases and 2 additional items needed to fulfill the order

How to determine the full cases and additional items?

The given parameters are:

Items ordered = 80Items per case = 6

The number of cases is:

Case = 80/6

Evaluate

Case = 13 Remainder 2

This means that:

The full case is 13 and the additional item is 2

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I need to solve for X

Answers

Answer:

x = 10.5

Step-by-step explanation:

Intersecting chord theorem : If two chords intersect within a circle then the product of the measures of the segemnts made up of the chords are equal to each other.
For more reference to this, kindly view the attatched image.

Applying this theorem we would create an equation which would be 2 × x = 7 × 3

We then solve for x

2 × x = 7 × 3

==> simplify both sides

2x = 21

==> divide both sides by 2

x = 10.5

Lorena paid $450 for a sneaker and there is a 9% advertised discount. What is the discount price?

Answers

Answer:

$40.50

Step-by-step explanation:

9% of 450 is 40.5

answer: $409.50

ok so, original price 450. 9% discount. discount price is the price after discount, so lets find the discount value. 9% of 450 is 40.5. now subtract that from the original price of 450. 450-40.5=409.50

The table below shows the distribution of votes for Student Government President elections.

1.What is the probability that a junior voted for Dao?

2.Voted for Wolber

3.Votes for Keegan and was from the sophomore class.

Answers

Answer:

1 out of 3 people vote for junior

Step-by-step explanation:

The mean weight of college students is 154 lbs and the standard deviation is 3 lbs.
Assuming that the weight is normally distributed, determine the following percentages.
145 148
151
154 157 160 163
DO NOT write % in the box. It is already written outside the box for you"
The percentage of college students who weigh...
30
1)...less than 157 is
%
2) greater than 148 is
3)...between 145 and 160 is
%
%

Answers

Answer:(approx) 6.

Step-by-step explanation:Here μ=51 and σ=15

Z=

σ

X−μ

=

15

X−151

When X=120, Z=

15

120−151

=−2.067

When X=155, Z=

15

155−151

=0.2667

When X=185, Z=

15

185−151

=

15

35

=2.2667

(i) P(120<X<155)=P(−2.07<Z<0.27)

=∫

−2.067

0.2667

ϕ(z)dz=∫

0

0.2667

ϕ(z)dz+∫

0

2.0667

ϕ(z)dz

=0.4803+0.1026=0.5829.

Here N=500

∴ The number of students whose weight is between 120 and 155 pounds is

0.5872×500=291

(ii) P(X<185)=P(Z>2.27)=∫

2.2667

ϕ(z)dz

=∫

0

ϕ(z)dz−∫

0

2.2667

ϕ(z)dz=0.5−0.4881=0.0119

∴ the number of students with weight about 185 pounds.

=0.0119×500= (approx) 6.

Two of the angles in a triangle measure 57º and 25°. What must be the measure of the
third angle?
The measure of the third angle is



Plssss i need the answer

Answers

The measure of the third angle in the triangle is 104 degrees

How to determine the measure of the third angles?

Let the three angles in the triangle be x, y and z.

Such that:

x = 51

y = 25

The sum of angles in a triangle is 180 degrees.

So, we have:

x + y  + z = 180

Substitute known values

51 + 25 + z = 180

Evaluate the sum

76 + z = 180

Subtract 76 from both sides

z = 104

Hence, the measure of the third angle is 104 degrees

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Please help asap! Thanks

Answers

[tex]y=f(x)= \dfrac x 3 \\\\\text{Replace x with y and then solve for y,}\\\\~~~~x = \dfrac y 3\\\\\implies y = 3x \\\\\implies f^{-1}(x) =3x[/tex]

8th grade distributive property equations and solutions ​

Answers

The value of x will be given as for the given expression X = -1

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division

2x  +  12  =  10

2x  =  10 - 12

2x  =  -2

x    =   -1

first you distribute 2 to x and 6 which equals 2x+12=10 then you subtract 12 from 10 which equals 2x=-2 then divide -2 by 2x to see what x equals so x=-1

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Make up a question that you need to use 6 fractions to solve! It needs to involve subtraction. It can involve addition too.

Answers

Answer:

6/4-3/2(12/8+27/4)9/8x30/12=

4x4 y3 + v y + 7

Leading term:

Leading coefficient:

Constant term:

Answers

Answer:

Leading term: 4x⁴y³

Leading coefficient: 4

Constant term: 7

The leading term contains the highest degree and power of variable.The leading coefficient is the number written in front of the variable with the largest exponent.The constant term is the simplified number written where there are no variables.

Answer:

Leading terms : 4x⁴y³

Leading co-efficient: 4

Constant: 7

Step-by-step explanation:

Leading term: Leading term is the term that holds the highest degree of the  polynomial.

     

Leading co-efficient is the coefficient of the leading term.

Constant term is the term without any variable

Find the area of the figure. Round to the nearest hundredth where necessary.
22 ft
30 ft

Answers


[tex]\bold{ANSWER:}[/tex]
215.20 ft^2

[tex]\bold{SOLUTION:}[/tex]

Find the volume of the rectangular prism.
8 cm
10 cm
2 cm
10 cm
OA. 160.5 cm³
B. 182.4 cm³
Oc. 181.4 cm³
D. 160 cm³
2 cm

Answers

Answer:

volume= lxbxh= 10*8*2= 160 cm3

What is the equation of the circle with a radius of 7 and center at (6, -5)?
A (x + 6)2 + (y - 5)2 = 49
B (x - 6)2 + (y + 5)2 = 7
C (x + 6)2 + (y - 5)2 = 7
D (x - 6)2 + (y + 5)2 = 49

Answers

Answer:

D is the equation of the circle

NO LINKS!! Please help me with this graph. Part 2​

Answers

Answer:

[tex]\large{\boxed{\sf y = \dfrac{2}{3} | x -6|- 7}}[/tex]

Explanation:

Absolute value of a graph formula:

y = a |x -h| + k

Identify the vertex : (h, k) = (6, -7)

Take two points: (6, -7), (9, -5)

 [tex]\sf Find \ slope \ (a) : \sf \ \dfrac{y_2 - y_1}{x_2- x_1} \ = \ \ \dfrac{-5-(-7)}{9-6} \ = \ \ \dfrac{2}{3}[/tex]

Join them to build the equation:   [tex]\bf{y = \dfrac{2}{3} |x - 6| - 7}[/tex]

Answer:

[tex]g(x)=\dfrac{2}{3}|x-6|-7[/tex]

Step-by-step explanation:

Translations

For [tex]a > 0[/tex]

[tex]f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}[/tex]

[tex]y=a\:f(x) \implies f(x) \: \textsf{stretched parallel to the y-axis by a factor of}\:a[/tex]

-----------------------------------------------------------------------------------------

Parent function:  [tex]f(x)=|x|[/tex]

[tex]f(0)=|0|=0 \implies \textsf{The vertex of the parent function is at (0, 0)}[/tex]  

From inspection of the graph, the vertex of the transformed function is at (6, -7).  Therefore, there has been a translation of:

6 units right7 units down

[tex]\textsf{6 units right}\implies f(x-6) =|x-6|[/tex]

[tex]\textsf{and 7 units down}\implies f(x-6)-7=|x-6|-7[/tex]

From inspection of the graph, we can see that it has been stretched parallel to the y-axis:

[tex]\implies a\:f(x-6)-7=a|x-6|-7[/tex]

The line goes through point (0, -3)

Substituting this point into the above equation to find [tex]a[/tex]:

[tex]\implies a|0-6|-7=-3[/tex]

[tex]\implies 6a=4[/tex]

[tex]\implies a=\dfrac{2}{3}[/tex]

Therefore,

[tex]\implies g(x)=\dfrac{2}{3}|x-6|-7[/tex]

Please help me fill out the blanks.

Answers

Answer:

Acute angle : 30*      Obtuse angle : 120*

Step-by-step explanation:

Hope this helps :)

Answer:

acute angle- less than 90 degrees

obtuse angle- 120 degrees

Step-by-step explanation:

I don’t understand and I need the answer

Answers

Answer:

y2 + 2y + 80

Step-by-step explanation:

Hope this helpd :) Mark brainliest?

Answer:-21

Step-by-step explanation:

-21 i think but im pretty sure

Show what you know: work out the problems below and submit a photo of your work to receive full credit.

The Florida A&M Rattlers are decorating campus for homecoming weekend. Students use 3 rolls of orange streamers for every 2 rolls of green streamers for every dorm they decorate.

Draw a model that represents the ratio of different colored streamers.
Draw a model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.

Answers

The model for representing the ratio of the number of orange and green rolls are  [tex]\dfrac{3}{2}[/tex].

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms will be 3O=2G

What is ratio?

The ratio is defined as the representation of the one number with respect to the other number. or one number is how many times to the other number.

A model that represents the ratio of different colored streamers.

[tex]\dfrac{O}{G}=\dfrac{3}{2}[/tex]

A model that shows the number of orange and green streamers needed to decorate 3 dorm rooms.

D=3O   and  D=2G

3O=2G

Hence the models are  [tex]\dfrac{O}{G}=\dfrac{3}{2}[/tex]  and  3O=2G.

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If you want to make a comment that won’t be seen in r console (output) use .. what
#
print (“ “)
sum ()
rflip()

Answers

Answer: A) #

Detailed Explanation:

A ‘#’ can be used in Python to comment out a piece of code that you don’t want to run, to write down specific comments for specific blocks of code etc.

Suzy drove to a hair appointment at 50mph. Her average speed on the return home was 40mph. The return home took 1/4hr longer because of heavy traffic. How far did she travel to her hair appointment?

Answers

Since Suzy return took 1/4 hr longer, how far Suzy travelled to her appointment is 50 mi

To answer the question, we need to know what distance travelled by Suzy is

Distance between Suzy's home and hair appointment

The distance between Suzy and her appointment is d = vt where

v = Suzy's speed = 50 mph and t = time it takes to teach her appointment.

So, d = 50t   (1)

Now, since Suzy returns home at a speed of v' = 40 mph and takes her 1/4 hr longer to return home,her return time is , t' = (t + 1/4) h

Since the distance she ruturns home is the same, we also have that

d = v't'

= 40(t + 1/4)  (2)

Equating (1) and (2), we have

50t = 40(t + 1/4)

50t = 40t + 10

50t - 40t = 10

10t = 10

t = 10/10

t = 1 hr

How far Suzy travelled to her appointment

Substituting t = 1 into d = 50t, we have

d = 50(1)

d = 50 m

So, how far Suzy travelled to her appointment is 50 mi

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