A sphere has a diameter of 8 inches what is the correct way to calculate the volume of the sphere?
A .V= 2/3(pi sign ) (4)3
B. V = 4/3(pi sign ) (8)3
C. V=2/3(pi sign ) (8)3
D. V= 4/3(pi sign ) (4)3
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Related Questions
I need help pleaseee
Answers
Answer:(0,7)(1,42/5)
Step-by-step explanation:
Put one dot on (0,7), the other on (1,42/5)
please help
Which number is an integer but not a whole number? Select all that apply.
-4
-5
0
6
Answers
Answer:
-5
Step-by-step explanation:
-5 is not a whole number nor a natural number. But it is an integer.
Answer:
-4 and -5
Step-by-step explanation:
Negative numbers are integers but not whole numbers. Whole numbers are integers and whole numbers.
Drag each situation to show whether it can be modeled using a linear or an exponential function. If the situation cannot be modeled with either function type, drag it into the container labeled Neither.
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Answer:
Step-by-step explanation:
A). An investment account earns 2.8% simple interest.
Since investment amount increases every year linearly, therefore, the modeled situation represents a LINEAR FUNCTION.
B). The price of a stock varies by 2.8% each week.
Since price of the stock may increase or decrease every week, therefore, this situation can't be modeled by any function.
Therefore, the answer is NEITHER.
C). An investment account earns 2.8% compound interest, compounded monthly.
Formula to get the value of the final amount in the account is,
Final value = Initial value × [tex](1+\frac{.028}{100})^t[/tex]
Here 't' = Duration of investment
It's an EXPONENTIAL FUNCTION.
Please help me ASAP will mark best answer brainliest
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Answer:
4.) Silvia had the greater variation in her race results for the season because she has a higher standard deviation.
Step-by-step explanation:
hope this helps!!! :)
Convert radians to degrees. \frac{13\pi}{18}
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Answer:
Step-by-step explanation:
sorry can’t answer
1. Jayden spent $46.20 on 12 gallons of gasoline. What was the price per gallon?
2. Jayla buys 1.2 pounds of bananas. The bananas cost $1.29 per pound. To the nearest cent, how much does Jayla pay for the bananas?
3.Billy ate 1/4 of a pizza, and Wi ate 1/3 of the same pizza. How much of the Pizza did they eat in all?
plz show the work
Answers
Answer: 1. $3.85
2. $1.55
3. 7/12
Step-by-step explanation:
1. Since you are finding out price PER gallon, you would divide $46.20 by 12 because Jayden bought 12 gallons.
2. Since they give you the price per gallon and the amount bought in this problem, you will multiply 1.2 and $1.29. Think of this as if you were buying 5 apples and each cost $1, you would do 5 x 1 to find the total cost. The same concept applies here.
3. To add 1/4 and 1/3 you would find a common denominator. The common denominator would be 12. 1/4 = 3/12 and 1/3 = 4/12. Now you can add them together, 3/12 + 4/12 = 7/12
A restaurant owner is replacing the restaurant’s bathroom floor with square tiles. The tiles will be laid side-by-side to cover the entire bathroom with no gaps, and none of the tiles can be cut. The floor is a rectangle that measures 24 feet by 18 feet.
a.What is the largest possible tile size she could use? Write the side length in feet. Explain how you know it’s the largest possible tile.
b.How many of these largest size tiles are needed?
c.Name more tile sizes that are whole number of feet that she could use to cover the bathroom floor. Write the side lengths (in feet) of the square tiles.
Answers
Answer: A. 9x9 tiles are the biggest ones that she can use. B. 48 C. Examples are: 8x8, 6x6, 4x4, 3x3, 2x2, and 1x1 ft
Step-by-step explanation: If the area is 432 ft. then you would have to find the tiles that can be put in there but can also be equally divided by the number.
The number of tiles will be 108. And the largest possible tile size she could use will be 2 feet.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
A restaurant owner is replacing the restaurant’s bathroom floor with square tiles.
The tiles will be laid side-by-side to cover the entire bathroom with no gaps, and none of the tiles can be cut.
The floor is a rectangle that measures 24 feet by 18 feet.
Then the area of the bathroom will be
Area = 24 x 18
Area = 432 square feet
Let n be the number of tiles and a be the side length of the square tile.
na² = 432
If a = 1, Then the number of tiles will be
n = 432
If a = 2, Then the number of tiles will be
n x 2² = 432
n x 4 = 432
n = 108
The number of tiles will be 108. And the largest possible tile size she could use will be 2 feet.
More about the geometry link is given below.
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Miguel has to take two quizzes tomorrow. He has only enough time to study
for one of them.
• The history quiz has 4 true-or-false questions.
• The science quiz has 3 multiple-choice questions.
Miguel calculates the probability that he will get all the questions correct by
guessing.
To get 100% correct:
P(guess is correct)
History
Answer 4 of 4 correctly.
0.5
Science
Answer 3 of 3 correctly.
0.2
Miguel will study for the quiz on which he is likely to do worse by guessing.
Which quiz should he study for?
O
A. History, because he must get more questions correct.
B. Science,
C.History,
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Answer:
Option B is correct.
Miguel should study for the Science quiz as he will do worse in that quiz by guessing.
Step-by-step explanation:
Miguel has to take two quizzes
1) 4 true or false questions on History with a 0.5 chance of acing the quiz
Expected number of correct questions = np
n = number of questions
p = probability of acing the test
Expected number of correct questions = 4 × 0.5 = 2
2) 3 multiple choice questions on Science with a 0.2 chance of acing the quiz.
Expected number of correct questions = 0.2 × 3 = 0.6
It is evident that guessing would yield a worse result in the Science quiz with less than 1 question expected to be correct than history, where he is still expected to get 2 questions correctly by guessing.
Hope this Helps!!!
Answer:c
Step-by-step explanation:
Find the measure of the given arc in Circle C.
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Answer:
AE=90°
AED=140°
DBA=220°
i need help thanks fvbfuvfubvufvfv
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Hope this helps!
What is the surface area of the cylinder with height 5 m and radius 8 m?
Round your answer to the nearest thousandth.
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Answer: 653.45m²
I got it right thats why
Sabrina has a rug with a perimeter of 18 feet. She decides to place a border around the rug so that the new length of the rug is 8 feet and the width is 4 feet. The border is the same width all the way around. A rectangle has a length of 8 feet and width of 4 feet. The equation which represents x, the width of the border is 2 (8 minus 2 x) + 2 (4 minus 2 x) = 18. What is the width of the border? Three-fourths ft 1 and one-half ft 1 ft 3 ft
Answers
Answer:
3/4 ft.
Step-by-step explanation:
2(8-2x)+2(4-2x)=18
16-4x+8-4x=18
-8x=18-24
-8x=-6
x=-6/-8
x= 3/4
The width of the border is 3/4.
What is perimeter of rectangle?The perimeter of rectangle is, P= 2(l + b).
Given:
length= 8 feet, width = 4 feet
2(8-2x)+2(4-2x)=18
16-4x+8-4x=18
-8x=18-24
-8x=-6
x=-6/-8
x= 3/4
Hence, the width of the border is 3/4.
Learn more about this concept here:
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A plant can manufacture 100 golf clubs per day for a total daily cost of $7,800 and 120 golf clubs per day for a total daily cost of $8,400. Assuming that the daily cost and production are linearly related, find the number of golf clubs manufactured if the total daily cost is $12,300. * A. 167 B. 250 C. 410 D. 4,800
Answers
Answer:
The correct option is (B) 250.
Step-by-step explanation:
A plant can manufacture 100 golf clubs per day for a total daily cost of $7,800.
And 120 golf clubs per day for a total daily cost of $8,400.
Let X = number of golf clubs manufactured per day.
Let Y = total cost of manufacturing golf clubs per day
It is provided that:
(x₁, y₁) = (100, 7800)
(x₂, y₂) = (120, 8400)
Form the least square regression line using two-point form as follows:
[tex](y-y_{1})=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\ (x-x_{1})[/tex]
[tex](y-7800)=\frac{8400-7800}{120-100}\ (x-100)\\\\(y-7800)=30\times (x-100)\\\\y-7800=30x-3000\\\\y=30x+4800[/tex]
The least square regression line to estimate the total daily cost of x golf clubs manufactured daily is:
y = 30 x + 4800
Compute the number of golf clubs manufactured if the total daily cost is $12,300 as follows:
[tex]y = 30 x + 4800\\12300=30x+4800\\30x=7500\\x=250[/tex]
Thus, the correct option is (B).
Solve for a.
a + (-4) = -13
What is the answer ?
A. a = -17
B. a = -9
C. a = 9
D. a = 17
Answers
Answer:
the answer is B
Step-by-step explanation:
Answer:
-9
Step-by-step explanation:
It is B (-9) because when you have a negative number and answer in an equation like this, all you have to do is add another negative number to get that answer. -9 + -4 = -13
The point (-1,10) lies in which quadrant
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Answer:
the second quadrant.
Step-by-step explanation:
Answer:
Look up a grid and find out. If you don’t know how to number them search that up too and tell you teacher he or she or they are failing you
Step-by-step explanation:
Ahah lol
The volume of this square pyramid is 200in^3. Find the value of x.
Answers
Answer:
x = 5 in.
Step-by-step explanation:
Volume = 1/3 * area of the base * height
200 = 1/3 * 8*15 * x
200 = 40x
x = 5 in.
What is the probability of rolling a die 6 times and getting the numbers 1, 2, 3, 4, 5, 6 in that order? Select the best answer from the choices provided.
A. 0.001389
B. 0.000129
C. 0.000021
D. 0.0000038
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Answer:
C. 0.000021
Step-by-step explanation:
Each roll of the die is an independent event.
The probability of rolling a 1, then a 2, then a 3, then a 4, then a 5, then a 6 is the product of the 6 individual probabilities.
Probability of rolling a 1:
There are 6 possible outcomes, rolling 1, 2, 3, 4, 5, or 6.
There is one desired outcome, rolling a 1.
p(1) = 1/6
Probability of rolling a 2:
Similar to rolling a 1, there is 1 desired outcome,rolling a 2, out of 6 possible outcomes.
p(2) = 1/6
The same is true for rolling a 3, 4, 5, or 6. Each one has a probability of 1/6.
p(1, 2, 3, 4, 5, 6, in that order) = p(1) * p(2) * p(3) * p(4) * p(5) * p(6)
= (1/6)^6
= 1/6 * 1/6 * 1/6 * 1/6 * 1/6 * 1/6
= 1/46,656
= 0.000021433
Answer: C. 0.000021
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Answers
Answer:
[tex]2\dfrac{1}{4}[/tex]
Step-by-step explanation:
[tex]-5\dfrac{1}{4}-(-7\dfrac{1}{2})=[/tex]
[tex]-5\dfrac{1}{4}+7\dfrac{2}{4}=[/tex]
[tex]2\dfrac{1}{4}[/tex]
Hope this helps!
Find the measure of angle U
Answers
Answer:
30
Step-by-step explanation:
i promise this is the answer i go to k12 and got the answer correct
What is the area of one of the triangular faces?
4 in
3 in
7 in
7 in
5 in
4 in
5 in
Answers
Answer:6
Step-by-step explanation:
I got it corrected on the assignment
Answer:
it is 6
Step-by-step explanation:
the person above me is right :) have a nice day
(◍•ᴗ•◍)✧*。
After analyzing this number line, which set of numbers would all round to 0 when rounding to the nearest hundred?
A) 15, 35, 44
B) 35, 44, 50
C) 44, 50, 55
D) 55, 63, 69
HELP ASAP I WILL GIVE BRAINLIEST
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Answer:
the numbers in Set A would round to 0
Step-by-step explanation:
What type of graph does not show the mean?
Answers
The misleading one or the one that miss out information.
"Mean" Means the middle number of the total number. Like add all the number in the graph and divide by 2
Answer:
A bar graph.
Step-by-step explanation:
Because a bar graph is a chart used to represent data visually using bars of different heights or lengths.
In Triangle PQR, the measure of R=90°, RP=57 feet, and QR = 93 feet. Find the measure of P to the nearest tenth of a degree.
Answers
Answer:
58.5
Step-by-step explanation:
Answer:
58.5
Step-by-step explanation:
SOLVED
its 160
The table shows the number of mobile cellular subscriptions per 100 people in Australia for different years.
Year | Cellular subscriptions / 100 people
1993 | 4 12 25 33 57 72 90 101 101 108
1995 | 12
1997 | 25
1999 | 33
2001 | 57
2003 | 72
2005 | 90
2007 | 101
2009 | 101
2011 | 108
The quadratic regression equation using the years since 1990 for the input variable and the number of cellular subscriptions for the output variable is y=−0.107x^2+9.008x−28.851
What is the predicted number of cellular subscriptions per 100 people in Australia in 2030?
Round your answer to the nearest whole number. Enter your answer in the box.
Nvm its 160
Answers
Answer:
160
Step-by-step explanation:
x represents the years since 1990, so at 2030, x = 2030 - 1990 = 40. Replacing this value into the quadratic regression equation, we get:
y = -0.107(40)^2 + 9.008(40) - 28.851 = 160
which is the predicted number of cellular subscriptions per 100 people in Australia in 2030
Two triangular faces of a rectangular pyramid each have an area of 7.8 cm2 and the other two faces each have an area of 16.5 cm2. If the area of the base is 60 cm2, what is the total surface area of the pyramid? 84.3 cm2 108.6 cm2 157.2 cm2 168.6 cm2
Answers
The total surface area of the rectangular pyramid is the sum of the whole area. Therefore, the total surface area is 108. 6cm²
How to find the surface area of a pyramid?
The surface area of the rectangular pyramid is the sum of the whole areas.
The total surface area is the sum of the whole area.
A rectangular pyramid has 4 triangular faces and a rectangular base.
Therefore,
total surface area = 7.8 cm² + 7.8 cm² + 16.5 cm² + 16.5 cm² + 60 cm²
total surface area = 108.6 cm²
Therefore, the total surface area of the rectangular prism is 108. 6cm²
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My teacher will give me a f if I don’t do this can somebody help me
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Answer:
good luck
have a good day - be safe - and healthy too
Sorry if its blurry im on my laptop
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Answer:
Step-by-step explanation:
1 in=2 ft
Bedroom 1
scale
17.5 in ×12.5in
actual
(17.5×2)×(12.5×2)
or
35 ft×25 ft
Living Room
scale
17.5 in×17.5 in
actual
35 ft×35 ft
Bathroom 1
scale
12.5 in×12.5 in
actual
25 ft×25 ft
Kitchen
scale
17.5 in ×12.5 in
actual
35 ft×35 ft
Bedroom2
scale
12.5 in ×12.5 in
actual
25 ft×25 ft
Entryway
scale
12.5 in×12.5 in
actual
25 ft×25 ft
Bathroom 2
scale
12.5 in×5 in
actual
25 ft×10 ft
The graphed system represents the rate at which two trucks are being filled, where x represents the time in minutes and y represents the percentage filled. Which statement is true? A. The solution is nonviable because the percentage filled cannot be negative. B. The solution is nonviable because the time cannot be negative. C. The solution is nonviable because the time cannot be partial minutes. D. The solution is viable.
Answers
Answer:
D?
Step-by-step explanation:
The true statement is ;B. The solution is nonviable because the time cannot be negative.
How to know if a point lies in the graph of a function?All the points (and only those points) which lie on the graph of the function satisfy its equation.
Thus, if a point lies on the graph of a function, then it must also satisfy the function.
We have been given that the graphed system represents the rate at which two trucks are being filled.
where x represents the time in minutes and y represents the percentage filled.
When both the line are parallel and not coincident, then that system of linear equations have no solutions as there is no common point on both line.
The true statement is ;B. The solution is nonviable because the time cannot be negative.
Learn more about points lying on graph of a function here:
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I need help with this please, I’m not sure if I should use the a^2+b^2=c^2
Answers
Answer:
yes, use the Pythagorean theorem
Step-by-step explanation:
it would be 6^2+15^2=c^2
!! NEED RN, MARKING BRAINLIST !!
What is the value of x?
Answers
Answer:
5 sqrt(3)
Step-by-step explanation:
Since this is a right triangle
sin theta = opposite side/ hypotenuse
sin 60 = x /10
10 sin 60 = x
10 sqrt(3) /2 =x
5 sqrt(3) =x
Answer:
5√3
Step-by-step explanation:
The sine function ties together the information at hypotenuse = 10, opposite side = x and angle of elevation = 60 degrees:
sin 60 degrees = opp side / hypotenuse = x/10.
Therefore, x = 10 sin 60 degrees = √3/2, and so x = 10√3/2 = 5√3 (equal to the third answer choice).
