The answer is C.
Here is the formula for volume of cone:
[tex]\frac{1}{3} \pi r^{2} h[/tex]
where r is the radius and h is the height.
[tex]\pi r^{2}[/tex] is the area of the "base" or the fomula for calculating the area of a circle.
In your question, the height is given, but you don't know the radius. However, it could be found using the circumference of 8.4pi cm.
The formula for the relationship between circumference, diameter, and the constant pi:
[tex]C =\pi d[/tex]
where C is the circumference and d is the diameter of the circle.
Substitute the numbers in:
[tex]8.4 \pi = \pi d[/tex]
Remove [tex]\pi[/tex] from both sides of the equation:
[tex]d=8.4[/tex]
Diameter is the length across the circle, while radius is half of diameter.
Hence, [tex]r =4.2[/tex]
Now that you have all the "information" you need to calculate the cone's volume, substitute the numbers into the formula:
[tex]\frac{1}{3} \pi * 4.2^{2}* 14[/tex]
You should get [tex]82.32\pi cm^{2}[/tex] as your answer. The [tex]\pi[/tex] is left alone because the question stated "in terms of pi", but if that weren't stated pi should be replaced with 22/7 or 3.14 depending on the question.
I hope this clears up any confusion you might have! If not, feel free to leave a comment with your question.
Answer the questions and provide an explanation (if needed).
Answer:
1. 0 2. 130 3. -9.9
Step-by-step explanation:
Don't do for points.
Don't get your account banned.
Don't be me
Aisha measures the length of a sheet of paper and finds that it is 29 cm long. The label on the package indicates that the paper length is 32 cm. Calculate the percentage error in the measurement.
Answer:
just do the step by step and you'll probably get it because it's quite simple but hard for me to explain so just read this!
Step-by-step explanation:
In making any measurement, the chances are that our results will not be absolutely accurate. We can often compare our results with some standard or accepted value to see how closely they agree. But how much error can be allowed before the result becomes meaningless?
As you may guess, the amount of error that is acceptable varies with the situation. Suppose you measure the distance on a map between your Scarsdale and Mamaroneck and you get a result of 5 miles. If the actual distance is 5 1/2 miles, the chances are this error will have no effect on the trip between the two towns. But if the same degree of error existed in the calculations used to send astronauts to the moon, those people would be in big trouble!
Percentage Error = measured value - accepted value x 100%
accepted value
Suppose, you measured the length of a table and obtained a measurement of 202 cm. A friend also measures the table and obtains a result of 198 cm. To calculate the percentage error in each of the measurements, you need to know the "correct' or “accepted value” of the length of the table. After consulting the manufacturer’s catalog, you find that the table's length is listed as 200 cm in length. This will be used as the accepted value in our calculation.
The calculations of percentage error for the two measurements are shown below. Both measurements show an error of 1%. Your friend has made a measurement which is on the low side of the accepted value and is therefore, negative. You, on the other hand, have made an error on the high side of the accepted value and it is positive.
I dont know the answer but I hope this helped!
(sorry for the inconvenience)
State how many solutions each equation has. (Will mark brainlest)
2z - 6 = 2(z + 2) - 10
Answer:
There no solution or 0
The equation x · y = z could be true or false.
If X is 3, Y is 4, and Z is 12 is the equation true or false?
Find new values of X, Y, and Z that make the equation true.
Find new values of X, Y, and Z that make the equation false
Answer: TRUE
Step-by-step explanation:
3 x 4 = 12.
Which equation can be used to solve the problem?
75 percent of what number is 150?
StartFraction 75 times 1 Over 150 times 1 EndFraction = StartFraction 75 Over 150 EndFraction
StartFraction 150 times 2 Over 75 times 2 EndFraction = StartFraction 300 Over 150 EndFraction
StartFraction 200 times 2 Over 75 times 2 EndFraction = StartFraction 400 Over 150 EndFraction
StartFraction 75 times 2 Over 100 times 2 EndFraction = StartFraction 150 Over 200 EndFraction
Answer:
200
Step-by-step explanation:
multiplying both sides by 100 and dividing both sides by 75, we have
X = 150 x 100/75
X = 200
There are 120 seventh graders at Danielle's school. Each day, the students have the option of eating outside or in the lunch room. Danielle decided to keep track of how many students eat outside each day. After recording her results for the whole school year, she has displayed the data for each month in a box-and-whisker plot. Below are her plots for the months of September and April.
-Fill in the blank-
The____number of students that ate outside in
mode, mean, median
April is approximately___
25, 10, 15 ,20
___Than the
greater, less
____number of students that ate outside in September.
median, mode, mean
There is more variability in the plot representing_____.
April, September
There is ____overlap in the two data sets.
much, some, no
Answer:
mean, 15, less, median, april, much
Step-by-step explanation:
Answer:
mean
15
less
median
april
much
Step-by-step explanation:
give the other brainly :)
A rectangular cardboard has dimensions as shown. The length of the cardboard can be found by dividing its area by its width. What is the length of the cardboard in inches?
Area = 36 3/4
Width = 4 1/2
Length = ?????
Hi! I need some help, and this is due really soon! If you could answer any one of these, it would be real swell. Anyone can answer as long as there's an explanation. ( I know these might be easy for you guys but I'm having a lot of trouble) Thank you! Have a nice day :)
Answer:
6
Step-by-step explanation:
first let's find all the possible combinations excluding 6+6 to get 12 using addition, we exclude 6+6 because we can't have the same integer for different variables. these are 0+12, 1+11, 2+10, 3+9, 4+8, and 5+7(also the other way around but i start with these). using common sense, I started higher because there is no way d = 0 and e= 12, so i went from 5+7 down. through trial and error and some luck, 5+7 was the correct combination. let's insert the numbers with their variables. d = 5 and e = 7. now we figure out, what minus 5 is 7? if you learned fact families in kindergarten, you'd know to find this out you add 5+7, which is 12. now we divide 12 by 2, because it's the same number added together to get this number, so you now get 6+6. does the equation make sense? (6+6) - 5 = 7, that checks out, and 5+7=12.
MK SO WHAT...
write a list of steps that are needed to find the measure of ∠B.
it’s subtraction, so you must subratct 113 by 72, then your answer will be B= 41
Find the perimeter of the figure.
Answer:
62cm
Step-by-step explanation:
Just add all the side together like this:
13+15+10+10+14=62
Glad I could help! Also could I have brainlist?
Which expression is the best estimate of 5 7/8−3 2/15?
Answer:
C 6-3.
Step-by-step explanation:
5 78 is close to 6
3 2/15 is close to 3
pls help due today or ill fail
Answer: Ok so I may be wrong but I got 84ft
Step-by-step explanation: The bottom looks like a rectangle so it would be 4 times 12. 4 times 12 equals 48. since the height is 4 it would be 10-4 which equals 6. 6 Times 12 divided by two equals 36. 36 plus 48 is 84.
Terry is making meatballs for a family dinner. He needs ground turkey and ground beef to make the meatballs.
Ground turkey costs $4.50 per pound. Terry buys 2.6 pounds of ground turkey.
1. What is the total cost, in dollars, for 2.6 pounds of ground turkey? Show or explain how you got your answer.
It costs $3.45 to buy 1/2 lb. of chopped walnuts. How much would it cost to purchase 7 lbs. of walnuts?
please hurry guys qwqwqwqwq
Answer:
3.45/0.5= 6.9
6.9*7=48.3
Step-by-step explanation:
A number cube labeled 1–6 is rolled and a letter is selected from the word MATH. Determine the probability. Write it as a fraction in simplest form.
Answer:
1/4
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
got it right on test
Instead of buying 3 white t-shirts for Bobby she purchased 5. How much was each shirt if the Gap sold them at 3 for $49.95. What does each shirt cost?
Answer:
The answer should be 16.65.
I NEED HELP. WILL GIVE BRAINLIEST !!
Answer:
The answer is the third option and the last option
Step-by-step explanation:
This is because these are the only two answers you will need to use proportional relationships on. Need to find the y. Did this help? If so, it would be nice to have brainliest.
I WILL GIVE THE BRAINLIEST TO WHOEVER SOLVES WRITES THIS OUT (DO NOT SOLVE)
The quotient of a number decreased by 7 and -2 is -10.
Step-by-step explanation:
First, a quotient is the answer to a division equation.
So its like y÷z=x
X is our quotient.
Since x is -10 when decreased by 7 and -2, we can write:
x-7-(-2)=-10
x-7+2=10
x-5=10
x=15
We now know that x is 15.
Using that, we can write out our equation.
Since you say do not solve, i have purposefully NOT solved this.
You should use y as a dividend and z as a divisor!
Good luck.
i need this answer asappppp
You are adding 6¾ + 3 2/3 using fraction strips. Explain how you rename the
fraction part of the sum.
Multiplying to make the same in a different like 3/5x5/5 = 3/5
Which is the same as 3/5
Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently.
Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300.
Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn.
Salesman C does not earn any commission. His weekly salary is $900.
The weekly paycheck amount for each salesman, p, is a function of the number of sales, s, they had in that week.
Salesman A Salesman B Salesman C
s = 0 (0,
) (0,
) (0,
)
s = 1 (1,
) (1,
) (1,
)
s 10 (10,
) (10,
) (10,
)
Answer:
12 sales
Step-by-step explanation:
Let x represent the number of sales each man had.
For Salesman A, he earns $65 per sale; this is 65x.
For Salesman B, he earns $40 per sale; this is 40x. We also add to this his weekly salary of $300; this gives us 40x+300.
Since their pay was equal, set the two expressions equal:
65x = 40x+300
Subtract 40x from each side:
65x-40x = 40x+300-40x
25x = 300
Divide both sides by 25:
25x/25 = 300/25
x = 12
BRAINLIEST INCLUDED! The cost of a pair of boots was $40. They now cost $25. Determine the percent of decrease. Enter your response with an explanation of your process.
Answer:
37.5 percent
Step-by-step explanation:
First, work out the difference (decrease) between the two numbers you are comparing(which is 15 in this case) . Next, divide the decrease by the original number and multiply the answer by 100.(15/40=0.375 times 100=37.5) If the answer is a negative number, this is a percentage increase
PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY
Answer:
B I finished that test and got an 100
Help me please. This is due at 12 tonight
!!!!!!!HELP PLS!!!!!!
______________________________
1.) Divide both sides by 3:[tex]3[/tex] ÷ [tex]3=[/tex] Cancels Out[tex]12[/tex] ÷ [tex]3=4[/tex]2.) Subtract 2 from both sides:[tex]2-2=[/tex] Cancels Out[tex]4-2=2[/tex]
So your answer is [tex]\bold{x=2}[/tex].
______________________________
I need help with the red answer
Answer:not sure if I’m right but I think it’s 25 out of 25
Step-by-step explanation: 0.24 times 25/25 = 24 I’m pretty sure, hope it helps
Find the slope of the line that passes through the points (-1, -3) and (-9, 7).
What is the area of this triangle in the coordinate plane?
Answer:
6 units
Step-by-step explanation:
Step-by-step explanation:
area of triangle = 1/2 × 4 × 3 = 6 units .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
A laptop has a listed price of $892.99 before tax. If the sales tax rate is 8.75%, find the total cost of the laptop wi the sales tax included. Round your answer to the nearest cent, as necessary
