Emily called the post office to find out about the shipping tubes that she could buy there. The person helping her told her that the tubes had a surface area of 455.28 square inches and a radius of 4.2 inches. What is the height of the tube? A. 54.2 inches B. 50 inches C. 150 inches D. 100 inches

Answers

Answer 1
Final answer:

To find the height of the tube with a given surface area and radius, use the formula for the surface area of a cylinder and solve for height.

Explanation:

The surface area of a cylinder (A) is given by the formula:

A = 2πrh + 2πr²

Given: A = 455.28 in², r = 4.2 in

Substitute the values and rearrange the formula to solve for h:

455.28 = 2π(4.2)h + 2π(4.2)²

Calculate the height, h, to find the answer.

The height of the tube is B. 50 inches.


Related Questions

Marco went bowling and spent a total of $21. This included the shoe rental of $7. He bowled 4 games. How much did each game cost? A. $3.50 B. $3.66 C. $4.25 D. $7.00

Answers

The costs of each game was A. $3.50
$21 - $7\4 = $3.50

So first you do 21 - 7 because you don't want to count the shoe rental, and you get 14. Then, if he bowled 4 games, you'd divide 14 by 4 which is (1 ÷ 4 = 0
14 ÷ 4 = 3 (remainder 2)
20 ÷ 4 = 5)
3.5, which is A. $3.50

Which number has a terminating decimal expansion 2/7 ,2/11, 5/8

Answers

2/11 has a terminating decimal of .1818181818......

evaluate the expression, using the given value of the variable z÷3-5z+4 (z-2) when z=12

Answers

12/3-5(12)+4(12-2)
pemdass
12-2=10

12/3-5(12)+4(10)
divide or multiply
12/3=4
5(12)=60
4(10)=40

we now have
4-60+40
add
-16

Shafiq measured a piece of construction paper to be 6.75 inches wide by 8.25 inches long. What is the area of the piece of construction paper in square inches. Show your work.

Answers


Lenght x Width = area 
6.75x8.25=55.6875

rounded: 56 inches
55.68 square inches remember area is length times width so it would be 6.75 times 8.25

A van can travel 18 miles on each gallon of gasoline. At that rate, how many miles can the van travel on 15 gallons of gasoline?

A) 33 miles
B) 83 miles
C) 120 miles
D) 270 miles

Answers

they can travel D) 270 miles.

Answer:

D-270

Step-by-step explanation:

How many times greater is the product 4x300 than the product 4x30?

Answers

1200 and120
1200-120=1080
120 more than 1200 and also it mor than 4 × 30

5. Joe has a collection of 35 DVD movies. He received 8 of them as gifts. Joe bought the rest of his movies over 3 years. If he bought the same number of movies each year, how many movies did Joe buy last year?

Answers

How bought 27 movies last year
35 - 8 equals 27. So you would have to divide 27 with 3 because its over 3 years and last year is included in it. So 27 divided by 3 is 9.

He bought 9 movies last year!

The pineapple is seven times as heavy as an orange pineapple awesome where is 870 g more than orange what is the total weight in grams for the pineapple and

Answers

the answer is 6960 hope I helped!

Maggie bought 52 ounces of swordfish selling for $6.92 per pound. What was the total cost? And explain how u solved it

Answers

1 oz = 0.0625 lbs.....so 52 oz's is (52 x 0.0625) = 3.25 lbs

3.25 lbs at 6.92 per lb = (3.25 * 6.92) = $ 22.49 <==
Final answer:

To find the total cost of 52 ounces of swordfish at a price of $6.92 per pound, you need to convert the weight from ounces to pounds and then multiply it by the price per pound. The total cost is $22.51.

Explanation:

To find the total cost, you need to convert the weight of the swordfish from ounces to pounds and then multiply it by the price per pound. Here's how:

Convert 52 ounces to pounds: 52 ounces ÷ 16 ounces/pound = 3.25 poundsMultiply the weight in pounds by the price per pound: 3.25 pounds × $6.92/pound = $22.51

So, the total cost of 52 ounces of swordfish at a price of $6.92 per pound is $22.51.

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Compare and contrast the methods you can use to multiply a whole number and a decimal

Answers

Whether treating the decimal as a whole number or converting it to a fraction, the key lies in preserving the accuracy of the product while considering decimal positions.

Multiplying a whole number by a decimal involves different methods, with the primary goal of determining the product accurately. One method is to treat the decimal as a whole number, ignoring its decimal point initially.

Multiply the whole number as usual, and then consider the decimal point's position in the result. The number of decimal places in the product is equal to the sum of the decimal places in the factors.

Alternatively, one can convert the decimal to a fraction before multiplication. This involves expressing the decimal as a fraction with the denominator being a power of 10.

Afterward, multiply the whole number by the numerator and simplify the fraction if necessary. Both methods yield the same result but may be more intuitive for different individuals. The key is to maintain awareness of decimal positions and convert between decimal and fractional forms as needed.

If a fraction is greater than 1, what do you know about its reciprocal

Answers

It will be less than one.
you will know it is less than one for exsaple 5/3=3/5 or 2/1=1/2

if there are 15 cats in the apartment complex how many dogs are there

Answers

How many total pets are there. Or what is the ratio?

Answer:


Step-by-step explanation:


To find the area of a ____ multiply half the sum of the bases by the height

Answers

to find the area of a triangle multiply half the sum of the bases by its height, i think?

Answer:

trapezoid

.

Step-by-step explanation:

A student recorded the following plant measurements: 2.31 inches, 3.22 inches, and 3.35 inches. What are the total measurements recorded?
A) 9 inches
B) 8.88 inches
C) 8.9 inches
D) 8.880 inches

Answers

This is a simple addition problem. 
the equation is 2.31+3.22+3.35=x
to break it down:
2.31+3.22=5.53
5.53+3.35=8.88
x=8.88
That is your answer. 
Hope this helps. 

What is the solution to this system of equations?
  x − 2y = 15
2x + 4y = -18

Please explain! the sooner the better

Answers

first for the first equation x = 2y +15
Substitute x in the second equation
2( 2y + 15) + 4 y = +18
4y + 30 + 4 y = -18
8y + 30 = -18
8y = -18 -30
8y = -48
y = -6

Substitute in first equation x -2(-6) = 15
x +12 = 15
x = 15 - 12
x = 3
so the solution is (3, -6)
2( 2y + 15) + 4 y = +18
4y + 30 + 4 y = -18
8y + 30 = -18
8y = -18 -30
8y = -48
y = -6

x +12 = 15
x = 15 - 12
x = 3
Final answer= (3, -6)

suppose u= {3,6,9,12,15,18,21} is the universal set and M={3,9,15,21} what is M?

Answers

12 and 18 maybe. I'm not sure but I think this is it because those numbers are missing from M's sequence
. I might be wrong. Just guessing

least common denomaitor of 1/3 and 1/5

Answers

pretty sure it'd be 15
Find the LCM (Least Common Multiple) of the denominators in order to find the LCD (Least Common Denominator) 
The LCD would be 15. 

Can anyone answer all the ones left, plz show work❤️

Answers

I noticed that some of your answers were wrong so I answered and corrected all of it. Hope my answer helps you.

15. 268

16. 94 R 114

17. 209

18. 246 R 211

19. 86 R 39

20. 908

21. 587

22. 1494 R 41

23. Emilio will have at least 67 full rows of trees. I know because if you divide the number of trees by the trees he planted per row, we'll get the total number of rows.

24. Camilla can make 96 necklaces.
Solution: (8,160 + 2,880) divided by (85 + 30) = 96.

25. 69 people received a free admission over the two days.
Solution: (6,742 + 5,487) divided by 175 = 69.

26. The divisors 2,000, 200, and 20 are all similar except the number of zeros. You can remove a zero from each dividend equal to the number of zeros in the divisor. The smaller the divisor, the greater the quotient when dividing the same number (80,000).

27. When a zero was added to the dividend, a zero was also added to 17.
Solution: 9,554 ÷ 562 = 17.
95,540 ÷ 562 = 170.

28. 111 moons could be lined up in a row between Earth and the Moon.
Solution: 384,400 ÷ 3476 = 110.587.
The number is 5 so I rounded it up.
If the number is 4 and below, I wouldn't round it up.

The solution for 15-19 is below. They're all in order.

Just awser number 4 for me please

Answers

Answer:

7800

Step-by-step explanation:

7782

The 2 is in the ones place.

The 8 is in the tens place.

The 7 at right is in the hundreds place.

The 7 at left is in the thousands place.

We need to round to the hundreds place, so the digits to the right of the hundreds place become zeros.

That means we write this:

7700

Now we look at the leftmost digit we dropped. It was the 8. Since 8 is from 5 to 9, the digit to its left goes up one. The 7 becomes 8.

We get this:

7800

Answer: 7800

what is 602,107 in word form

Answers

Six hundred two thousand one hundred and seven.
six hundred two thousand, one hundred seven.

Hope this helped! :)

A box contains n quarters and some dimes. The ratio of quarters to dimes is 1:2.
A) Write an expression for the total amount of money in the box.

B) If there are 12 quarters, find the total amount of money in the box.

Answers

A. 25(x)+20(x)



B. 25(12)+20(12) 
3.00+2.40
$5.40 in total

The expression is 0.25Q + 0.1D dollars for the total amount of money in the box, where Q is quarters and D is a dime. The total amount of money in the box would be $5.40.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

A) Let Q be the number of quarters and D be the number of dimes in the box. We are given that the ratio of quarters to dimes is 1:2, which can be expressed as Q:D = 1:2. Since the ratio is equal, the fraction Q/D is equal to 1/2. We can write this relationship as:

Q/D = 1/2

To find the total amount of money in the box, we need to add the value of all the quarters and dimes. The value of all the quarters is 0.25 x Q dollars and the value of all the dimes is 0.1 x D dollars. The total amount of money in the box is, therefore:

0.25Q + 0.1D dollars

B) If there are 12 quarters in the box, we can plug this value into the expression from part A to find the total amount of money in the box:

0.25 x 12 + 0.1 x D = 3 + 0.1 x D dollars

Since we don't know the value of D, we cannot simplify this expression any further. However, we can use this expression to find the total amount of money in the box for any given value of D. For example, if there are 24 dimes in the box (2 times the number of quarters), the total amount of money in the box would be:

0.25 x 12 + 0.1 x 24 = 3 + 2.4 = $5.40.

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Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on. Write the numbers for the first eight beads that are white. What is a rule for the pattern?

Answers

For the first 8 beads the answer is 1,1,1,1,1,1,1,1. The rule for this pattern is first you start at one and then go onto 3 and repeat.

what is 21.7 divided by 3.5

Answers

21.7÷3.5 is 6.2 hoped it helped
21.7 divided by 3.5 is 6.2

Write an expression for the calculation divide 15 into thirds and subtract from 14 divided in half.

Answers

14 into 15 and then subtract

Calculeaza a-b+c stiind ca a-1538=b+718=2000-c=1074

Answers

a-1538=1074
a=1538+1074
a=2612




b+718=1074
b=1074-718
b=356



2000-c=1074
c=2000-1074
c=926


2612-356+926=3182

The median number of goals scored by 7 players in a certain soccer season is 5. The range of the number of goals scored by those players that season is 4.
Determine if the following statement is true, is false, or does not contain enough information.
At least one player scored exactly 5 goals.

True
False
Not enough

Answers

The statement is true for At least one player scored exactly 5 goals.

What are median?

Median represents the middle value of the given data when arranged in a particular order.

We have been given median number of goals scored by 7 players in a certain soccer season is 5.

We need to determine if the following statement is true, is false, or does not contain enough information, At least one player scored exactly 5 goals.

The range of a set of data is the difference between the largest value and the smallest value.

The range of the number of goals scored by those players that season is 4.

So, The statement is true for At least one player scored exactly 5 goals.

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Creat a word problem that uses multiplication of money. Draw a bar model to help you write equations to solve the problem.

Answers

Penny works at a pizza shop. She makes $10 an hour. How much money does she make in 3 hours?
P.S. answer is $30
Final answer:

We created a word problem involving Sarah saving $6 each week to buy $24 art supplies, showing the multiplication equation $6 x W = $24, and used a bar model to find that Sarah needs to save for 4 weeks.

Explanation:

Let's create a word problem that involves the multiplication of money and use a bar model to solve it. Imagine that a girl named Sarah is saving up to buy a special set of art supplies that costs $24. She decides to save $6 every week from her allowance. To find out how many weeks she needs to save in order to buy the art supplies, we can set up an equation using multiplication: 6 (number of dollars saved per week) x W (number of weeks) = 24 (total cost of the art supplies).

Using a bar model, we can represent the total cost as a long bar divided into smaller equal parts, each part representing $6. Counting the number of parts that add up to $24 will give us the number of weeks Sarah needs to save. This model visually supports our equation and helps us solve for W. In this case, W equals 4 because 6 dollars times 4 weeks equals the 24 dollars needed for the art supplies.

A pound of beans costs $4.70. Mrs. Patel buys 6.5 pounds of beans. How much dose she pay for the beans ?

Answers

$30.55
-----------------------------------------
4.70
x 6.5
_____
2350
28200
_______
30.550
4.70            
x    6 ( lbs)
28.20

4.70 divided by 2 is 2.35

28.20 +2.35 = 30.55




What is the first thing you need to do to add 1/9 + 5/6?

A) Add the numberators
B) Add the denominators
C) Find the lest common denominator.
D) Multiply the numerators by the denominators.

Answers

c) find the least common denominators
c)Find the least common denominators which is basically multiplying the two bottom denominators

A sixth grader weighs 90 pounds, which is 120% of what he weighed in fourth grade. How much did he weigh in fourth grade?

Answers

90=1.2f
(f stands for how much he weighed in fourth grade)
(1.2 is 120%, because % stands for divided by 100)

So, divide by 1.2 on both sides.
75 pounds.

Answer:75

Step-by-step explanation:

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