IF CORRECT ILL MARK BRAINLIEST
FIND THE SURFACE AREA OF THE CYLINDER

IF CORRECT ILL MARK BRAINLIESTFIND THE SURFACE AREA OF THE CYLINDER

Answers

Answer 1

Answer:   A≈1015.4

Step-by-step explanation:

A=2πrh+2πr2=2·π·8·12.2+2·π·82≈1015.36275

Answer 2

Answer:

407 mm²

Step-by-step explanation:

The formula for the surface area of a clyinder is: A = 2[tex]\pi[/tex]r · (r + h)

Plugging in the given values, we have: A = 2[tex]\pi[/tex]4 · (4 + 12.2)

A = 2[tex]\pi[/tex]4 · (4 + 12.2)

A = 2[tex]\pi[/tex]4 · 16.2

A = 2(3.14)4 · 16.2

A = 406.944

A = 407 (rounded)

hope this helps!


Related Questions

Need help with this I’d really appreciate it

Answers

Ben not right because Ben no

Write 28 as a product of its prime factors.
Write the factors from smallest to biggest.

Answers

Answer:

2^2 × 7

hope this helps

Step-by-step explanation:

:))

Money is borrowed at ​%18 simple interest. After one​ year, ​$981.76 pays off the loan. How much was originally​ borrowed?

Answers

Answer:

$805.0432

Step-by-step explanation:

118% was paid, so the original would be 82% of 981.76 (100-18), which is $805.0432 (rounds to $805.04)

Solve the compound inequality 4x – 7 > 5 or 5x + 4 ≤ –6

Answers

Answer:

inequality form: x [tex]\leq[/tex] -2 or x > 3

interval notation form: (-∞,-2] ∪ (3,∞)

Step-by-step explanation:

I attached a picture that shows all the work. You begin by isolating then solving for x on both sides. Then form a solution using the information found out about x. For example, you can combine the found inequalities for x to solve that x must be GREATER than 3 while being LESS than -2. Using that you can form an line and make a line. Remember, when writing in interval notation form you always begin from the left to the right (in reference) to the number line.

What feature might Samantha have used to sort these shapes into the same group

Answers

Answer:

picture?

Step-by-step explanation:

9j/5-6j simplify your answer. Type a interger or a fraction. Type your answer in the form a+bj

Answers

Dividing by a complex number is a similar process to the above - we multiply top and bottom of the fraction by the conjugate of the bottom.

50 points each question. Please help. How do I solve?

Answers

Answer:

Here's your solution mate..

ABC and ACD are both right angled triangles. a) explain why the length of AC is 13cm.​

Answers

Answer:

In the picture attached, the question is shown.

a) Applying Pythagorean theorem to triangle ABC, and solving for AC:

CB² + BA² = AC²

5² + 12² = AC²

√169 = AC

13 cm = AC

b) Applying Pythagorean theorem to triangle ACD, and solving for AD:

CD² + AC² = AD²

5² + 13² = AD²

√194 = AD

13.9 cm = AD

Step-by-step explanation:

(this is probability)

Answers

Answer:

Step-by-step explanation:

P(less than 6) = 2/5

Answer:  2/5

There are 5 spaces total. Of these, only 2 spaces are less than 6, namely the pizza slices labeled "4" and "5".

That's how we get to 2/5

2.
A standard piece of paper is estimated to be 0. 00005 meter thick. If the thickness, in meters,
of a standard piece of paper is rewritten as 5 x 10*, what is the value of x?

Answers

Answer:

x = -5

Step-by-step explanation:

[tex]0.00005 = 5 \times {10}^{ - 5} \\ \\ \implies \: x = - 5[/tex]

The width of a golden rectangle is 15 feet. Find the perimeter of the rectangle to the nearest foot.
39 feet
64 feet
79 feet
72 feet
96 feet

Answers

Answer:

79 ft

Step-by-step explanation:

Golden rectangle side ratios   1 : (1+sqrt5 )/2

      (approx  1: 1.618)

15 + 15   +  2*15*1.618 = ~79 ft

BUT perhaps the 15 is the 1.618 side

15/1.618 + 15/1.618   + 15 + 15   ~ 49 feet

I need help with conversation rates. So it says

Approximately 30,300 citizens of a country died in an automobile accidents in 2015. Express this toll in deaths per day.

Answers

Answer:

144 deaths

Step-by-step explanation:

So, assuming it's not a leap year 30,300 must be divided by the number of days in the year to get the daily amount.

30,300/365 = 114.339....

since 3 is not greater than 5, the 144 does not round up but stays the same.

(Since you cannot have a fraction of a death)

114 is your answer

hope this helps :)

Given z1 = 5 – 2i and z2 = 3 + 2i, which letter represents z1 – z2?

Answers

[tex]z_1 - z_2 \\\\=(5-2i) -(3+2i)\\\\=5-2i-3-2i\\\\=2-4i[/tex]

Answer:

z1 - 2z = 2

Step-by-step explanation:

make 2i stand alone in both equations

therefore, in equation one, we have;

z1-5=-2i

5-z1=2i

we do same in equation 2

z2-3=2i

therefore, comparing the two equations, we can equate them!

2z-3=z1-5

-3+5=z1-2z

2 = z1 - 2z

therefore, z1 - 2z = 2

7+8+21+33+?=an average of 17

Answers

Answer:
7+8+21+33+17=17,2

A mean is an arithmetic average of a set of observations. The value of the unknown number is 16.

What is Mean?

A mean is an arithmetic average of a set of observations. it is given by the formula,

Mean = (Sum of observations)/Number of observations

Let the unknown number be represented by x.

As per the formula of averages, we can write,

Mean = (Sum of observations)/Number of observations

(7 + 8 + 21 + 33 + x)/5 = 17

(69 + x) / 5 = 17

Multiply both the sides of the equation by 5,

(69 + x)/5 × 5 = 17 × 5

69 + x = 85

Subtract 69 from both the sides of the equation,

69 + x - 69 = 85 - 69

x = 16

Hence, the value of the unknown number is 16.

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Joe is measuring the widths of doors he bought to install in an apartment complex. He
measured 72 doors and found a mean width of 36.1 inches with a standard deviation of
0.3 inches. To test if the doors differ significantly from the standard industry width of 36
inches, he computes a z-statistic.
-M
Z=
on
What is the value of Joe's z-test statistic?
Thank you

Answers

This is correct trust me I know it’s the answer

The value of z test statistics is 2.83.

What is z score?

Simply said, a z-score, also known as a standard score, informs you of how far a data point is from the mean. Technically speaking, however, it's a measurement of how many standard deviations a raw score is from or above the population mean.

You can plot a z-score on a normal distribution curve. The range of Z-scores ranges from -3 standard deviations (which would be on the far left of the normal distribution curve) to +3 standard deviations (which would fall to the far right of the normal distribution curve). You must be aware of the mean and population standard deviation in order to use a z-score.

Given mean = x = 36.1 inches

standard deviation = σ = 0.3

sample size = n = 72

and μ = 36.1

here z = (x - μ)/(σ/[tex]n^{1/2}[/tex])

z = (36.1 - 36 )(0.3/[tex]72^{1/2}[/tex])

z = 0.1/0.0354

z = 2.8248

z = 2.83

Hence the value of z test is 2.83.

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. The fourth grade class is donating 100 clothing items to charity. 63 hundredths of the items are sweaters and 0.20 of the items are jeans. What part of the clothing items are neither sweaters nor jeans? Write the number as a fraction with a fraction with a denominator of 100.​

Answers

Answer: 17/100

Step-by-step explanation:

63/100 is sweaters and 20/100 is jeans and when you add them together you get 83/100. 100/100-83/100=17/100

How is this answer correct?

Answers

Circumference is diameter x pi so the diameter of the circle is 11.

Radius is half the diameter so the radius is 11/2 = 5.5


area of a circle is r^2 x pi

Area = 5.5^2 x pi

5.5^2 = 30.25

Area = 30.25pi

Which of these numbers is in the solution set of 9x = 63? A. 9 B. 7 C. 8 D. 6

Answers

Answer:

B: 7

Step-by-step explanation:

9x = 63

9/63 = 7

The number that is in the solution set of [tex]9x=63[/tex] is [tex]7[/tex]

How much is Pete's 12%
commission
on $50,000 in sales
I NEED THIS IM FAILING MATH PLSSSS

Answers

i think 12,000 is the answer, 50,000 • 0.12 (12% converted to a decimal)

if x² = 64, then 1/3 + x⁰​

Answers

Answer:

4/3 or 1 1/3

Step-by-step explanation:

Finding x

x² = 64x = ±8

Substitute in the equation

1/3 + (±8)⁰1/3 + 14/3 or 1 1/3

Answer:

[tex]\huge\boxed{\bf\:\frac{4}{3} }[/tex]

Step-by-step explanation:

If, [tex]x^{2} = 64[/tex], then,

[tex]x^{2} = 64\\x = \sqrt{64}\\x = (+/-)8[/tex]

Now, remember that any number when folllowed by exponent 0 will always have its value as 1.

Then,

[tex]\frac{1}{3} + x^{0} \\ =\frac{1}{3} + (+/-8)^{0} \\= \frac{1}{3} + 1\\=\frac{1}{3} +\frac{3}{3} \:\:\:\: (LCM = 3)\\ \boxed{\bf\:\frac{4}{3} }[/tex]

[tex]\rule{150pt}{2pt}[/tex]

A football team loses 5 yards on each of 3 consecutive plays. What signed number represents the team's total loss of yards on the 3 plays?

Answers

Answer:

change below :)

Step-by-step explanation:

You would start out at in the middle of a number line (horizontal). After the first play, you would move to the left on the line 5 spots (to simulate 5 yards lost) and then make a dot to show your new position. You would do the same thing for the next two plays, moving 5 spots to the left each play and creating a new starting point each time. The total spots moved after the 3 plays is 15 spots to the left.

1. What type of insurance do you think you will first purchase (or have purchased)? Why?

Answers

Answer:

Car insurance

Step-by-step explanation:

Because most people will start driving at the age of 15 and have a license by the age of 16. In order to drive a car, you will need car insurance.


Hope this helps!

Find (x+4) (x²+x-2). Write your answer in standard form.
The product is

Answers

Answer:

x³ + 5x² + 2x - 8

Step-by-step explanation:

1) Distribute

(x + 4) (x² + x - 2)

x(x² + x - 2) + 4 ( x² + x - 2)

2) Distribute

x(x² + x - 2) + 4 (x² + x - 2)

x³ + x² - 2x + 4 (x² + x - 2)

3) Distribute

x³ + x² - 2x + 4 (x² + x - 2)

x³ + x² - 2x + 4x² + 4x - 8

4) Combine like terms

x³ + x² - 2x + 4x² + 4x - 8

x³ + 5x² - 2x + 4x - 8

5) Combine like terms

x³ + 5x² - 2x + 4x - 8

x³ + 5x² + 2x - 8

15. Higher Order Thinking Nancy made a
table runner that has an area of 80 square
inches. The length and width of the table
runner are whole numbers. The length is
5 times greater than the width. What are
the dimensions of the table runner?
0
What are the dimensions of the table runner

Answers

The length of the rectangle is 20 inches, and the width of the rectangle is 4 inches if the table runner has an area of 80 square inches. The length and width of the table runner are whole numbers. The length is 5 times greater than the width.

What is the area of the rectangle?

It is defined as the space occupied by the rectangle which is planner 2-dimensional geometry.

The formula for finding the area of a rectangle is given by:

Area of rectangle = length × width

The area of the table runner = 80 square inches

Let's assume the length of the rectangle is L and the width is W

Then L = 5×W ...(1)

L×W = 80 ...(2)

Put the value of L in the equation (2)

5W(W) = 80

5W² = 80

W² = 16

W = ±4

Width cannot be negative.

W = 4 inches putting this value in the equation (1)

L = 5(4) = 20 inches

Thus, the length of the rectangle is 20 inches, and the width of the rectangle is 4 inches if the table runner has an area of 80 square inches. The length and width of the table runner are whole numbers. The length is 5 times greater than the width.

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A triangle has sides with lengths of 15 meters, 36 meters, and 39 meters. Is it a right triangle?

Answers

Yes it is right triangle
So correct is Yes

Students in a school were asked to collect old bottles as part of a recycling drive. Some of the data recorded at the drive is shown in the histogram below:


Which information is not provided in the histogram?

The total number of students who collected bottles
The number of students who collected 6 or more bottles
The number of students who collected exactly 4 bottles
The total number of students who collected 12 or more bottles

Answers

Answer:

c

Step-by-step explanation:

As, there is no as such information regarding to number of students who collected exactly 4 bottles in histogram.

26,30,45,43,26,14,28,33,56,29,what is the mean absolute deviation of the data set

Answers

Answer: 9.

Step-by-step explanation: To find the MAD (mean absolute deviation) we need to do the following steps below:

1. Find the mean.

2. Subtract the mean from the numbers of the data.

3. Add the results and divide to find the MAD.

The steps are done below:

1. Find the mean: In order to find the mean of a data set, you need to add all the numbers and then divide the result by how many numbers there are in the data set.  In this problem, there are 10 numbers in the data set, so whatever we get for adding the data numbers together needs to be divided by 10.

26 + 30 + 45 + 43 + 26 + 14 + 28 + 33 + 56 + 29 = 330.330 / 10 = 33.

2. Subtract the mean from the numbers of the data: To do this, we need to subtract 33 from all the numbers on the data.  The following is done below. (*Note: You may notice that most equations like 26 - 33 would be in the negatives, but for data, it has to be positive.  If you ever run into a situation like that, you simply just make it positive).

26 - 33 = 7.30 - 33 = 3.45 - 33 = 12.43 - 33 = 10.26 - 33 = 7.14 - 33 = 19.28 - 33 = 5.33 - 33 = 0.56 - 33 = 23.29 - 33 = 4.

3. Add the results and divide to find the MAD: Now that we have the results, we add those numbers and then divide to find the MAD.  Make sure that when you divide that it is 10 that you're dividing because once again, there are 10 numbers for the results.

7 + 3 + 12 + 10 + 7 + 19 + 5 + 0 + 23 + 4 = 90.90 / 10 = 9.

Therefore, 9 is the MAD.

Let me know if this is right! :)

both triangles are isosceles triangles with two equal angles of 55 degree . all corresponding sides are congruent

true
false

Answers

Answer:

false

Step-by-step explanation:

there is not enough information in order to apply theorems such as:

SSS

SAS

AAS

among others

Which two expressions are equivalent?
F. 13 + (16 - x) and (16 + x) + 13
G. x + (4 • 5) and (x + 4) • 5
H. 7(10 + x) and (7 • 10)+ x
J. (8 + x) + 9 and 8 + (x + 9)​

Answers

the answer of your question is H and J


21-25 Use the form of the definition of the integral given in Theorem 4 to evaluate the integral.
23. [tex]\int_{-2}^{0}\left(x^{2}+x\right) d x[/tex]

Answers

[tex]\displaystyle \int^0_{-2} (x^2 +x )~dx\\\\\\=\displaystyle \int^0_{-2} x^2~ dx +\displaystyle \int^0_{-2}x ~ dx\\\\\\=\dfrac 13 \left[x^3 \right]^{0}_{-2}+ \dfrac 12 \left[ x^2\right]^{0}_{-2}\\\\\\=\dfrac 13 (0+8) + \dfrac 12 (0-4)\\ \\\\=\dfrac 83 - \dfrac 42\\\\\\=\dfrac 83 - 2\\\\\\=\dfrac 23[/tex]

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