surface area of cylinder

Surface Area Of Cylinder

Answers

Answer 1

Answer:

75.40 cm²

Step-by-step explanation:

SA = 2πrh + 2πr²

SA = 2π(2)(4) + 2π(2)²

SA = 50.27 + 25.13

SA = 75.40 cm²


Related Questions

In order to solve for x in the equation 3x - 18 = 78, What is the FIRST step?

Answers

Answer:

add 18 to both sides, giving you 3x = 96

Determine how many x-intercepts the quadratic function in the graph has and identify the intercept points.
Question 6 options:

A)

Two x-intercepts, (2.5,0), (5.5,0)

B)

Two x-intercepts, (2,0), (6,0)

C)

Two x-intercepts, (0,2), (0,6)

D)

One x-intercept, (4,–2)

Answers

Answer:

B . The graph intercept at two points, (2,0) and (6,0)

Answer: (4,-2)

Step-by-step explanation:

(4,-2)

This February only one quarter of the days had an average temperature above freezing (32 degrees). How many days in February were below freezing?

Answers

Answer:

21 days

Step-by-step explanation:

February has 28 days

28/4=7

1 quarter of 28 is 7

Since one quarter was above freezing, 3 were below freezing

3x7=21

21 days is the final answer

Answer:

21 days

Step-by-step explanation:

There are 28 days in February.

If one quarter of the days had a temperature above freezing, that means that three quarters of the days had a temperature below freezing.

Find how many days were below freezing by multiplying 28 by 3/4

28(3/4)

= 21

So, 21 days in February were below freezing.

Janes dog eats 5 pounds of food a week how many weeks will a 40- pound bag last?

Answers

Answer:

8

Step-by-step explanation:

It should be 8 weeks

Find the volume of the figure please.

Answers

Answer:

1568 in^3

Step-by-step explanation:

Answer:

Volume = 1,568

Step-by-step explanation:

V = Bh

B = 17.5 x 14 = 245

h = 6.4

245 x 6.4 = 1,568

The easier way:

17.5 x 14 x 6.4 = 1,568

Let me know if this helps!

Michael has 938cups of glue. He wants to put 11956cups into each smaller container. How many smaller containers can he fill?

Answers

Answer: See explanation

Step-by-step explanation:

Your question isn't well written. Let's reframe it and solve.

Michael has 938cups of glue. He wants to put 11 cups into each smaller container. How many smaller containers can he fill?

To solve this question, we have to divide the total cups of glue that Michael has by the number of cups that he wants to put in each container. This will then be:

= 938 / 11

= 85 3/11

Therefore, he can fill 85 containers.

To solve the question in case you've different numbers, just follow the steps above and you'll get it.

10 x 56 /100 - 37 + x =97
whats x???

Answers

Answer:

x= 642/5 or simplified would be

How many solutions does the following equation have?
9z-6+7z=16z-6

Answers

Answer:

This equation has infinite solutions

Step-by-step explanation:

9z - 6 + 7z = 16z - 6

16z - 6 = 16z - 6

z = z

Kala is a software saleswoman. Her base salary is $1800, and she makes an additional $110 for every copy of Math is Fun she sells.
Let P represent her total pay (in dollars), and let N represent the number of copies of Math is Fun she sells. Write an equation relating P to N. Then use this
equation to find her total pay if she sells 29 copies of Math is Fun.
Equation:
8
Х
Total pay if Kala sells 29 copies: s[

Answers

Answer:

1800 + 110n = P

4990 * 8 = 39,920

Step-by-step explanation:

So first, the best way to solve linear word problems is to define your variables (which was given to you)

Second, construct your equation. From the information, we know that $1,800 is her starting amount. So that will be the y-intercept. Then, we see that she gets additional $110 for every copy she sells.

A cardboard box has edges of length 2.3 in, 6.5 in, and 9.7 in. What is the volume of the box?​

Answers

Answer:

volume = 145.02 in³

Step-by-step explanation:

volume = 2.3 x 6.5 x 9.7 = 145.02 in³

simplify the expression. explain when answering please!

Answers

Hello!

This question is relating powers and simplification.

Let's look at the term in the denominator first, which is [tex]d^0[/tex].

The zero exponent rule states that anything to the 0th power, will be 1.

Meaning that we can simplify this expression to [tex]6c^{-3}[/tex].

Now let's look at the term we have left.

The negative exponent rule states that anything to the negative power can be moved to the other side of the fraction and have its exponent turn into a positive exponent.

Meaning that we can simplify [tex]6c^{-3}[/tex] to [tex]\frac{6}{c^3}[/tex].

Hope this helps!

A function is shown in the table.
Xg(x)
-3 17
-1 -3
0 -4
2 13
Which of the following is a true statement for this function? (5 points)

Answers

Answer:

the answer here its a -3 17

One number is 6 more than other number. Also, 7 times the smaller number is equal to 6 times the
larger number. Find the two numbers.

Answers

Answer:

The numbers are 36 and 42

Step-by-step explanation:

Represent the two numbers  by m and n, m being the larger number and n the smaller.  Then

m = n + 6.  also, 7n = 6m

Substitute n + 6 for m in the second equation:  7n = 6(n + 6).

Performing the indicated multiplication, we get 7n = 6n + 36, or n = 36.

Then m = n + 6, which here is m = 36 + 6 = 42.

The numbers are 36 and 42.

Zaharia is 4/5 as tall as Zayden. Zayden is 3/5 as tall as Eric. Eric is how many times as tall as Zaharia?

Answers

Answer: rttgyt5tgot4h5uioyh

Step-by-step explanation:

hudshviowuerbgp

help Plz
If the slice of pizza below has an area of 18.86 cm?, what is the measure of the central angle to the nearest
degree?
8 cm

Answers

Answer:

Step-by-step explanation:

Help Plz

If the slice of pizza below has an area of 18.86 cm?, what is the measure of the central angle to the nearest

degree?

8 cm

Greg has two coupons for a bicycle.
Coupon A: $19 rebate on a $81 bicycle
Coupon B: 20% off of a $81 bicycle
Choose the coupon that gives the lower price.

Answers

You need to do function of equations for that I’ll try abs figure it out one sec

The price of Coupon A  will be less than the price of Coupon B. Coupon A gives the lower price.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

Greg has two coupons for a bicycle.

Coupon A: $19 rebate on an $81 bicycle. Then the price of a bicycle will be

⇒ $81 - $19

⇒ $62

Coupon B: 20% off of an $81 bicycle. Then the price of a bicycle will be

⇒ $81 x 0.80

⇒ $64.8

The price of Coupon A  will be less than the price of Coupon B. Coupon A gives the lower price.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

PLEASE HELP!!!!!!!!!!

Answers

The answer is the first one

Please help BY tomorrow

A truck leaves a garage and travels east at a rate of 55 miles per hour. A car leaves the same garage 15 minutes later and travels east at a rate of 66 miles per hour. After how many minutes from the time the car leaves does the car overtake the truck?​

Answers

Answer:

think yourself........

Step-by-step explanation:

vjcjxgsjgclnckjcljcljckj

Hey I don’t know the answer but if it is on big ideas I would like to recommend “slader” for help :]

2. Write down a number that has a value less than |14.7|

Answers

Absolute Value of 14.7 is 14.7 any number below 14.7.

Write an equation of the perpendicular bisector of the segment with endpoints M(1,5) and N(7,−1).​

Answers

Answer:

y = x - 2

Step-by-step explanation:

Going from M to N, the run (increase in x) is 6, from 1 to 7.  The rise (which is actually a decrease here) is -6, from 5 to -1.  Thus, the slope of the line segment MN is m = rise / run = -6/6, or -1.

The slope of the perpendicular bisector is the negative reciprocal of this m = -1, and is +1.

This bisector passes through the midpoint of segment MN.  The x-coordinate of this midpoint is (1 + 7)/2, or 4, and the y-coordinate is (5 - 1)/2, or 2:  (4, 2).

Knowing both a point on this bisector (4, 2) and the slope of the bisector (+1), we can modify the point-slope form of the equation of a straight line, y - k = m(x - h), to obtain y -2 = 1(x - 4), or y = 2 + x - 4, or y = x - 2

A real estate agent sold a house for $250,000 and received a
5.5% commission on the sale. How much was the commission?

Answers

Answer:13,750

Step-by-step explanation:5.5% of 250,000 is 13,750.

Answer:

13,750

Step-by-step explanation:

Find (8°f)(3)
f(x) = (x + 2
g(x) = -x^2

Answers

Answer:

A) -25

Step-by-step explanation:

[tex]f(x)=|x+2|\\[/tex]

[tex]g(x)=-x^{2}[/tex]

[tex](gof)(x)=g(f(x))=g(|x+21|)\\[/tex]

[tex](gof)(x)=-(|x+21)^{2}[/tex]

[tex](gof)(3)=-(13+21)^{2}[/tex]

[tex](gof)(3)=-(151)^{2}[/tex]

[tex]=-(5)[/tex]

[tex](gof)(3)=-25\\--------[/tex]

hope it helps...

have a great day!!

(-2, 7) and (-2, 14)
Slope

Answers

Answer:

slope is undefined

OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS-

Answers

Number 3 is 18

Number 4 is 32

Number 5 is 8

Number 6 is 46

Number 7 is 24 since you add every side (2+2+10+10) and it gives you 24

find the measure of the missing angle

Answers

Answer:

60°

.....................

Answer:

60

Step-by-step explanation:

This is a complementary angle which means two angles that sum up to 90 so 60+30=90

Reflect on your Learning Check to move forward. What topics were covered on your learning check? What topics do you have mastery of? What topics do you need clarification?

Answers

Step-by-step explanation:

I feel like you need help figuring out what to write

For the first one say something like

These topics..... were covered in my learning check

I feel like I am pretty good with .....  topics

I feel like I need some help with ..... topics

Correct me if I'm wrong but this is what I assume your asking

A bag contains 18 balls. There are 6 red balls, 6 yellow balls, and 6 green balls. A ball is drawn at random and returned. Then another ball is drawn at random. Select ALL statements that are true.

A. The expected probability of drawing a green ball first is the same as the expected probability of drawing a green ball second.

B.There are six possible outcomes.

C.The probability of drawing a red ball first is the same as not drawing a red ball second.

D.The expected probability of drawing a red ball and then a yellow ball is 19.

Answers

Answer:

There are 18 balls in the bag:

6 are red

6 are yellow

6 are green.

A ball is drawn at random and then returned.

Then another ball is drawn.

Now, let's analyze each option and let's see if it is true or not.

A) The probability of drawing at random a green ball is equal to the quotient between the number of green balls and the total number of balls.

Then for the first draw, the probability is 6/18

Because the drawn ball is returned, for the second draw we still have 6 green balls and 18 balls in total, then the probability still is 6/18

Statement A is true

B) if we define the notation:

YR

as:

Yellow in the first draw, red in the second draw.

The possible outcomes are:

YR

YG

YY

RR

RG

RY

GR

GG

GY

So we have a total of 9 outcomes, we also can calculate this in the following way:

For the first event (first draw) we have 3 possible outcomes (Y, G, and R)

For the second event (second draw) we have again 3 possible outcomes.

The total number of outcomes is the product between the possible outcomes for each event, this is:

3*3 = 9

Then statement B is false.

C) The probability of drawing a red ball first is:

p = 6/18

The probability of NOT drawing a red ball second, is equal to the probability of drawing a yellow or green ball second (we have 12 balls that are green or yellow, and 18 total balls) then this probability is:

q = 12/18

The probabilities are different, then we can conclude that statement C is false.

fD) The expected probabilty of drawing a red ball and then a yellow ball is the product of the individual probabilities, this is:

prob of drawing a red ball first = 6/18

prob of drawing a yellow ball second = 6/18

Joint probability:

P = (6/18)*(6/18) = (1/3)*(1/3) = 1/9

So statement D is true.  (it says 19, i suppose that there is a mistake in this sentence and it actually should say 1/9)

Find x in each triangle.

Answers

Answer:

where’s the triangles?

Where is the triangle?

Lines AB and CD are parallel. If 6 measures (3x - 31)°, and 5 measures 148°, what is the value of x? A. x = 21 B. x = 212 C. x = 148 D. x = 11

Answers

Answer:

x = 21

Step-by-step explanation:

If lines AB and CD are parallel, then we can assume that m<5 and m<6 are supplementary that is the sum of both angles is 180degrees

Hence;

3x - 31 + 148 = 180

3x + 117 = 180

Subtract 117 from both sides

3x+117-117 = 180 - 117

3x = 180 - 117

3x = 63

x = 63/3

x = 21

Hence the value of x will be 21 if both angles are supplementary

find three numbers that have a mode of 4 and a mean of 6​

Answers

Answer:

4, 4, 10

Step-by-step explanation:

4, 4, 10

4 appears the most so that's the mode.

Mean = (Sum of numbers)/(3 numbers)

Mean = (4 + 4 + 10)/3

Mean = (18)/3

Mean = 6

The three numbers that have a mode of 4 and a mean of 6​ are 4, 4, and 10.

What is mean?

Mean is defined as the ratio of the sum of the number of the data sets to the total number of the data. A set of data values mode is the value that appears the most frequently.

The three numbers that have a mode of 4 and a mean of 6 will be calculated below:-

Let us suppose the three numbers are 4, 4, and 10 the mean will be calculated as:-

Mean = (Sum of numbers)/(3 numbers)

Mean = (4 + 4 + 10)/3Mean = (18)/3

Mean = 6

Therefore, the three numbers that have a mode of 4 and a mean of 6​ are 4, 4, and 10.

To know more about mean follow

https://brainly.com/question/14805451

#SPJ2

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