Hello is this correct ​

Hello Is This Correct

Answers

Answer 1

Answer:

Correct

Step-by-step explanation:

Surface area of a sphere = 4 pi r^2  

   diameter = 28    then r = 14 ft

4 (pi)(14^2) = 2463  ft^2        

    looks correct for your value of pi =3.14


Related Questions

If someone could help me with these two problems please. ( will mark brainliest if correct )

Answers

The value of t for the angles of the given triangle will be 30.67.

What are the angles of triangle?

The straight angle is equal to the total of the angles of a triangle. Three angles, one at each vertex and bounded by two neighbouring sides, make up a triangle. For a very long period, it was unknown if there were any alternative geometries for which the total is different.

The triangle has three sides and is a two-dimensional figure having the sum of the angles of 180 degrees.

In the given image the three angles are 2t, t + 8, and t - 12. The value of t will be calculated as:-

2t + t + 8 + t - 12 = 180

4t - 4 = 180

4t = 184

t = 184 / 4

t = 30.67

Therefore, the value of t for the angles of the given triangle will be 30.67.

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Use the equation below to find p, if a=16,b=9, and c=13

Answers

The value of p when a = 16, b = 9 and c = 13 is 38

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Equations are classified based on degree (value of highest exponents) as linear, quadratic, cubic and so on. Variables can be dependent or independent. Dependent variables depend on other variable while an independent variable do not depend.

Given that:

p = a + b + c

Substituting the values of a, b and c:

p = 16 + 9 + 13

p = 38

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Select the correct answer from each drop-down menu. A graph plots stock value. A line rises from (18, 1,725 point 00) to (20, 1,750 point 00) declines to (25, 1,670 point 0 0) and rises to (1, 705 point 7 4). Line graphs show price trends over different time periods. What data points are used to create a line graph on the stock quote shown? The line graph is created using the of the stock each .

Answers

The line graph is created using the close price of the stock each day.

What is a stock?

In Trading and securities, a stock is also known to as equity and it can be defined as a financial security which represents a stockholder's ownership of a fraction of a corporation.

What is an closing price?

An closing price can be defined as the official price at which a financial security first trades at the closing of an exchange on a stock market, during a regular trading session.

This ultimately implies that, a closing price is the price at which the last financial transactions are completed or the last bids and offers are made by eligible customers on a stock market.

In this context, we can reasonably infer and logically deduce that the close price of the stock each day was used to create the line graph.

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Complete Question:

Select the correct answer from each drop-down menu. A graph plots stock value. A line rises from (18, 1,725 point 00) to (20, 1,750 point 00) declines to (25, 1,670 point 0 0) and rises to (1, 705 point 7 4). Line graphs show price trends over different time periods. What data points are used to create a line graph on the stock quote shown?

The line graph is created using the _____ of the stock each _____.

Answer:w

Step-by-step explanation:aaw

w

What value of c in the equation cx+4y=12 would give the equation a slope of 8?

Please provide all work and steps you used to find your answer, or the answer is pretty much useless. Thank you!

Answers

The value of c in the equation cx+4y=12 would give the equation a slope of 8 would be 32.

What is the slope of a straight line?

A straight line of the form  y = MX + c has its slope as 'm'

It is constant for a line. The more the slope is, the steeper the line is.

Sign convention takes bottom left to top right going line as positive sloped. And that line which goes from bottom right to top left is taken to have a negative slope. The horizontal line has 0 slopes and the vertical line has an infinite slope, as it is now at maximum steepness.

We have been given the equation cx+4y=12 which has a slope of  8.

Also cx+4y=12

4y = 12 - cx

y = 12/4 - cx/4

y = 3 - cx/4

Then we know that straight line of the form  y = mx + c

By comparing the formula;

y = 3 - cx/4

Slope = c/4 = 8

c/4 = 8

c = 8(4)

c = 32

Therefore, the value of c in the equation cx+4y=12 would give the equation a slope of 8 would be 32.

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PLEASE HELP Which equation is equivalent to -2a + 6b = -8c + 16?​

Answers

You could divide both sides by 2, which gets you -a + 3b = -4c + 8.

Answer:

a=4c-8+3b

Step-by-step explanation:

An airplane travels 130,000 feet horizontally drring take-off, reaching a height of 35,000 feet. the airplane travels at a constant rate.what is the plane's launch angel? round your answer to the neatest degree.

Answers

The launching angle of the plane which has reached a height of 35000 ft is 15°

Let the distance travelled by the airplane horizontally be AB

The height reached by the airplane be BC

Thus AB = 130000 ft

        BC = 35000 ft

The launching angle of the airplane can be found using the formula

                                   tanθ = opposite / adjacent

                                                    (or)

                                           tanθ  = BC / AB

Let us substitute the known values in the above equation, we get

                                         

                                          tanθ  = 35000/130000

                                          tanθ  = 0.2692

                                               θ  = tan⁻¹ (0.2692)

                                               θ  = 15.067°

                                               θ  ≅ 15°

Therefore , the launching angle of the airplane is 15°

 

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c(4+3c)-0.75(c+3)
PLEASE EXPLAIN NEED TO SHOW MY WORK ALREADY GOT IT RIGHT JUST NEED TO SHOW MY WORK

Answers

Answer:

3.25c + 3c^2 - 2.25.

Step-by-step explanation:

c(4+3c) - 0.75(c+3)

Distribute “c” through the parentheses

4c + 3c^2 - 0.75(c+3)

Distribute “-0.75” through the parentheses

4c + 3c^2 - 0.75c - 2.25

Collect like terms and your answer is

3.25c + 3c^2 - 2.25.

in july, abby's gym membership will increase by 18% a month. if she is currently paying $32 a month how much will she pay in july?

Answers

The exponential function that shows the amount of money paid for membership x months after the beginning of the year is given by y = 32(1.18)ˣ.

What are the types of exponential function?

There are two possibilities for the exponential function: it can be increasing or decreasing. Being increasing means that as the value of x increases, the value of f(x) also increases; being decreasing means that as the value of x decreases, the value of f(x) also decreases.

Let y represent the amount of money paid for membership x months after the beginning of the year. Abby's gym membership will increase by 18% a month. This is an exponential function.She is currently paying $32 a month, hence:y = 32(1 + 0.18)ˣy = 32(1.18)ˣ

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A research center poll showed that ​% of people believe that it is morally wrong to not report all income on tax returns. What is the probability that someone does not have this​ belief?.

Answers

The probability that someone does not have this​ belief is (1-x%)

If, x % of people believe that it is morally wrong to not report all income on tax returns.

A research center poll showed that ​% of people believe that it is morally wrong to not report all income on tax returns.

let, x % of people believe that it is morally wrong to not report all income on tax returns.

then, the probability that someone does not have this​ belief-->

the sum of the probability of all events equal to 1.

so, probability(believe it morally wrong to not report ) + probability(does not believe this )=1;

so, the probability that someone does not have this​ belief = 1-x%

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assume that the traffic to the web site of smiley’s people, inc., which sells customized t-shirts, follows a normal distribution, with a mean of 4.56 million visitors per day and a standard deviation of 720,000 visitors per day. (a) what is the probability that the web site has fewer than 5 million visitors in a single day? if needed, round your answer to four decimal digits

Answers

The probability that the web site has fewer than 5 million visitors in a single day is 0.7293.

For a normally distributed set of data, given the mean and standard deviation, the probability can be determined by solving the z-score and using the z-table.

First, solve for the z-score using the formula below.

z-score = (x – μ) / σ

where x = individual data value = 5 million

μ = mean = 4.56 million

σ = standard deviation = 720,000

z-score = (5 million - 4.56 million) / 720,000

z-score = 440,000 / 720,000

z-score = 0.6111

Find the probability that corresponds to the z-score in the z-table. (see attached images)

z-score =  0.6111

Using interpolation of values,

probability = 0.7293

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Ed buys a vase for £24 and adds 25% onto price before putting it into his shop window
What price does the price tag say in the window

Answers

Answer:

£30

Step-by-step explanation:

Percentage = Division

24 × 25% or 24 ÷ 4

= 6

6 + 24

= 30


How many square feet of outdoor carpet will
we need for this hole?

Answers

36ft^2 square feet of outdoor carpet we will need for this hole.

How to find the square feet of carpet needed?

Big square: Length = 6 ft ; Width = 4 ft

Small square: Length = 6 ft ; Width = 2 ft

Area = L x W

Big square: 6 * 4 = 24 ft^2

Small square: 6 * 2 = 12ft^2

On adding both, we get

Total area = 24 + 12 = 36ft^2

36ft^2 square feet of outdoor carpet we will need for this hole.

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Dad is getting food ready for my birthday party! Including me, there will be 18 people at the party. Dad is baking cookies for us! He can bake 24 cookies per batch. How many batches should should I tell dad to make so we can have 4 cookies?

Answers

Assuming all 18 members want 4 cookies each, the total amount of cookies needed is 18 x 4, or 72.
Dividing 72 total cookies by 24 cookies per batch will yield the total amount of batches needed to provide everyone with 4 cookies. 72/24 equals 3 exactly. Therefore, 3 batches of 24 cookies is needed to provide everyone with 4 cookies each.

Okay so we have 18 ppl we want 4 cookies per person

in one batch we can make 24

first multiple 18 by 4 or vice versa

answer is 72

now divide 72 by 24

answer is 3

we need 3 batches to make 4 cookies per person

Point A is at (-7, 5) and point B is at (7,3).
What is the midpoint of line segment AB?

Answers

[tex]m = ( \frac{x1 + x2}{2} . \frac{y1 + y2}{2} ) \\ = ( \frac{ - 7 + 7}{2} . \frac{5 + 3}{2} ) \\ =( \frac{0}{2} . \frac{8}{2} ) \\ m(0.4)[/tex]

be alert m represents the MIDPOINT.

THE MIDPOINT IS (0,4)

Answer:

-1/7

Step-by-step explanation:

prodigy question of perimiter

Answers

The number of length of 4 feet they need is 8.

How to find the number of length required for fencing?

He wants to fence around there garden that measures 8 feet by 8 feet.

The store sells fencing in length of 4 feet's.

Therefore,

perimeter of the garden = 4l

where

l = side length

The perimeter of a shape is the sum of the whole side.

Hence,

perimeter of the garden = 4 × 8

perimeter of the garden =  32 feet

Therefore,

number of length required = 32 / 4

number of length required =  8

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Find irrational number, which is more than 0,6(3) and less than 0,64.

Answers

An irrational number that lies between the two given ones, 0.6333.... and 0.64 is:

√7 - 2.01 =0.63575...

How to find an irrational number between the two given ones?

Remember that an irrational number is a number that can't be written as the quotient between two integers.

Here we want to find two numbers between 0.6333 (where the 3 repeats infinitely) and 0.64

So we cold try to find a number like:

6.3349412490184...

Such that there is no pattern (because if there were a pattern, it would not be an irrational number).

An example of this can be, for example:

√7 = 2.64575...

This is an irrational number.

Now, if we subtract 2.01 from that we will get:

√7 - 2.01 = 2.64575... - 2.01 = 0.63575...

This is an irrational number and lies between the two given ones, then we conclude that √7 - 2.01 =0.63575... is a correct option.

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help! last question
Question 1 (1 point)
Simplify the expression and rationalize the denominator.
16x4y8
5z

Answers

Answer:

[tex] = \frac{ {4x}^{2} {y}^{4} \sqrt{5z} }{5z} [/tex]

Step-by-step explanation:

[tex] \sqrt{ \frac{16x {}^{4} y {}^{8} }{5z} } \\ = \sqrt{ \frac{16 {x}^{4} y {}^{8} }{ \sqrt{5z \\ } } } \\ = \frac{4 {x}^{2}y {}^{4} }{ \sqrt{5z} } \\ = \frac{ {4x}^{2} y {}^{4} \sqrt{5z} }{5z} [/tex]

A bag contains 42 red, 45 green, 20 yellow, and 32 purple candies. You pick one candy at random. Find the probability that it is purple.

Answers

Answer: 32/139

Step-by-step explanation:

42+45+20+32=139

32/139

solve for x 7 x + 6 / 4 = 2 x − 3 / 5 Give your answer as an improper fraction in its simplest form.

Answers

x = -14/9 is the solution to the equation ( 7x + 6 )/4 = ( 2x − 3 )/5 in a simplified improper fraction form.

What is the value of x in the given equation?

Given the data in the question;

( 7x + 6 )/4 = ( 2x − 3 )/5x = ?

To solve for x, first we cross multiply

( 7x + 6 )/4 = ( 2x − 3 )/5

5( 7x + 6 ) = 4( 2x − 3 )

Remove the parenthesis using distributive property

7x×5 + 6×5 = 2x×4 − 3×4

35x + 30 = 8x - 12

Collect like terms by moving all terms containing x to the left and all constant terms to the right side of the equation.

35x - 8x = -12 - 30

27x = -12 - 30

27x = -42

Divide both sides by 27

27x/27 = -42/27

x = -42/27

x = -14/9

Therefore, the value of x in the given equation ( 7x + 6 )/4 = ( 2x − 3 )/5 is -14/9.

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Answer:

2/3

Step-by-step explanation:

given the following data and a 4-period weighted moving average. t at 1 13 2 20 3 14 4 17 5 19 supposed the weights of the four periods are 4, 5, 8, 11 for the oldest to newest periods, respectively. compute the 4-period weighted moving average in period 5. group of answer choices

Answers

6.06 is compute the 4-period weighted moving average in period 5.

What is average in ?

In mathematics, the middle value—which is determined by dividing the sum of all the values by the total number of values—is the average value in a set of numbers. To calculate the average of a set of data, add up all the values and divide the result by the total number of values.

Identify number to average that is 19,17,14,13 over four day period.

Assigning weights to each number.

= 4 * 19 + 5 * 17 + 8 * 14 + 11 * 13

= 416

The sum of period is 19 + 17+ 14 + 13 = 63

  So , 416/63   = 6.06

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Please help!!!!!!!!!

Answers

Answer:

f(-4) = 19

Step-by-step explanation:

Since -4 < 1, we need to use the bottom part of the function:

[tex]f( - 4) = {( - 4)}^{2} + 3 = 16 + 3 = 19[/tex]

justina needs to dilate traiangle ABC using a scale factor of 1.5

Answers

Using the rule for a dilation, it is found that:

1. The table with the coordinates is given by the first image.

2. The graph of the dilated triangle is given by the second image.

3. The rule is: (x,y) -> (1.5x, 1.5y).

What is the effect of a dilation of a figure?

When a figure is dilated by an scale factor of a, each vertex of the figure is multiplied by the scale factor of a, hence the rule is given by the following vector:

(x,y) -> (ax, ay).

The coordinates of the vertices of the pre-image are given as follows:

A(-2, -2), B(2,2), C(4, -2).

The dilation has a scale factor of 1.5, hence the rule for the calculation of each vertex of the image, considering the pre-image, is given as follows:

(x,y) -> (1.5x, 1.5y).

Then the vertices of the image will be given as follows:

A'(-3, -3), B'(3,3), C'(6, -3).

Each coordinate of A, B and C was simply multiplied by 1/2, and the triangle with these vertices is given by the second image at the end of the answer.

What is the missing information?

The problem is incomplete, and is given by the first image at the end of the answer.

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Use the equation below to find a, if b=3 and h=4

A= bh

PLS HELP :(

Answers

if you rewrite it it’s A=3•4 so the answer is A=12

does anyone know the answer ​

Answers

Assuming that this is like terms
7m+6
7k+9
5b+15

Hooke's Law for an elastic spring states that the distance a spring stretches varies directly as the force applied. If a force of 180 newtons stretches a spring 5 cm, how much will a force of 270 newtons stretch the same spring?

Answers

7.5cm distance a spring when a force of 270 newtons stretch the same spring.

What is force?

A force is an influence that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given Data

A force of 180 newtons stretches a spring 5 cm

If we consider F to be the force and x to be the extension, then:

F = kx

F = 180

x = 5

Equating

180 = 5k

k = 36

F = 36x

Force of 270:

270 = 36x

x= 7.5

7.5cm distance a spring when a force of 270 newtons stretch the same spring.

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?:12 =7:14 what is the answer

Answers

Answer:

I believe the answer is 6:12. . .

Step-by-step explanation:

I think that 7:14 equals 1:2 in its simplest form. 6:12 also is equivalent to 1:2. 1:2 = 1:2.

PLEASE HELP ASAP!!!!!!!!
(03.03 MC)
The table represents a continuous exponential function f(x). XE 2 3 4 5 f(x) 9 3 1 Graph f(x) and identify the y-intercept.
A.9
B.15
C.36
D.3
E.81 ​

Answers

Answer: B. (15)

Y= -[tex]\frac{3}{1}[/tex]x + 15

Step-by-step explanation:

In the Table we see a f(x) decreasing by 3 for every 1 (x)

So we Have a Slope of -3(y) over 1(x)

What is an equation of the line that passes through the point (6,1)(6,1) and is parallel to the line x+3y=15

Answers

Answer:

Step-by-step explanation:

Let's write everything in slope-intercept format of y=mx+b, where m is the slope and b is the y-intercept.

x+3y=15

3y= -x + 15

y = (-1/3)x + 5

Parallel lines will have the sam slope, in this case -(1/3),  So the new line will be:

y = (-1/3)x + b

We need to fijnd a value of b that will force the ine through point (6,1).  Enter (6,1) in the equation and solve for b:

y = (-1/3)x + b

1 = (-1/3)(6) + b

1 = (-2) + b

b = 3

The parallel line is:

   y = (-1/3)x + 3

See the attached graph.

amanda wants to send her dresses to the laundry downstairs, and she wants to keep her cleaning within a budget of . the laundry charges for washing one dress and for ironing one. write an inequality to describe the possible number of dresses that amanda can send to be washed and send to be ironed. if amanda has dresses to be washed, what is the maximum number of dresses that she can send to be ironed? dresses (amanda can send to be ironed).

Answers

The maximum number of dresses that Amanda can send to be ironed is 8.

What is defined an inequality?An inequality compares two values to determine whether one is less than, greater than, or merely not equal to the other.a ≤ b shows that a is less than or equal to ba ≥ b shows that a is greater than or equal to b.

For the given question;

Total budget of Amanda = $100.

Price of washing = $8 per dress.

Price of ironing = $5 per dress.

Total number of dress to be washed = 7.

Let x be the number of dress to be send for ironing.

The inequality becomes.

5x + 7×8 ≤ 100

5x + 56 ≤ 100; is the required inequality.

For finding the x, equate the value.

5x + 56 ≤ 100

5x ≤ 44

x ≤ 8.8

But x must be less, then.

x = 8 dress.

Thus, the maximum number of dresses that Amanda can send to be ironed is 8.

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The complete question is-

Amanda wants to send her dresses to the laundry downstairs, and she wants to keep her cleaning within a budget of $100 . the laundry charges  $8 for washing one dress and for ironing one $5. write an inequality to describe the possible number of dresses that amanda can send to be washed and send to be ironed. if amanda has 7 dresses to be washed, what is the maximum number of dresses that she can send to be ironed? dresses (amanda can send to be ironed).

What ratio is equivalent to 7:6

Answers

Answer: 14 : 12

Step-by-step explanation:

Answer: 14:12

Step-by-step explanation: To find the ratio, you would either multiply or divide the two numbers by the same number, and you would get a simplified ratio or an equivalent one. Because 7:6 is simplified, we have to find an equivalent ratio, meaning we multiply. If we multiply 7 by two, we get 14. Multiply 6 by two to get 12. So, the answer is 14:12. Divide both 14 and 12 by two to get back to 7:6.

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