Please help me understand the question

Please Help Me Understand The Question

Answers

Answer 1

Answer:

180 units^2

Step-by-step explanation:

The formula to find the area of a sphere is:

A=4(pi)(r)^2

A sphere with radius 2r has an area = 4π(2r)² = 4π.4r² = 16πr²

The ratio of the larger sphere to the smaller = 16πr² : 4πr² = 4 : 1

If the area of the smaller sphere is 45 units then the area of the larger sphere is 45 x 4 = 180 units^2.

hope this helps :)


Related Questions

A spinner has 18 equal-sized sectors labeled 1 through 18. The spinner is spun once.

What is the probability that the spinner lands on an even number or a number greater than 10?

1/2 4/9 11/18 13/18

Answers

Answer:

2/9

Step-by-step explanation:

12,14,16,18 are all greater than 10, which is 4/18 numbers, simplified as 2/9

Answer: 13/18

Step-by-step explanation:

First you add up the amount of even numbers and the amount of numbers greater than 10

2,4,6,8,10 make 5 then add 8 more for 11-18, leaving you with 13 then take 13 and divide it by the total (18) and you will get 0.72 or 13/18

Write an expression which can
be used to describe the area in
square units of a rectangle that
has a length of 5x3y5z2 units
and a width of 3x2yz4 units.

Answers

Answer:

15x^2 6y^2 5z^6

Step-by-step explanation:

area = length x width

area =  5x3y5z^2   *   3x2yz^4

explain pls

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

Answers

Answer:

C. 9

Step-by-step explanation:

This is the answer because of how the math works...Its really hard to explain how it works.

Which equation represents a line with a slope of -4

Answers

Answer:

y= -4x

Step-by-step explanation:

it will be more helpful to answer this question if the equations were provided.

New Berlin Corporation has annual fixed costs of $800,000, variable costs of $48 per unit, and a contribution margin ratio of 40 percent.



a. Compute the unit sales price and unit contribution margin for the above product.

b. Compute the sales volume in units required for New Berlin Corporation to earn an operating income of $600,000.

c. Compute the dollar sales volume required for New Berlin Corporation to earn an operating income of $600,000.

Answers

Based on the variable costs and contribution margin, the unit sales price is $80 and the unit contribution margin is $32.

The sales volume in units needed to earn $600,000 is 43,750 units and the amount in dollar sales needed is $3,500,000.

What is the unit sales price and unit contribution margin?

The unit sales price can be found as:

= Variable cost / (1 - contribution margin ratio)

= 48 / (1 - 40%)

= $80

Unit contribution margin is:
= Selling price x Contribution margin ratio

= 80 x 40%
= $32

What is the sales volume required to earn $600,000?

In units, this amount is:
= (Fixed cost + income required) / Contribution margin

= (800,000 + 600,000) / 32

= 43,750 units

In dollar terms the amount needed is:

= Units needed x selling price

= 43,750 x 80

= $3,500,000

Find out more on contribution margin at https://brainly.com/question/24039258.

Fill in the missing numbers to complete the linear equation that gives the rule for this table.
X Y
5 -5
6 -6
7 -7
8 -8

Y=___x + ___

Answers

Answer:

y = -x +0

Step-by-step explanation:

y = mx + b

y= slope * x + y-intercept

To find slope, use any x and y pair from the table, for example (x= 5, y= -5)

slope = y/x = -5/5 = -1

y=  -x + b

To find b the y-intercept, substitute any x and y pair from the table, for example (x= 5, y= -5)

-5 = -5 +b

 b = 0

The linear equation that gives the rule for this table is

y = -x + 0 or just y = -x

taylor has saved up $300 so far and is saving $40 per week for some $900 shoes write an equation to model her savings and sketch a graph how many days will it take to save up enough money for the shoes

Answers

Answer:

the answer is 1,240

Step-by-step explanation:

you have to add them all up and you will git 1,240.hope this helps if not please let me know

Solve the system of linear equations given below using substitution or elimination.
2x + 3y = 12
3x + y = 11

Answers

Answer:

point form: (3,2), equation form: x=3, y=2

Step-by-step explanation:

Deshaun needs 3000 for a future project. He can invest 2000 now at an annual rate of 9.5%, compounded semiannually. Assuming that no withdrawals are made, how long will it take for him to have enough money for his project? Do not round any intermediate computations, and round your answer to the nearest hundredth.

Answers

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\$3000\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 9.5\%\to \frac{9.5}{100}\dotfill &0.095\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{semiannually, thus twice} \end{array}\dotfill &2\\ t=years \end{cases}[/tex]

[tex]3000=2000\left(1+\frac{0.095}{2}\right)^{2\cdot t} \implies \cfrac{3000}{2000}=1.0475^{2t}\implies \cfrac{3}{2}=1.0475^{2t} \\\\\\ \log\left( \cfrac{3}{2} \right)=\log(1.0475^{2t})\implies \log\left( \cfrac{3}{2} \right)=t\log(1.0475^{2}) \\\\\\ \cfrac{\log\left( \frac{3}{2} \right)}{\log(1.0475^{2})}=t\implies 4.37\approx t\qquad \textit{about 4 years and 4 months and a half}[/tex]

Find constants a and b such that = (axy + z3) i + (3x2 – z)j+-y)k is irrotational. Also find a scalar function Φ such that = Φ.​

Answers

Thanks for the update. "Irrotational" means curl = zero, so we compute the curl, set it equal to zero, and solve for the constants.

[tex]\vec f(x,y,z) = (axy+z^3) \, \vec\imath + (3x^2-z) \, \vec\jmath + (bz^2-y) \, \vec k[/tex]

[tex]\nabla \times \vec f(x,y,z) = \left(\dfrac{\partial(bz^2-y)}{\partial y} - \dfrac{\partial(3x^2-z)}{\partial z}\right) \, \vec\imath - \left(\dfrac{\partial(bz^2-y)}{\partial x} - \dfrac{\partial(axy+z^3)}{\partial z}\right) \, \vec\jmath \\ ~~~~~~~~~~~~ + \left(\dfrac{\partial(3x^2-z)}{\partial x} - \dfrac{\partial(axy+z^3)}{\partial y}\right) \, \vec k[/tex]

[tex]\nabla \times \vec f(x,y,z) = 3z^2 \, \vec\jmath + (6-a)x \, \vec k[/tex]

At this point, all we can conclude is that a = 6 to make the k-component vanish. Unfortunately there's no zeroing out the j-component, so the field as given is *not* irrotational.

As I mentioned in comments, if the i-component had instead been [tex]axy+bz^3[/tex], we would have ended up with

[tex]\nabla \times \vec f(x,y,z) = 3bz^2 \, \vec\jmath + (6-a)x \, \vec k[/tex]

in which case we would have b = 0.

I'll continue working with this "fixed" field to find Φ, if only to give you an idea of how to proceed. We want a scalar function Φ(x, y, z) such that the given vector field is the gradient of f. This would entail solving the partial differential equations,

[tex]\dfrac{\partial\Phi}{\partial x} = axy+bz^3 = 6xy[/tex]

[tex]\dfrac{\partial\Phi}{\partial y} = 3x^2 - z[/tex]

[tex]\dfrac{\partial\Phi}{\partial z} = bz^2-y = -y[/tex]

Let's start with the last equation. Integrating both sides with respect to z yields

[tex]\Phi(x,y,z) = \displaystyle \int (-y) \, dz = -yz + g(x,y)[/tex]

Now differentiate both sides with respect to y :

[tex]\dfrac{\partial\Phi}{\partial y} = -z + \dfrac{\partial g}{\partial y} = 3x^2 - z \implies \dfrac{\partial g}{\partial y} = 3x^2[/tex]

Integrate both sides of the latter PDE with respect to y to solve for g :

[tex]g(x,y) = \displaystyle \int 3x^2 \, dy = 3x^2y + h(x)[/tex]

Now we differentiate Φ with respect to x :

[tex]\Phi(x,y,z) = -yz + 3x^2y + h(x) \\\\ \dfrac{\partial\Phi}{\partial x} = 6xy + \dfrac{dh}{dx} = 6xy \implies \dfrac{dh}{dx} = 0[/tex]

Integrate to solve for h :

[tex]h(x) = \displaystyle \int 0 \, dx = C[/tex]

where C is an arbitrary constant.

So the scalar function whose gradient is our "fixed" field f is

[tex]\Phi(x,y,z) = -yz + 3x^2y + C[/tex]

WILL GIVE 30 POINTS AND BRAINLIEST PLS HELP


Answers

Answer:

b

Step-by-step explanation:

This a very difficult question but im pretty sure its b

A
The sides of the triangle are 5 (4^+3^2= 25, square root it to find the hypotenuse and you get 5)
In total it adds to 46

t will be awarded for all answers
1.) A catering service is making up trays of hors​ d'oeuvres. The hors​ d'oeuvres are categorized as​ inexpensive, average, and expensive. If the client must select 2 of the 6 ​inexpensive, 5 of the 7 ​average, and 3 of the 5 expensive hors​ d'oeuvres, how many different choices are​ possible?

2.)A food company is testing 5 chocolate chip​ cookies, 4 ​crackers, and 7 ​reduced-fat cookies. If it plans to market 1 of the chocolate chip​ cookies, 1 of the​ crackers, and 4 of the​ reduced-fat cookies, how many different combinations are​ possible?

from the 8 male and 8 female sales representatives for an insurance​ company, a team of 3 men and 4 women will be selected to attend a national conference on insurance fraud.
In how many ways can the team of 7 be​ selected?

Answers

Using the combination formula, it is found that the number of possible outcomes are given by:

1. 3150

2. 700.

3. 3920.

What is the combination formula?

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

Item 1:

We have combinations of 2 from 6, 5 from 7 and 3 from 5, all independent, hence we multiply them:

[tex]T = C_{6,2}C_{7,5}C_{5,3} = 15 \times 21 \times 10 = 3150[/tex]

3150 different choices are possible.

Item 2:

1 from 5, 1 from 4 and 4 from 7, hence:

[tex]T = C_{5,1}C_{4,1}C_{7,4} = 5 \times 4 \times 35 = 700[/tex]

700 different combinations are possible.

Item 3:

3 men from a set of 8, 4 women from a set of 8, hence:

[tex]T = C_{8,3}C_{8,4} = 56 \times 70 = 3920[/tex]

3920 ways to select the team of 7.

More can be learned about the combination formula at https://brainly.com/question/25821700

The school is planning to add a vegetable garden. The length of the garden is 13 feet. The width of garden is 9 feet. What is the perimeter of the garden?

I NEED THIS NOW

Answers

Answer:

44

Step-by-step explanation:

double both 13 and 9 then add the awnser together to get 44

please answer this i need help :p

Answers

Since he packed 6 orders with 7 items each, you would need to multiply 7 × 6 to get your answer.

7 × 6 = 42

So, Gordon packed 42 more items in the afternoon.


Hope this helps :)

What is x? if necessary, round to the nearest tenth.​

Answers

Answer:

x = 4

Step-by-step explanation:

I don't know I tried i just divided 3 by 3x and 12

Two of the biggest disadvantages of the corporate form of business are government regulation and corporate

Answers

One of the biggest downsides for businesses (besides government regulation) is taxes.

What are taxes?

The tax is a term to refer to a tribute that must be paid by an individual or group of people associated with a state without direct consideration.

How do taxes affect businesses?

Taxes affect companies because the state establishes some special taxes for companies to export or import their products. In some cases, they are also assigned a tax for receiving large amounts of money as profit for their services.

Learn more about taxes in: https://brainly.com/question/1362871

Answer:taxes

Step-by-step explanation:

Help pleaseeee
Which combination of three-dimensional shapes could be used to best model the table shown below?
A. 6 rectangular prisms and 1 cube
B. 4 right triangular prisms and 1 cube
C. 2 rectangular prisms and 2 right triangular prisms
D. 3 right triangular prisms and 2 rectangular prisms

Answers

Answer:

There are two rectangular prisms and two right triangular prisms

Step-by-step explanation:

The two right-angle triangular prisms can be found on the right and left. One rectangular prism can be found in the middle between those two triangular prims, and the other can be found at the top. Voila.

a persons car traveled 60 miles in 45 minutes, how many miles per hour was it traveling?

Answers

To reach 60 miles in 45 minutes you’ll have to drive 80mph

what is 2 +2 { 25 points }

1. 22
2. 4

Answers

Answer:

4

Step-by-step explanation:

if you have 2 apples and you get 2 more apples how many do you have.

Car A moves from (6,3) to (4,1). Car B starts at (3,5). Where will it move to if it uses the same translation as car A.​

Answers

Answer:

it will move from (3,5) to (1,3)

An opaque bag contains three red, two blue, and four green
marbles. What is the probability of randomly pulling out a red
marble, replacing it, then randomly drawing another red
marble?

Answers

Answer:

1/9

Step-by-step explanation:

Probability of drawing 1st red marble

No. (red) / No. (total)3 / (3 + 2 + 4)3/91/3 - P(1)

Probability of drawing 2nd red marble

It states it is replacedNumber of red is same as the beginning and total number is sameP(2) = P(1)1/3 - P(2)

Probability

P(1) x P(2)1/3 x 1/3P = 1/9

Robert wants to make a small batch of japchae. He needs
4 1/6 oz of noodles. His scale shows he has 4.18 oz of noodles. Does Robert have enough noodles? How do you know?

Answers

Comparing the measurement needed for the batch and the measurement of the scale, Robert does not have enough noodles.

What are fractions and decimals?

A fraction is a non-integer. It is made up of numerators and denominators. A decimal is a non-integer where the integers are differeniated from a non-integer by a decimal point.

Does Robert have enough noodles?

In order to determine the answer, convert the fraction to a decimal by dividing the numerator by the denominator.

4 1/6 = 4. 17

To learn more about fractions, please check: brainly.com/question/1114498

Does anyone know how to Simplify: 8-2

Answers

Answer: 6

Step-by-step explanation: simplify is basically solving........

In 1977, the price of a scientific
calculator was $175. In 2004, the
price was $15. Assuming the change
in price was linear, what was the
approximate price of a scientific
calculator in 1998?

Answers

First, we need to find how many years are in between 1977 and 2004:
2004-1977 = 27

And the different between the prices:
175-15 = $160

Since this is supposed to be linear, we can do 160/27 which is about 5.925.

We can round this out to be about $6 cheaper per year, or $5.90.

The sum of three consecutive number is forty two what are the numbers

Answers

Answer:

Thus, 12+14+16=42.

Step-by-step explanation:

Hope this helps.

sally was playing checkers with a friend. The ratio of games sally won to lost was 9 : 5 if sally won 36 games, how many games did her friend win?

Answers

Answer:

20

Step-by-step explanation:

36/9 = 4

4x5= 20

the perimeter of a regular triangle is 81cm. what is the length of one side​

Answers

Answer:

27 cm.

Step-by-step explanation:

As there are 3 sides in a triangle and this is regular , the length of one side

= 81/3

= 27 cm

Matthew is at the beach with is family, Housing a rectangular prism shaped container to mold sand for his sandcastle. The container has the following dimensions. 12 in. by in. by in.
a)Matthew noticed that the container was one fourth full of sand. How many more cubic inches of sand would be required to fill the container ? Show your work.
b) Matthew's father has a container that has dimensions that are each double the dimensions of Mathew's container.Matthew thought that the volume would be also double. Is Matthews correct? How many times greater is the volume of the larger container the the volume of the smaller one? Show your work and explain the reasoning. Can someone help ? thanks

Answers

When Matthew noticed that the container was one fourth full of sand, the remaining volume quantity needed is 432 inches³.

How to calculate the volume?

The container has the following dimensions. 12 in. by 8in. by 6in. Therefore, the volume will be:

= 12 × 8 × 6

= 576 inches.

Since Matthew noticed that the container was one fourth full of sand, the remaining quantity needed will be:

= 576 - (1/4 × 576)

= 576 - 144

= 432 inches³.

Learn more about volume on:

https://brainly.com/question/12410983

9-9/9+9-9/9=?
I have hard time with math :(

Answers

Answer:

16

Step-by-step explanation:

well, if you remember P.E.M.D.A.S, which is the order for doing equations, the first two dont matter, but from M for Multiplication, D for Division, A for addition, and finally S for Subtraction, those are the ones that you need here. So you divide the 9s first giving you 9-1+9-1=8+8=16.

Karen surveyed students in one middle school about their favorite band. Of the 1,156 students in the middle school, 65 sixth-grade students were surveyed. More than half of the 65 students said their favorite band is Rhonda and the Gees. Based on the survey, Karen says most middle school students’ favorite band is Rhonda and the Gees. Why is Karen’s statement incorrect? *

(A)Karen surveyed too many students.
(B)Karen’s survey sample was too small.
(C)Karen did not survey any high school students.
(D)Karen did not include enough bands in the survey.

Answers

I believe the answer is B.



Explanation: In the problem, it states that “Karen says MOST middle school students’ favorite band is Rhonda and the Gees.” Pay attention to the keyword, most. Only 65 students like Rhonda and the Gees, so it is too small to represent a middle school of 1,156. So, therefore, the answer should be B.
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