Find the volume of a cube with a side length of 2.8 in, to the nearest tenth of a cubic inch (if necessary).

Answers

Answer 1

Given:

Length of side = 2.8 in

Let's find the volume of the cube.

To find the volume of a cube, apply the formula:

[tex]V=a^3[/tex]

Where:

a is the side length = 2.8 in

Hence, to find the volume, we have:

[tex]\begin{gathered} V=2.8^3 \\ \\ V=2.8*2.8*2.8 \\ \\ V=21.952\approx22.0\text{ in}^3 \end{gathered}[/tex]

Therefore, the volume of the cube is 22.0 cubic inch.

ANSWER:

22.0 in³


Related Questions

Pizza House offers 4 different salads, 5 different kinds of pizza, and 3 different desserts. How many different three course meals can be ordered?...Question content area rightPart 1How many different meals can be ordered?enter your response here

Answers

A three-course meal will contain 1 pizza, 1 salad, and 1 dessert.

The question tells us that there are 4 different salads, 5 different pizzas, and 3 different desserts.

Therefore, the total number of possible ways a three-course meal can be served is calculated as the product of all the numbers. This is shown below:

[tex]\Rightarrow4\times5\times3=60[/tex]

60 different meals can be ordered.

Carla has a music box that has a base area of 9 1/2 in² and a height of 3 1/5 inches.What is the volume of the music box?

Answers

Given in the question:

a.) Base area of music box = 9 1/2 in²

b.) Height of music box = 3 1/5 in.

Let's recall the formula for getting the volume of a rectangular prism:

[tex]\text{ Volume = Length x Width x Height or Base Area x Height}[/tex]

Before we plug in the values, let's first transform the mixed numbers into improper fractions.

[tex]\text{ 9 }\frac{1}{2}\text{ = }\frac{1\text{ + (2 x 9)}}{2}\text{ = }\frac{1\text{ + 18}}{2}\text{ = }\frac{19}{2}[/tex][tex]\text{ 3 }\frac{1}{5}\text{ = }\frac{1\text{ + (3 x 5)}}{5}\text{ = }\frac{1\text{ + 15}}{5}\text{ = }\frac{16}{5}[/tex]

Let's now plug in the values to get the volume of the music box.

[tex]\text{ Volume = Base Area x Height}[/tex][tex]=\text{ 9 }\frac{1}{2}\text{ x 3 }\frac{1}{5}\text{ = }\frac{19}{2}\text{ x }\frac{16}{5}\text{ = }\frac{304}{10}\text{ }[/tex][tex]\frac{304}{10}\text{ = }\frac{\frac{304}{2}}{\frac{10}{2}}=\frac{152}{5}\text{ or 30 }\frac{2}{5\text{ }}in.^3[/tex]

Therefore, the volume of the music box is 30 2/5 in.^3.

Find the solution of this system of linearequations. Separate the x- and y- values with acomma. Enclose them in a pair of parantheses. System of equations4x + 8y = 838x + 7y = 76- 8x - 16y = -1668x + 7y = 76

Answers

Given,

System of equation is,

[tex]\begin{gathered} 4x+8y=83\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots(i) \\ 8x+7y=76\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots(ii) \end{gathered}[/tex]

Taking the equation (i) as,

[tex]\begin{gathered} 4x+8y=83 \\ 4x=83-8y \\ x=\frac{83-8y}{4} \end{gathered}[/tex]

Substituting the value of x in equation (ii) then,

[tex]\begin{gathered} 8x+7y=76 \\ 8(\frac{83-8y}{4})+7y=76 \\ 664-64y+28y=304 \\ 36y=360 \\ y=10 \end{gathered}[/tex]

Substituting the value of y in above equation then,

[tex]\begin{gathered} x=\frac{83-8\times10}{4} \\ x=\frac{3}{4} \end{gathered}[/tex]

Hence, the value of x is 3/4 and y is 10. (3/4, 10)

System of equation is,

[tex]\begin{gathered} -8x-16y=-166\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots(i) \\ 8x+7y=76\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots(ii) \end{gathered}[/tex]

Taking the equation (i) as,

[tex]\begin{gathered} -8x-16y=-166 \\ 8x+16y=166 \\ 4x+8y=83 \\ 4x=83-8y \\ x=\frac{83-8y}{4} \end{gathered}[/tex]

Substituting the value of x in equation (ii) then,

[tex]\begin{gathered} 8x+7y=76 \\ 8(\frac{83-8y}{4})+7y=76 \\ 664-64y+28y=304 \\ 36y=360 \\ y=10 \end{gathered}[/tex]

Substituting the value of y in above equation then,

[tex]\begin{gathered} x=\frac{83-8\times10}{4} \\ x=\frac{3}{4} \end{gathered}[/tex]

Hence, the value of x is 3/4 and y is 10. (3/4, 10)

y+2=−3(x−4)y, plus, 2, equals, minus, 3, left parenthesis, x, minus, 4, right parenthesis Complete the missing value in the solution to the equation.

Answers

The required equation is 11y = 3x + 2.

What is equation?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.

Given y+2=−3(x−4)y  .....................(1)

Simplifying (1) and we get

y+2=−3x + 12y

=> 3x + y - 12y + 2 = 0

=> 3x -11y + 2 = 0

=> 3x - 11y = -2

=> 11y - 3x = 2

=> 11y = 3x + 2

Therefore, the required equation is 11y = 3x + 2.

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#8 help with algebra 2 question. That’s the only picture I have. I tried writing it out.

Answers

Solution:

Given a cosine function graph;

The general cosine function is

[tex]y=A\cos(Bx-C)+D[/tex]

Where

[tex]\begin{gathered} A\text{ is the amplitude} \\ Period=\frac{2\pi}{B} \\ C\text{ is the phase shift} \\ D\text{ is the vertical shift} \end{gathered}[/tex]

From the graph,

The midline is y = 1

The amplitude, A, is

[tex]\begin{gathered} A=4-1=3 \\ A=3 \end{gathered}[/tex]

The amplitude, A is 3

Where,

[tex]\begin{gathered} Period=12 \\ Period=\frac{2\pi}{B} \\ 12=\frac{2\pi}{B} \\ Crossmultiply \\ 12B=2\pi \\ Duvide\text{ both sides by 12} \\ \frac{12B}{12}=\frac{2\pi}{12} \\ B=\frac{\pi}{6} \end{gathered}[/tex]

The phase shift, C = 0, and the vertical, D, is 1

Thus, the equation of the graph is

[tex]\begin{gathered} y=A\cos(Bx-C)+D \\ Where \\ A=3 \\ B=\frac{\pi}{6} \\ C=0 \\ D=1 \\ y=3\cos(\frac{\pi}{6}x)+1 \end{gathered}[/tex]

The graph is shown below

Hence, the equation is

[tex]y=3\cos(\frac{\pi}{6}x)+1[/tex]

Use the given rounded values, the properties of logsand your knowledge of logarithmic functions to find thevalue of each log expression. Show your work.

Answers

We want to find the value for

[tex]\log _425[/tex]

To do that, first let's rewrite this expression as

[tex]\log _425=\log _45^2[/tex]

Using the following property

[tex]\log _ab^c=c\log _ab[/tex]

We can rewrite our expression as

[tex]\log _45^2=2\log _45[/tex]

Using the given value on the text, we get our answer

[tex]\log _425=2\log _45=2\cdot1.2=2.4[/tex]

40.0 Reyna runs a textile company that manufactures T-shirts. The profit, p, made by the company is modeled by the function p=s2+95-142, where s is the number of T-shirts sold. How many T-shirts should be sold to earn a profit of more than $2,000?

Answers

[tex]\begin{gathered} p=s^2+9s-142 \\ \text{ Substiyute }p\text{ = 2000 into the equation above} \end{gathered}[/tex][tex]\begin{gathered} 2000=s^2+9s-142 \\ s^2+9s-142-2000=0 \\ s^2+9s-2142=0 \\ =s^2+51s-42s-2142=0 \\ =s(s+51)-42(s+51)=0 \\ =(s+51)(s-42)=0 \\ s+51=0\text{ or s-42=0} \\ s=-51\text{ or s = 42} \end{gathered}[/tex]

But cannot be negative, hence s= 42. This implies that 42 shirts will be sold to make a profit of exactly $2000.

To earn a profit of more than $2000, then s must be greater than 42

This makes the answer to be s > 42

The correct answer is the second option

HELP ASAP MATH PRE CALC

Answers

The values for the dimensions of the open box are L = (30 - x)inches, W = (30 - x)inches, and H = (x)inches.

The cube as a three dimensional shapes.

A cube is 3- dimensional shape with 6 equal sides, 6 faces, and 6 vertices. Each face of a cube is a square. In there dimension, the cube's sides are; the L = length, W = width, and H = height.

From question, squares of equal sides x are cut out of each corner of the metal sheet, hence the dimension for the height of the box is equal to x.

So; H = (x) inches,

L = (30 - x)inches, and

W = (30 - x)inches.

Therefore, the dimensions of the box that can maximize the volume of the metal sheet of 30inches by 30inches are L = (30 - x)inches, W = (30 - x)inches, and H = (x)inches.

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in two or more complete sentences, compare the slopes of the two functions. in your comparison, include which function has the greatest slope.

Answers

Slope of g (x) : ZERO. The slope of any horizontal line is zero, 0.

Slope of f (x) :

let's take the points ( -4, 7) and (-2, 5) from the table

[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{5-7}{-2-(-4)}=\frac{-2}{-2+4}=\frac{-2}{2}=-1[/tex]

Answer: The slope of g (x ) is zero since it is a horizontal line while the slope of f (x) is -1. The slope of g(x) i greater than the slope of f(x).

Please help, will give brainliest!!!!
i am asked to find the range of this, (of the possible third angle)

Answers

Answer:

rage=<C-<B

=101°-70°

=30°

1
Pratap Puri rowed 26 miles down a river in 2 hours, but the return trip took him 6; hours. Find the rate Pratap can row
in still water and find the rate of the current. Let x=rate Pratap can row in still water and y = rate of the current.
What is the rate that Pratap rows in still water?
Pratap can row at a rate of
(Type an integer or a decimal.)
in still water.

Answers

The speed of current will be "4.5 mph" and the rate Pratap can row in still water will be "8.5 mph".

What does "speed" mean in mathematics?

Speed is what it means. the speed of a change in an object's location in any direction. Speed is defined as the ratio of distance to the amount of time it took to cover that distance. Speed is a scalar quantity because it just has a direction and no magnitude.

Given:

Distance "26 miles" in time "2 hours".

Let,

Speed of water = y

Pratap speed when rowing in still water = x

As we know,

      Speed = distance/time

then,

  x + y = 26/2

  x + y = 13

 x = 13 - y

In return trip took him time "6.5 hours",

       x - y = 26/6.5

      x - y = 4

By substituting the value of "x", we get

 13 - y - y = 4

  13 - 2y = 4

     2y = 13 - 4

        2y = 9

          y = 9/4 = 4.5 mph (Rate of the current)

By substituting the value of "y", we get

    x = 13 - a

   x = 13 - 4. 5 = 8.5 mph (Pratap can row in still water)

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Which equation could be represented by the number line? O A. -5 + 7 = 2 O.B. -3+(-4)= -7 O C. 4+ (-7)=-3 O D.7+(-6) = 1 SURAT E PREVIOUS

Answers

C. 4 + (-7) = -3

C. 4 + (-7) = -3 could represent by the number line because no other equation has reflected the lines' displacement of 7 grid from a certain point going to the left which is equivalent to -7.

The rest of the choices is not a possible equation to the line.

A. -5 + 7 = Displacement of 7 Grid to the Right from Point -5

B. -3 - 4 = Displacement of 4 Grid to the Left from Point -3

D. 7 - 6 = Displacement of 6 Grid to the Left from Point 7

Forproblems 5-10, determine what type of symmetry each figure has. If the figure has line symmetry, determine how many lines of symmetry the figure has. If the figure has rotational symmetry, determine the angle of rotational symmetry and if the figure also has point symmetry. (A figure can have both line and rotational symmetries or neither of these symmetries)

Answers

7. The figure has line and rotational symmetries. There are 2 lines of symmetry. The angle of symmetry is 180°

8. The figure has no symmetry

How to graph this and how to solve the equation

Answers

SOLUTION:

Step 1:

In this question, we are given the following:

Step 2:

The details of the solution are as follows:

The graphs of the two equations:

[tex]\begin{gathered} y=\text{ }\frac{-1}{5}x\text{ - 6} \\ y=\text{ }\frac{3x}{5}-\text{ 2} \end{gathered}[/tex]

is as follows:

CONCLUSION:

From the graphs above, we can see that the solution to the graphs is:

[tex](x,\text{ y \rparen = \lparen - 5, - 5\rparen}[/tex]

Help meeeeeeeee
ASAP

Deena works at a customer service call center. She fields an average of 7 calls per hour. Employees are encouraged to field more than 280 calls per week. Deena has already fielded 112 calls this week.


How many more hours, x, does Deena need to work this week to reach the weekly goal of fielded calls if she continutes to field an average of 7 calls per hour? Select the inequality that includes the fewest number of hours Deena can work this week and still reach the weekly goal.

A.

x > 24


B.

x > 40


C.

x > 3


D.

x > 31

Answers

Send a picture of x = -6

Allen's goal is to have between 1,500 and 1,600 bottles in his collection. Write and solve a compound inequality to determine the number of weeks it will take Allen to reach his goal.

Answers

The compound inequality is 1500 < 300 + 25x < 1600, the solution is 48 < x < 52 and the number of weeks to reach his goal 48 to 52 weeks

How to determine the compound inequality?

The given parameters from the question are

Existing collection = 300

Rate = 25 bottles each week

Represent the number of weeks by x and the total number of bottles with y

So, we have the following equation

y = Existing collection + Rate * x

This gives

y = 300 + 25x

Also, we have

The goal is to have between 1,500 and 1,600 bottles in his collection.

This means that

1500 < Total < 1600

So, we have

1500 < 300 + 25x < 1600

Evaluate the like terms

1200 < 25x < 1300

Divide by 25

48 < x < 52

Hence, the number of weeks is 48 to 52 weeks

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Possible question

Allen wants to add to his existing collection of 300 bottles. Starting today, he will collect 25 bottles each week.

Allen's goal is to have between 1,500 and 1,600 bottles in his collection. Write and solve a compound inequality to determine the number of weeks it will take Allen to reach his goal.

H.O.T. FOCUS ON HIGHER ORDER THINKING 20. Communicate Mathematical Ideas Explain how to graph the inequality 8≥ y.

Answers

Given the inequality:

8 ≥ y

Let's graph the inequality.

To graph the inequality, take the following steps:

Step 1.

Rewrite the inequality for y and slip the inequality.

[tex]y\le8[/tex]

Step 2.

Draw a solid horizontal line at y = 8.

Since the y is less than or equal to 8, shade the region below the boundary line.

Thus, we have the graph of the inequality below:

divide the sum of z and 3 by 7

Answers

Answer:

4 divide the sum of z and 3 by 7

Step-by-step explanation:

z+3=7

or,z=7-3

or,z=4

A number between 280 and 380 when rounded to the nearest hundred is 45 less than the original number what number is the original number

Answers

If the unknown number is an integer between 280 and 349;

When rounded to the nearest hundred, the unknown number is 300.

If the unknown number is an integer from 350-380;

When rounded to the nearest hundred, the unknown number is 400.

If the approximation is 45 less than the original number, thus it cant be in the range of 350-380.

But;

[tex]300+45=345[/tex]

When 345 is rounded to the nearest hundred, it is 300.

And the difference between the approximated value and the original value is 45.

Hence, 345 is the original number.

CORRECT ANSWER: 345

sketch the graph of and identify the axis of symmetry

Answers

Given the following equation:

[tex]y=(x-1)^2+2[/tex]

We will sketch the graph and identify the axis of symmetry.

the given function is a quadratic function with a vertex at (1, 2)

the graph of the function will be as follows:

As shown, the graph of the function has an axis of symmetry at x = 1

So, the answer will be option 3) x = 1

translate the inequality into a sentence. ten subtracted from the product of 9 and a number is at most -17. use x for unknown number

Answers

[tex]9x-10\le-17[/tex]

find the measure of each segment

Answers

The value of each line segment is found as 26 units.

What is defined as the mid point?A midpoint is a point in the center of a line connecting two points. The two points of reference are the line's endpoints, and the midpoint is located between the two. The midpoint splits the line connecting such two points in half. Furthermore, a line drawn to bisect the line connecting these two points passes through midpoint.

For the given question.

The line is given as DE and the mid point of line is D.

Thus,

CD = DE   .....eq 1

The value of each term are given as;

CD = 2x + 7

DE = 4(x - 3)

Put the value in equation 1.

2x + 7 = 4(x - 3)

2x + 7 = 4x - 12

Bring variables and constants on the different sides.

4x - 2x = 7 + 12

2x = 19

x = 9.5

Put the value in each side;

CD = 2×9.5 + 7 = 26 unitsDE = 4(9.5 - 3) = 26 units

Thus, the value of each line segment is found as 26 units.

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The 3D object above is sliced parallel to the base. What shape is formed? triangle octagon rectangle hexagon

Answers

When a 3D object is sliced such that the top is parallel to the base, then the top and the base formed same shape.

The shape formed at the base;

It is a six-sided shape. A six-sided polygon is called HEXAGON

What are the solutions to the equation (x − 21)2 = 25?x= x=

Answers

SOLUTION:

Case: Quadratics equation

Method:

[tex]\begin{gathered} (x-21)^2=25 \\ TakeSquarerootsOfBothSides \\ x-21=\sqrt{25} \\ x-21=\pm5 \\ x=21\pm5 \\ x=21+5\text{ }or\text{ }x=21-5 \\ x=26\text{ }or\text{ }x=16 \end{gathered}[/tex]

Final answer:

x= 16

x= 26

1. Write the value of the digit in the hundreds place and the value of the digit in the tens place in 440. What is the relationship between the values of those two digits? The ___ in the in the hundreds place has a value _____ times as great as the____in the ____ place.

Answers

The ___ in the in the hundreds place has a value _____ times as great as the____in the ____ place.​

• We have 440

,

• 400 + 40

,

• Four hundreds + four tens

The relationship between the values of these two digits is that they are the same, but the four in the hundreds place has a value ten times as great as the four in the tens place.

The graph of F(x), shown below, resembles the graph of G(x) = x^2 but it hasbeen stretched somewhat and shifted. Which of the following could be theequation of F(x)?

Answers

Solution

The final answer

Option C

kindly asking for help to clarify this question and mathematical problem .

Answers

As you can see the options A and B are decreasing, D is constant, therefore, the only increasing relationship is the option C

a) Reflection, then translationb) Rotation, then translationc) Reflection, then rotationd) Rotation, then reflection

Answers

We have the following:

Therefore we can conclude that from step 1 to step 2, it is a rotation because it moves on its own axis and from step 2 to 3, it is a reflection

Alan is putting money into a savings account. He starts with $550 in the savings account, and each week he had $70. Let S represent the total amount of money in the savings account in dollars, and let W represent the number of weeks Allen has been adding money. Write an equation relating S to W. Then use this equation to find the total amount of money in the savings account after 18 weeks.

Answers

Equation: S = $70·W + $550

Amount of manoey after 18 weeks: $1810

To solve this, we have two variables, the amount of weeks (W) and savings (S)

Each week, $70 dolars are added to the account. Then we can write this as: $70·W.

Now there is an initial amount of $550. Then we must add that mount to the previous calculation: $70·W + $550

This give us the savings on each week. THen THe complete equation is S = $70·W + $550

Now, to know the savings after 18 weeks, we can replace W = 18 and solve:

[tex]\begin{gathered} S=$70\cdot W+$550 \\ S=70\cdot18+550 \\ S=1260+550=1810 \end{gathered}[/tex]

Thus, the savings after 18 weeks is $1810

[tex]3 - \frac{1}{2} = 3 + n[/tex]what is nthank you

Answers

[tex]\begin{gathered} 3-\frac{1}{2}=3+n\text{ } \\ -\frac{1}{2}=3-3+n\text{ (Subtracting 3 from both sides of the equation)} \\ -\frac{1}{2}=n\text{ (Subtracting)} \\ \text{The answer is }-\frac{1}{2} \end{gathered}[/tex]

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