How many cubic feet of dirt are there in a hole that is 3’ deep x 3’ wide x 3’ long? 0?

Answers

Answer 1

the volume of the hole would be  3*3*3 = 27 cubic feet.

 however since it is a hole, there is nothing in it.


Related Questions

If the x-axis is Quantity and the y-axis is Price, which of the following is the best summarization of the supply shift from S1 to S2?
A)The supply decreased.
B) The supply stayed the same.
C) The supply increased.
D) The supply outweighed demand.

Answers

Line S1 and S2 are parallel and that shows that the rate of change in price to change in quantity stays the same. This means that the supply stays the same.


Correct answer: B

Answer:

Option B is correct.

Step-by-step explanation:

We have been given x-axis representing quantity

And y-axis representing price

S1 and S2 are supply

So, these two supply have parallel lines which means they will never intersect they will remain same throughout the domain.

Therefore, the supply stayed the same.

Option B is correct.

A cylindrical tank standing upright (with one circular base on the ground) has a radius of 1212 cm for the base. how fast does the water level in the tank drop when the water is being drained at 2323 cm33/sec? note that the volume of a cylinder is v=πr2hv=πr2h where rr is the radius of the base and hh is the height of the cylinder.

Answers

To find the rate of change of height with respect to time, we use the formula dh/dt = dV/dt / (πr²) and substitute the given values for the rate of volume change and the radius.

We have the rate of volume change as 23 cm³/sec and the cylinder has a radius of 12 cm. Note that the typo '2323 cm³/sec' and '1212 cm' should be read as '23 cm³/sec' and '12 cm,' respectively.

The volume of a cylinder is given by the formula V = πr²h, where V is the volume, r is the radius, and h is the height. To find the rate at which the height h changes over time, we can take the derivative of the volume with respect to time, which gives us dV/dt = πr² dh/dt. We can solve this equation for dh/dt (the rate of change of height with respect to time) by dividing both sides by πr² and substituting the given values. Therefore, dh/dt = dV/dt / (πr²).

Substituting the values, we get:

dh/dt = 23 cm³/sec / (π * (12 cm)²)

Upon simplifying, we will obtain the rate at which the height of the water is decreasing in cm/sec.

How would you represent 4 eighth notes as a fraction?

Answers

It would be 4/8 which is 1/2
 it would have to be either 4/8 or 1/2. 4 eighth notes are 1/8 times 4 which is 4/8 but simplified it can be 1/2

what is the solution to 2sin^(2)x+sinx+1=0
a. 30 deg
b.150 deg
c.240 deg
d. 270 deg
e. 330 deg

Answers

well you can try rewriting it to this

answer is   d  270

first start of by factoring  and subtracting the 1 into the right side

sin(x)  ( 2 sin (x)  + 1)  = -1  

set each one equal to -1 

sin( x) = -1   and   2 sin (x) +1 =  -1 

                              2 sin (x) = -2
                               sin ( x) = -1 
so therefore we have our final equation

sin ( x )  = - 1  and sin (x) = -1 

so then you look in your unit circle and find what coordinate equals -1 in terms of sin x 

A sixteen-sided number cube has the numbers 1 through 16 on each face. each face is equally likely to show after a roll. what is the probability that you will roll an even number or an odd prime number? round to the nearest thousandth.
a. 0.063
b. 0.813
c. 0.219
d. 0.875

Answers

P(even number) = 8/16 = 1/2...sample space is 16, there are 8 even numbers (2,4,6,8,10,12,14,16)
P (odd prime number) = 5/16...sample space is 16, there are 5 odd primes (3,5,7,11,13)

P (both) = 1/2 + 5/16 = 8/16 + 5/16 = 13/16 = 0.8125 rounds to 0.813

Answer:

B. 0.813

Step-by-step explanation:

A sixteen-sided number cube has the numbers 1 through 16 on each face.

So, [tex]|\ S\ |=16[/tex]

Let us assume that, A be the event that the number will be an even number. So,

[tex]A=\left \{ 2,4,6,8,10,12,14,16 \right \}[/tex] and [tex]|\ A\ |=8[/tex]

Then,

[tex]P(A)=\dfrac{|\ A\ |}{|\ S\ |}=\dfrac{8}{16}[/tex]

Let us assume that, B be the event that the number will be an odd prime number.

[tex]B=\left \{3,5,7,11,13 \right \}[/tex] and [tex]|\ B\ |=5[/tex]

Then,

[tex]P(B)=\dfrac{|\ B\ |}{|\ S\ |}=\dfrac{5}{16}[/tex]

So the probability that you will roll an even number or an odd prime number will be,

[tex]P(A\cup B)=P(A)+P(B)-P(A\cup B)[/tex]

[tex]=\dfrac{8}{16}+\dfrac{5}{16}-0[/tex] ( as independent events)

[tex]=\dfrac{13}{16}[/tex]

[tex]=0.813[/tex]


The absolute value function g(x) = |x + 7| − 4 is translated 5 units right and 2 units up to become g′(x). The quadratic function f(x), graphed below, is also moved 5 units right and 2 units up to become f′(x). Which of these two transformed functions has a range of y ≤ −2 and what is the vertex of this transformed function?

 g′(x) has a range of y ≤ −2 and its vertex is at (−2, −2).
 g′(x) has a range of y ≤ −2 and its vertex is at (2, −2).
 f′(x) has a range of y ≤ −2 and its vertex is at (3, −2).
 f′(x) has a range of y ≤ −2 and its vertex is at (−7, −6).

Answers

I think its C, if I'm being quite honest its kind of confusing for me too. Sorry
The correct answer is C. 

FIND THE MISSING VALUE. SHOW YOUR WORK.

Answers

c:

 to find x multiply the side (24) by the tangent of the angle(13)

 so 24 * tan(13) = 5.5408

D:

 to find x

 divide the side (10) by the sin of the angle (20)

10/sin(20) = 29.238


 Round the answers as needed.

What is the intersection of this sphere with the yz-plane? find an equation of the sphere with center (−3, 2, 9) and radius 6?

Answers

The equation of a sphere with center (a, b, c) and radius r is given by :

[tex] (x-a)^{2} + (y-b)^{2} + (z-c)^{2} = r^{2} [/tex], 

so the equation of the sphere with center (-3, 2, 9) and radius 6 is :

[tex](x-(-3))^{2} + (y-2)^{2} + (z-9)^{2} = 6^{2} [/tex]

[tex](x+3)^{2} + (y-2)^{2} + (z-9)^{2} = 36[/tex]


The yz plane is the set of all points (0, y, z), that is x is always 0.

For x=0, the plane

[tex](x+3)^{2} + (y-2)^{2} + (z-9)^{2} = 36[/tex]

becomes 

[tex](0+3)^{2} + (y-2)^{2} + (z-9)^{2} = 36[/tex]

[tex](y-2)^{2} + (z-9)^{2}=36-9=25= 5^{2} [/tex]

[tex](y-2)^{2} + (z-9)^{2}=5^{2} [/tex]

This is the circle with center (y, z)=(2, 9) and radius 5.
Final answer:

The equation of the sphere with center (-3, 2, 9) and radius 6 is (x + 3)² + (y - 2)² + (z - 9)² = 6². The intersection of this sphere with the yz-plane is described by the equation (y - 2)² + (z - 9)² = 27.

Explanation:

The equation of a sphere with center (-3, 2, 9) and radius 6 is given by:

(x + 3)² + (y - 2)²+ (z - 9)² = 6²

To find the intersection of this sphere with the yz-plane, we need to set x = 0 in the equation:

(0 + 3)² + (y - 2)² + (z - 9)² = 6²

Simplifying this equation gives:

(y - 2)² + (z - 9)² = 27

So, the intersection of the sphere with the yz-plane is described by the equation (y - 2)² + (z - 9)² = 27.

(HELP ASAP) Kite EFGH is inscribed in a rectangle where F and H are midpoints of parallel sides.

The area of EFGH is 35 square units. What is the value of x?

4 units
5 units
6 units
7 units

Answers

Let's say that FH and EG intersection is O,
So we have the following:
OF = 2
OH = 5

Just because F and H are midpoints it means that EO = OG = x
And as it's given the area S=35

On the other hand
S = OF*OG/2 + OG*OH/2 + OH*OE/2 + OE*OF/2 = 2*x/2 + x*5/2 + 5*x/2 + x*2/2 = 2*x + 5*x = 7*x = 35

7x = 35 so x = 35/7 = 5

Answer: 5 units

The answer is 5 units on e2020.

Tom is showing his work in simplifying (5.2 – 8.5) – 0.5 + 6.8. In which step did Tom make an error? Step 1:: (5.2 – 8.5) – 0.5 + 6.8 Step 2: 5.2 + (–8.5 – 0.5) + 6.8 (distributive property) Step 3: 5.2 – 9 + 6.8 Step 4: 5.2 + 6.8 – 9 (commutative property) Step 5: 12 – 9 = 3 Step 2; he wrote distributive instead of commutative Step 2; he wrote distributive instead of associative Step 4; he wrote commutative instead of associative Step 4; he wrote commutative instead of distributive

Answers

(5.2 – 8.5) – 0.5 + 6.8. In which step did

Step 1:: (5.2 – 8.5) – 0.5 + 6.8

Step 2: 5.2 + (–8.5 – 0.5) + 6.8 (distributive property)

Wrong this is associative property, because he just ragrouped the terms.

Step 3: 5.2 – 9 + 6.8

Step 4: 5.2 + 6.8 – 9 (commutative property)

Right because he just switched places

Step 5: 12 – 9 = 3

Answer: Step 2; he wrote distributive instead of associative
 

Answer:

B

Step-by-step explanation:

Step 2 he wrote distributive instead of associative

Transform both equations in each system of equations so that each coefficient is an integer.

***I also need it to be solved using substitution method.

Answers

For the first one multiply each term by the LCM of 4 and 6, which is 12:-

15x -36 = 2y..................(1)

and second multiply by 5:-

2x + y = 9..............(2)

solving:-
from equation (2) y = 9-2x,  substitute  in equation (1):-

15x - 36 = 2(9-2x) = 18 - 4x
19x = 54
x = 54/19 = 2.84

so y =  9 - 2(2.84) = 3.32


Julio has started his very own floral business. He sells centerpieces for $19.50 each. His fixed costs are $500 per month, and each centerpiece cost $8 to produce. What is your break-even point? a. Julio must sell approximately 18 centerpieces to break even. b. Julio must sell approximately 23 centerpieces to break even. c. Julio must sell approximately 44 centerpieces to break even. d. Julio must sell approximately 55 centerpieces to break even.

Answers

500= (19.50-8.00)x

500 = 11.50x

x=500/11.50=43.48

 so he needs to sell approximately 44 centerpieces to break even

19.50x - 8x-500 = 0
Solve for x
19.50x - 8x=500
11.5x=500
X=500/11.5
X=43.48

The answer is
c. Julio must sell approximately 44 centerpieces to break even.

△LMN, with vertices L(2,2), M(3,5), and N(6,1), is rotated 90° about the origin. What is the location of M′?

Answers

The rotation of triangle LMN 90° about the origin is shown in the diagram below. 

The coordinate of M' is (5, -3)

If one u.s. dollars equals 5.76 egyptian pounds and one u.s. dollar equals 0.56 british pound, how many egyptian pound equal one british pound?

Answers

The task is to calculate the ratio of exchange rates. We must carefully write the equation.Let's write the equation.
0,56 p=1s=5,76 e
So 
0,56 p=5,76 eWe have to show how much the Egyptian pound was equal to one British pound.
This means that we must obtain the equation 1p=.....
Of 0.56=56/100.56/100 multiply by 100/56 get 1.Multiply both parts of equation by 100/56
1 pound =10.2857 of egyptian pound.

The roof of a house is being reconstructed to accommodate heavy snows. the current 32 foot roofline makes an 18.2° angle with the horizontal. the owner has decided to construct the new roof so that it makes a 50° with the horizontal as shown below. what will be the length of the new roofline?

Answers

Final answer:

To find the length of the new roofline, we can use the tangent function. The length is approximately 26.9 feet.

Explanation:

To find the length of the new roofline, we can use the trigonometric function tangent. Let's call the length of the new roofline 'x'. The tangent of an angle is equal to the opposite side divided by the adjacent side. In this case, the opposite side is the height of the roofline, which is 32 feet, and the adjacent side is the horizontal distance, which is 'x' feet. So, we can set up the equation:

tan(50°) = 32/x

To solve for 'x', we can multiply both sides of the equation by 'x' and then divide both sides by tan(50°). This gives us:

x = 32/tan(50°)

Using a calculator, we can find that tan(50°) ≈ 1.1917. So, substituting this value into the equation, we get:

x ≈ 32/1.1917

By calculating this, we find that the length of the new roofline is approximately 26.9 feet.

Jenna surveyed the students at her dance class to find out if they like salsa and/or ballet. The results of her survey are shown in the two-way table below:









Like Salsa


Do Not Like Salsa


Total




Like Ballet

32

42

74



Do Not Like Ballet

22

4

26



Total

54

46

100



If a student does not like ballet, what is the probability that student also does not like salsa?
8.7%
15.4%
18.2%
84.6%

Answers

                                  like salsa              hate salsa               total
like ballet                       32                         42                          74  
hate ballet                      22                           4                          26
total                                54                         46                         100

if a student does not like ballet (there is 26 that do not like ballet)..what is the probability that the student does not like salsa..of those 26 that do not like ballet, 4 do not like salsa...
4/26 = 0.1538 = 15.38% rounds to 15.4% <=


The answer is 15.4 because the student who don't like ballet and don't like salsa is 4 divided by the total which is 26.

Choose a number. add 5. multiply by -4. subtract 3. for each starting number what is your ending number ?

Answers

Well I'd assume you mean this:


If I choose 20

20+5x(-4)-3
5x-4 =-20

20 +(-20) - 3

0-3 is -3 

and so on

An airplane pilot over the Pacific sights an atoll at an angle of depression of 5. At this time, the horizontal distance from the airplane to the atoll is 4629 meters. What is the height of the plane to the nearest meter?


A. 403 m
B. 405 m
C. 4611 m
D. 4647 m

Answers

b) 405 m
tan(5) = x/4629
4629tan(5) = 404.9
Round up
x=405 m

Rounded to the nearest meter, the height of the plane is approximately 405 meters.

So, the correct answer is B. 405 m.

To find the height of the plane, we can use trigonometry, specifically the tangent function.

Let's denote the height of the plane as h (in meters).

From the information given, we know that the angle of depression from the airplane to the atoll is 5 degrees, and the horizontal distance from the airplane to the atoll is 4629 meters.

Using the tangent function, we have:

tan(angle of depression) = height / horizontal distance

tan(5 degrees) = h / 4629

To find the value of h, we can rearrange the equation:

h = 4629 * tan(5 degrees)

Now, let's calculate the height of the plane:

h ≈ 4629 * 0.0874886635 ≈ 404.773 meters

Rounded to the nearest meter, the height of the plane is approximately 405 meters.

So, the correct answer is B. 405 m.

To learn more trigonometry click:

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True or false
Two points determine a plane

Answers

False it is 3.
One up and down and add one more


false. two points only determine a side of a plane. 

give and example of a line that is parrallel to 9x+6y= -6

Answers

Y=-3/2 x + 0 or an other number

what are the domain and range of the following functions? write your answer using inequality symbols if possible

Answers

c. 
Domain: x>-1
Range y>-1

d.
Domain: -∞<x<∞
Range: -∞<y<∞

The figure consists of a tangent and a secant to the circle. Solve for x.


A. 9.2
B. 7.7
C. 14.3
D. 85

Answers

By the tangent-secant theorem:

x² = 5(5+12) = 5 * 17 = 85
x = √85 ≈ 9.2

Answer:

9.2

Step-by-step explanation:

We are given that a figure in which a tangent and a secant to the circle.

We have to find the value of x.

Length of tangent segment=x

Length of secant segment=12 +5=17 units

Length of external segment=5 units

We know that secant-tangent theorem

It states that product of length of secant segment and its external segment is equal to square of length of tangent segment.

[tex]x^2=17\times 5=85 [/tex]

[tex]x=\sqrt{85}=9.2 units[/tex]

Hence, the value of x=9.2

simplify each expression by destributing. math problem> 3(2y-7)

Answers

The distributive property says that a(b+c)= ab+ac

3(2y-7)= 3(2y)+ 3(-7)

Final answer: 6y-21

Can someone help me with this math problem, please? Thanks!

Answers

Answer: D, -1
First, plug in the value -1 for x in f(x) first. [tex] \frac{1}{(-1)^2+1} [/tex] can then be simplified to [tex] \frac{1}{2} [/tex] because [tex](-1)^2=1[/tex]. Next, put the value -1 for x in the equation g(x). This will look like [tex]- \frac{1}{2} [/tex].

The final step is to evaluate f(x) divided by g(x). f(x) = 1/2 and g(x) = -1/2, so when divided, you get -1.
f(-1)= 1/2
g(-1) = -1/2
1/2 / -1/2 =
1/2 * -2/1 = -1
Letter D

Which kinematics equation is a quadratic equation?

Answers

Answer: s = ut+0.5*a*t^2

How can 3.7=x+(-5) be solved for x in one step?Add 3.7 to both sides .Add 5 to both sides. Subtract 3.7 from both sides Subtract 5 from both sides

Answers

The first step to solve for x in the given algebra using properties of equality is; Add 5 to both sides.

How to Simplify Algebra?

We want to simplify the algebraic expression;

3.7 = x + (-5)

When dealing with algebra like this, what we have to first do is to balance both sides of the equation.

To solve this particular algebra problem, we will use additional property of equality by adding 5 to both sides to get;

3.7 + 5 = x + (-5) + 5

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The first step to solving the expression 3.7 = x + (- 5) is,

''Add 5 to both sides''

The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.

We have to give that,

An algebraic expression to simplify,

⇒ 3.7 = x + (- 5)

Now, Simplify the expression by combining like terms as,

⇒ 3.7 = x + (- 5)

⇒ 3.7 = x - 5

Use the additional property of equality by adding 5 to both sides to get;

3.7 + 5 = x + (-5) + 5

8.7 = x

x = 8.7

So, the first step is, ''Add 5 to both sides''.

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Convert 28.7251° to degrees, minutes, and seconds. Round to the nearest second.

Answers

28.7251 =

 28 degrees

 then take the decimal and multiply by 60 to get the minutes

 so 0.7251 *60 = 43.506, use the whole number (43)

 so now you have 28 degrees, 43 minutes

 now take the remaining decimal ( 0.506) and multiply by 60

0.506*60= 30.36

 when you have a decimal left over for the seconds, keep that as is.

 so you now have 28 degrees, 43 minutes and 30.36 seconds

 use ' for minutes and " for seconds

28 degrees 43' 30.36"

Final answer:

To convert 28.7251 degrees to degrees, minutes, and seconds, take the whole number of degrees (28) and multiply the decimals (.7251) by 60 to get the minutes (43). Then multiply the remaining decimal of the minutes (.506) by 60 to get the seconds (30), resulting in 28 degrees, 43 minutes, and 30 seconds (28° 43' 30").

Explanation:

To convert 28.7251 degrees to degrees, minutes, and seconds, you follow a multi-step process which involves converting the decimal part of the degrees into minutes and then into seconds. First, identify the whole number of degrees, which is 28 in this case.

To convert the decimal part (.7251) to minutes, multiply by 60. Using the operation provided in the reference, with 0.7251 × 60, you get 43.506 minutes. The whole number part, 43, is the minutes.

To convert the remaining decimal part of minutes (.506) into seconds, again multiply by 60. This gives you (.506  imes 60) 30.36 seconds, which when rounded to the nearest second is 30 seconds.

Therefore, 28.7251 degrees is equal to 28 degrees, 43 minutes and 30 seconds (28° 43' 30").

Write a point-slope equation for the line that has slope 5 and passes through the point (6, 22). Do not use parenthesis on the y side.

Answers

the equation to point-slope form is y-y1=m(x-x1) so the answer is:
y-22=5(x-6)

Frank borrowed $400 from his neighbor. He made 3 payments of $65 each and another payment of $95. How much does Frank still owe?

Answers

Hello there!

Frank borrowed $400. He made 3 payments of $65 and an additional payment of $95.

Let's start by setting up our equation.

400 = 3(65) + 95
Multiply 3 by 65.
400 = 195 + 95
Combine like-terms.
400 = 290
Subtract 290 from both sides.
110

Frank still owes $110 to pay.

I hope this helps!

Write the equations in graphing form, then state the vertex of the parabola or the center and radius of the circle.

x^2+y^2+y+2=8

Answers

Since it has both x and y squared, it's a circle - the graphing equation would be x^2+y^2+y-6=0 and we'd then get x^2+y^2+y=6, then (x)^2+(y+1/2)^2=6+1/4, and the center would therefore be  (0, -1/2) with the radius being sqrt(6+1/4)
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