What is the property of 16+31=31

Answers

Answer 1

We have the equation here is

16 + 31 = 31

When we simplify the equation to the understandable form, we move all terms or numbers to right and on left side zero will be left.

0 = 31-16-31

We get, 0 = -16

Now we see that both sides of equations are not equal, it means there is no solution so it is an invalid equation.


Related Questions

Chin Woo bought a home for $160,000. He put down 20%. The mortgage is a 8 1/2% for 25 years. His yearly payments are?

Answers

Amount of the mortgage after down payment is
160,000−160,000×0.2=128,000

Now use the formula of the present value of annuity ordinary to find the yearly payment
The formula is
Pv=pmt [(1-(1+r)^(-n))÷r]
Pv present value 128000
PMT yearly payment?
R interest rate 0.085
N time 25 years
Solve the formula for PMT
PMT=pv÷[(1-(1+r)^(-n))÷r]
PMT= 128,000÷((1−(1+0.085)^(
−25))÷(0.085))
=12,507.10 ....answer

Paula is given a litre of water during her fitness assessment at the gym she drinks 375 milliliters of water how much is left

Answers

1 liter = 1000 milliliters so we can find it out by taking 1000 ml and subtracting 375 ml from 1000 milliliters. 1000 - 375 = 625 milliliters left. Also, if they want the answer in liters, we can find this out since we know that 1 liter = 1000 milliliters.

Answer in liters and percent

[tex] \frac{1000-375}{1000} = .625 [/tex] This is saying we have .625 of a liter left or we have 62.5% left

factor out the polynomial: 12x^2+26x+12

Answers

Answer see attached form:

in a grocery store steak cost $3.85 per pound if you buy a three pound steak and pay for it with a $20 bill how much change will you get

Answers

The steak when bought with a $20 bill would cost totally $8.45

The change to be recieved is equal to $8.45

What is the unitary method?

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

Given here: The price per steak is given as $3.85 per pound.

Thus 3 pound of steak will cost 3×3.85=$11.55

Therefore the change to be recieved is =20-11.55

                                                                  =$8.45

Hence, The change to be recieved is equal to $8.45

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Please explain to me 1) the similarities/differences in the two lines, 2) how are the two graphs related to one another, and 3) how do the equations show this relationship for the following:

Answers

first off, the function A is an exponential one with a base of 4
the function B is just a horizontal line at y  = 1/4

1) similarities? none other than they have both share the same point of -1, 1/4 or -1, 0.25, so they cross each other at that point, after that, B keeps on going horizontally, and A keeps on going up.

2)  related?  not sure on that one, I don't see much relation, other than they're both on the same plane and share the same axes.

3)  hmmm what is the following again?

If a wheel with a radius of 80 inches spins at a rate of 50 revolutions per minute, find the approximate linear velocity in miles per hour.

Answers

Check the picture,

let A be the point where the circle (the wheel) touches the ground. One revolution is completed when A is back on the ground. This happens after all the points in the circumference, have touched the ground.

So one revolution means 1 circumference, which is equal to one 2πR.

50 revolutions per minute means the velocity  is  50*2πR inches per 1 minute.

50*2πR=50*2*3.14*80 (inches) =  25,120 inches per minute.

1 foot is 12 inch, so 25,120 inches are [tex] \frac{25,120}{12} =2093.3 [/tex] feet

1 mile is 5280 feet so 2093.3 feet are [tex] \frac{2093.3}{5280}= 0.4[/tex] mile

now we convert minutes to hour: 1 hour = 60 min, so 1 min=1/60 hour

finally:

velocity= [tex] \frac{0.4miles}{1/60 hours}= 0.4*60 mi/h=4*6 mi/h= 24 mi/h[/tex]

A seven
digit number has a 0 in the ones place,as 6 in the tens thousands place,an 8 in the millions place,and fives in each of the remaining places .what is the number

Answers

The number would be 8,565,550

How do you find common factors

Answers

First, you break down the numbers. Find what numbers can be multiplied together to create those numbers. Now, you can see what factors the numbers have in common. For example, you have the two numbers 6 and 9. 6×1=6 2×3=6 and then 1×9=9 and 3×3=9. Both of the numbers have the factors 3 so they have the common factor of 3.
Final answer:

To find common factors between numbers, list all factors of each number and identify numbers that are in both lists. When multiplying fractions, multiply numerators and denominators then simplify by common factors. Multiplying both sides by the same factor can help in solving equations with fractions.

Explanation:

To find common factors between two or more numbers, you first list out all the factors of each number. Factors are numbers that divide into the original number without leaving a remainder. For instance, if we are looking for common factors of 8 and 12, we list their factors as follows: the factors of 8 are 1, 2, 4, and 8, and the factors of 12 are 1, 2, 3, 4, 6, and 12. After listing out the factors, you look for numbers that appear in both lists. In this example, the common factors of 8 and 12 are 1, 2, and 4.

Another approach mentioned involves multiplying both sides by the same factor to make both sides integers when working with equations. This can be useful when seeking to simplify fractions or solve equations with fractional components.

It is also important to recognize that while multiplying fractions, we multiply the numerators together and the denominators together. Simplifying the result by common factors as needed helps in reducing fractions to their simplest form. For example, if we multiply ½ by ¾, we get a result of ¼ (numerator 1x3=3, denominator 2x4=8) which we can simplify to ¾ by dividing both numerator and denominator by the common factor 3.

A trinomial that contains the variable k the coefficient of the second degree term is 1, the coefficient of the first degree term is -7 and the constant term is -15 how would you write this?

Answers

[tex]k^{2}-7k-17[/tex]

You have $5. If candy bars cost $0.75, what is the greatest number of candy bars you can buy

Answers

you can buy six candy bars, hope this helped!

You can buy 6 candy bars. and have 50 cents left over. 

6 candy bars will cost you $4.50 which fits your budget.
7 candy bars will cost you *5.25 which is over your budget.

Mr.matt plans to invest 7,500 in a savings account that earns 2.75% simple anual interest.if he makes no deposits or withdrawal ls how much money will his account be worth after 10 years

Answers

[tex]\bf \qquad \textit{Simple Interest Earned Amount}\\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\to& \$7500\\ r=rate\to 2.75\%\to \frac{2.75}{100}\to &0.0275\\ t=years\to &10 \end{cases} \\\\\\ A=7500(1+0.0275\cdot 10)[/tex]

if f(x) = x^2 + 1 and g(x) = x - 4, which value is equivalent to ( f ○ g)

a. 37
b 97
c 126
d 606

(Compostition of Functions)

Answers

Alright, so f composition g is putting g(x) into f(x), which is (x-4)^2+1. I don't see a way to turn it into a number

Six nickel is what Percent of a dollar

Answers

30%.
6 nickels equal 30 pennies, and 100 pennies make up a dollar.
30/100 = 30%.
6×5 is 30 out of 100 cents (1 dollar) 30 out of 100 which is 30%

Which of the following represents the linear equation 3x =12 - 2y in standard form?
A: y=-2/3x-2
B: y=-2/3x-6
C: y=-3/2x+6
D: y= 2/3x-17/3

Answers

3x = 12 - 2y....in standard form is : 3x + 2y = 12

3x = 12 - 2y
3x - 12 = -2y
-3/2x + 6 = y....y = -3/2x + 6 <== this is slope intercept form

y varies inversely with x k = 0.6 What is the value of x when y is 0.6? A. x = 0.36 B. x = 1 C. x = 3.6 D. x = 10

Answers

[tex]\bf \qquad \qquad \textit{inverse proportional variation}\\\\ \textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby \begin{array}{llll} k=constant\ of\\ variation \end{array}\\\\ -------------------------------\\\\ k=0.6\qquad y=\cfrac{0.6}{x} \\\\\\ \textit{What is the value of x when y is 0.6?}\qquad 0.6=\cfrac{0.6}{x}[/tex]

solve for "x".

Answer:

.

Step-by-step explanation:

.

Chris can be paid in one of two ways. Plan A is a salary of $350 per month, plus a commission of 7% of a sales. pLan B is a salary of $436 per month, plus a commission of 5% of sales. For what amount of sales is Chris better off selecting plan A

Answers

let's say, the total sales is "x"... .so hmm on Plan A, he gets 350 plus 7% of "x", well, 7% is just (7/100) * x or 0.07x

now, on Plan B, he gets 436 plus 5% of "x", 5% of "x" is (5/100) * x, or 0.05x

he's better off with A, only if A is greater than B, namely, A > B

[tex]\bf A\ \textgreater \ B\implies 350+0.07x\ \textgreater \ 436+0.05x \\\\\\ 0.07x-0.05x\ \textgreater \ 436-350\implies 0.02x\ \textgreater \ 86\implies x\ \textgreater \ \cfrac{86}{0.02}[/tex]

and surely you know how much that is.

If 5(3x-7)=20, then what is 6x-8

Answers

5(3x-7) = 20

15x-35 = 20

15x = 55

x = 3.666666


 so 6(3.666666) -8 = 13.99999 round to 14

5(3x-7)=20
15x-35=20
15x=55
x=3 2/3

6(3 2/3)-8
22-8=14
so the answer is 6x-8=14

The table below shows the surface area y in square inches, of a shrinking puddle in x hours
Time (x) (hours) 2 5 8 11

Surface area (y) 25 15 9 2
(Square inches)

Part a- what is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and surface are puddle. [choose the value of the correlation coefficient from -1,-0.99,-0.5,-0.02]

Part b - what is the value of the slope of the graph of surface area versus time between 5 and 8 hours and what does the slope represent?

Part c- does the data in the table represent correlation or causation?

Answers

Part A
Correlation coefficient: -.99
This tells us that as time goes on (value of x increases) the area of the puddle goes down (value of y decreases)

Part B
y₂ - y₁
-------   = slope
x₂ - x₁
9 - 15
--------
5 - 8
-6/-3 = 2
So the slope equals -2, regardless of the fact that we got 2 as an answer there, we know that it is a negative slope 

Part C
The data represents causation because an increase in the value of x results in a decrease in the value of y, this shows an example of direct causation between x and y.

Answer:

Step-by-step explanation:

Given is a table showing the surface area y in square inches, of a shrinking puddle in x hours

x y

 

2 25

5 15

8 9

11 2

 

r -0.993835256

Hence correlation coefficient is option B) -0.99

Part b:

Time Sur area

x y

 

2 25

5 15

8 9

11 2

 

r -0.993835256

slope -0.395083406

Intercept 11.53731343

slope =-0.395

Between 5 and 8, slope = [tex]\frac{change in y}{change in x} \\=\frac{9-15}{8-5} \\=-2[/tex]

Slope represents the change of y with respect to 1 unit change in x.

Part c:

Yes correlation strong and negative.

A wheel makes 5 13/16 revolutions per minute. If it rotates for 76 minutes, how many revolutions does it make?

Answers

multiply 5 13/16 by 76


5 13/16 * 76 = 441 3/4 revolutions

Which statement is true about whether Z and B are independent events?

Z and B are independent events because P(Z∣B) = P(Z).
Z and B are independent events because P(Z∣B) = P(B).
Z and B are not independent events because P(Z∣B) ≠ P(Z).
Z and B are not independent events because P(Z∣B) ≠ P(B).

Answers

The answer is the first one im taking that test rn lol

Answer:

Z and B are independent events because P(Z∣B) = P(Z).

Step-by-step explanation:

Z and B are independent events

When Z  and B  are independent events then

P(Z and B) = P(Z) * P(B)

P(Z∣B)= [tex]\frac{P(Z and B)}{P(B)}[/tex]

P(Z∣B)= [tex]\frac{P(Z)*P(B)}{P(B)}[/tex]

We cancel out P(B) on both sides

P(Z|B) = P(Z)


find the x intercepts of the parabola with vertex (5,-12) and y intercept (0,63)

Answers

Final answer:

To find the x-intercepts of the parabola with vertex (5,-12) and y intercept (0,63), substitute the vertex values into the equation of the parabola and find the value of the constant. Then, substitute the value of the constant back into the equation and solve for x to find the x-intercepts. The x-intercepts of the parabola are x = 3 and x = 7.

Explanation:

To find the x-intercepts of the parabola with vertex (5,-12) and y-intercept (0,63), we need to find the values of x when y is equal to zero. Since the vertex of the parabola is (5,-12), the equation of the parabola can be written as[tex]y = a(x-5)^2 - 12.[/tex] To find the value of a, we can use the y-intercept (0,63) by substituting the values of x and y into the equation.

[tex]63 = a(0-5)^2 - 12[/tex]

63 = 25a - 12

25a = 75

a = 3

Now that we have the value of a, we can substitute it back into the equation and solve for the x-intercepts:

[tex]0 = 3(x-5)^2 - 12[/tex]

[tex]3(x-5)^2 = 12[/tex]

[tex](x-5)^2 = 4[/tex]

x-5 = ±2

x = 5 ± 2

Therefore, the x-intercepts of the parabola are x = 3 and x = 7.

Adam is going to cook a turkey for 14 people and wants to allow ¾ lb of turkey for each person.

1lb = 450 g

How much would a turkey cost for 14 people?

Answers

Calculate how many grams should we have per person.

3/4*450=337.5 g for each person.
Now multiply the result by the number of persons

337.5*14=4725 g


if BD is the midsegment and BD is parallel to to AE, then value of AE is

28.
56.
112.
None of the choices are correct.

Answers

112 is correct, 56 times 2.

F(x) = 9 sin(x) + cot(x), −π ≤ x ≤ π find the interval of increase.

Answers

We are given the function
F(x) = 9 sinx + cot x

We need to take the first derivative of the given function so,
F' (x) = 9 cos x - csc² x

Next, we equate the first derivative of the function to 0 and solve for the values of x
0 = 9 cos x - csc² x
Solving for x
x = 2.04

Picking out an arbitrary value between 2.04 and π, say 3 and substituting in F(x)
F(3) = 9 sin 3 + cot 3 = 19.55

Therefore, the interval where the function is increasing is from 2.04 to π
Consequently, the interval where the function is decreasing is from -π to 2.04

Final answer:

To find the interval of increase for the function F(x) = 9*sin(x) + cot(x), we need to find where the derivative is positive. The interval of increase for the function is (0, π/2) and (π, 3π/2).

Explanation:

In order to find the interval of increase for the function F(x) = 9*sin(x) + cot(x), we need to find where the derivative is positive. Let's first find the derivative of F(x). The derivative of sin(x) is cos(x) and the derivative of cot(x) is -csc^2(x).

So, the derivative of F(x) is 9*cos(x) - csc^2(x). Now, to find where the derivative is positive, we need to find the intervals where 9*cos(x) - csc^2(x) > 0. We can solve this inequality by analyzing the sign changes of the derivative function.

By analyzing the sign changes of 9*cos(x) - csc^2(x), we find that the derivative is positive when x is in the intervals (0, π/2) and (π, 3π/2). Therefore, the interval of increase for the function F(x) = 9*sin(x) + cot(x) is (0, π/2) and (π, 3π/2).

Add 2 then add 4! I dont get it at all plz help!

Answers

The question could be asking one of two things. If it is asking for you to create an equation that represents that, the equation would be:

x+2+4

We can find this by breaking apart the question. Since we are not given a variable, we can assume x. Then, you can reference "add 2" for where I got the "+2." Finally, you can see the "add 4," which is where I got the "+4."

If the question is referring to simple addition, you can simply add these numbers together. If you are really struggling, you should use a calculator and input these values. To improve your basic addition skills, you can practice with the popular elementary "finger-counting method" where you hold up the value of one of the numbers on one hand, and the other value on the other hand, and then count how many fingers are up.

If you need any further explanation, please let me know and I will be happy to assist you! :)


Suppose f⃗ (x,y,z)=⟨x,y,4z⟩f→(x,y,z)=⟨x,y,4z⟩. let w be the solid bounded by the paraboloid z=x2+y 2 z=x2+y2 and the plane z=9.z=9. let ss be the closed boundary of ww oriented outward. (a) use the divergence theorem to find the flux of f⃗ f→ through s.

Answers

Final answer:

To find the flux of a vector field through a closed boundary using the divergence theorem, calculate the divergence of the vector field and evaluate the triple integral of the divergence over the solid bounded by the boundary. In this case, the flux is 3 times the volume of the solid.

Explanation:

The student is asking how to use the divergence theorem to find the flux of a vector field through a closed boundary. In this case, the vector field is defined as f(x, y, z) = ⟨x, y, 4z⟩ and the closed boundary is a solid bounded by the paraboloid z = x^2 + y^2 and the plane z = 9.

To use the divergence theorem, we need to calculate the divergence of the vector field, which is the sum of the partial derivatives of f with respect to each variable. In this case, the divergence is 3.

Then, we can use the divergence theorem to find the flux through the closed boundary by evaluating the triple integral of the divergence over the solid bounded by the paraboloid and the plane. In this case, the flux is 3 times the volume of the solid.

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The flux of [tex]\(\vec{F}\)[/tex] through S is 24π.

To apply the divergence theorem, we first compute the divergence of [tex]\(\vec{F}\)[/tex]:

[tex]\nabla \cdot \vec{F} = \frac{\partial}{\partial x} (x) + \frac{\partial}{\partial y} (y) + \frac{\partial}{\partial z} (4z) = 1 + 1 + 4 = 6.[/tex]

The divergence theorem states that the flux of a vector field through a closed surface is equal to the triple integral of its divergence over the region enclosed by the surface.

Thus, we have:

[tex]\iint_S \vec{F} \cdot d\vec{A} = \iiint_W (\nabla \cdot \vec{F}) \, dV = \iiint_W 6 \, dV[/tex]

The region W is bounded below by the paraboloid [tex]\(z = x^2 + y^2\)[/tex], and above by the plane z = 4.

Converting to cylindrical coordinates, we have:

[tex]\iiint_W 6 \, dV = \int_0^{2\pi} \int_0^2 \int_{r^2}^4 6 \cdot r \, dz \, dr \, d\theta = 24\pi.[/tex]

A line segment that goes from one side of the circle to the other side of the circle and doesn’t go through the center is

Answers

A chord is a line segment that goes from one side of the circle to the other without crossing the center. 

Answer:

A line segment that goes from one side of the circle to the other side of the circle and doesn’t go through the center is called chord of the circle.

Step-by-step explanation:

Consider the provided information.

It is given that the line segment goes from one side of the circle to the other side of the circle and doesn’t go through the center.

Diameter: A line segment goes from one side to another side of a circle passes through the center is called the diameter of the circle.

Chord:  A line segment goes from one side to another side of a circle but do not passes through the center is called the chord of the circle.

For better understanding refer the attached figure:

Hence, A line segment that goes from one side of the circle to the other side of the circle and doesn’t go through the center is called chord of the circle.

Can the side lengths of 12, 15, and 13 form a triangle?
Yes
No

Answers

Yes. 12 and 13 would be the legs, and 15 would be the hypotenuse. This would form a right triangle.
My answer is yes! The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side. So the sum of 2 sides, must be greater than the third... I hope this helps please rate and thanks

The revenue in dollars of a company that produces jeans can be modlelded by 2x^2+17x-175 the cost In dollars of producing the jeans can be modeled by 2x^2-3x-125 the number of jeans that have been sold is represented by x the profit is the difference between revenue and cost 20x-50 if 75 pairs of jeans are sold what's the company's profit

Answers

replace x with 75

 20x-50 becomes

20(75)-50

20*75 = 1500-50 = 1450

 the profit was $1450


Answer:

B

Step-by-step explanation:

The standard error of the estimate, sest, is essentially the

Answers

In data regression, the standard error of estimate is defined by the square root of the summation of the difference of the predicted and actual values, divided by the number of data. Qualitatively, the sest measures the accuracy of the predicted values of your empirical model.


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