Which of the following is rational?
A. 3 x pie
B. 2/3 + 9.26
C. root 45 + root 36
D. 14.333... + 5.78765239...

Answers

Answer 1
The correct answer is B
2/3 is a rational number + 9.26 (also rational) = rational answer

Related Questions

Caden owns a popular retail website. The initial number of transactions that took place in the first hour of day is 10 and the number of transactions doubles every hour after that. Which statement best describes the initial number of transactions in this situation? The initial number of transactions is neither an independent nor a dependent variable. The initial number of transactions is an independent variable. The initial number of transactions is a dependent variable. The initial number of transactions is both an independent and a dependent variable.

Answers

Answer: The initial number of transactions is neither an independent nor a dependent variable.

Step-by-step explanation:

Here, The initial number of transactions that took place in the first hour of day is 10 and the number of transactions doubles every hour after that.

If x represents the number of hours and y represents Number of transaction after x hours.

Therefore, The function which represents the situation is,

[tex]y = 10\times 2^x[/tex]

Where x is independent variable, while y is dependent variable.

Since initially x=0,   y=10 which is the initial transaction.

And, there is not any impact on the value of 10 by changing the values of x or y, Also 10 is not a variable( because it is a constant value)

Therefore neither it is dependent variable nor it is independent.


Answer:

The initial number of transactions is neither an independent nor a dependent variable.

Step-by-step explanation:

We know that the initial number of transactions that took place in the first hour of day is 10, i. e., a constant that is independent of the total number of transactions and the hour of the day. The independent variable is the time elapsed and the dependent variable is the total number of transactions made.

Describe which set(S) of numbers the number 10/2 fits into.The sets were Natural, Whole, Integers, and Real.

Answers

Hi ArcticWolves

The answer for this question would be D) Real or the fourth option since 10/2 is a real fraction number and not a natural, whole, or integer.

MATH HELP 10 POINTS !

Answers

1) P = 9.4m, A = 4.8m^2

2) 27*14 /2 = 189 ft^2

3) 0.3^3 = 0.027

is this in standard form ? if it isn't then what would it be in standard form ?

Answers

Hello!

To answer your first question, no, that isn't in standard form.

For something to be in standard form, x can't be negative, both x and y need to be on the left side, and there can't be fractions.

Taking the three rules, let's make that equation have no fractions. In order to remove the fractions, you multiply everything by 3.

2/3x - 1/3y = 2
2x - y = 6

Let's go over the rules again to make sure:
X isn't negative - correct.
x and y is on the left side - correct
No fractions - correct.

Now that it passed all the rules, 2x - y = 6 would be your correct standard form equation.

Hope I helped (:

The axis of symmetry of a quadratic equation is x = –3. If one of the zeroes of the equation is 4, what is the other zero? –10 –7 –6 –4

Answers

-10 The axis of symmetry means that the curve is mirrored across that axis. So if you have a zero at x=4, first determine how far away from the axis of symmetry that is. 4 - (-3) = 4 + 3 = 7 So the other zero would be 7 units away from -3. Since we

Answer:

A-10

Step-by-step explanation:

Using the function f(x) = 2x + 7 find the following: (show your work)

1. f(x) = 13
2. f(x)=21


To use function notation we either replace the x in the equation or the f(x) in the equation.
To find f(2) we replace the ________ in the equation with _________ and then solve for f(x).
To find f(x)=2 we replace the _________ in the equation with __________ and then solve for x.

Answers

Our function for these problems is f(x)=2x+7.

To find f(x)=13 we will set our first function equal to 13.
2x+7=13

Then we will solve for x.
2x+7=13
2x+7-7=13-7
2x=6
2x/2=6/2
x=3

To find f(x)=21 we will set the first function equal to 21.
2x+7=21

Now we will solve for x.
2x+7=21
2x+7-7=21-7
2x=14
2x/2=14/2
x=7

Now, let's look at the fill-in the blank part. 
To find f(2), we replace the in the equation with and solve for f(x).
To find f(x)=2, we replace the f(x)  in the equation with 2 and solve for x. 

The sum of 3 times a number and 4 is between -8 and 10

Answers

equation: 3x+4= -8,10

Which of the following expressions is not correctly written in scientific notation?

1 × 104
9 × 102
10 × 107
5 × 103

Answers

10 x 10 ^ 7

Should be

1.0 x 10 ^ 8

Answer:

1.0 x 10 ^ 8

Step-by-step explanation:

PLZ HELP!

- 1/2 + 2/3

As a fraction??

Answers

first find the LCD of both fractions, which is 6

make the denominators the same as the LCD

simplify it, now that its equal

join the denominators together

lastly simplify 

Answer: 1/6.

what are Negatives and Positives (math) and can u help me learn them

Answers

Example of Negative numbers:

-4
-16
-19

Anything with a (-) negative sign is a negative

Positive are just your basic numbers:

5
6
7

example of a negative with a postive:

-9+6

=-3

So if Jimmy owes you 9 dollars, but only has 6 at the moment, he still owes you 3 dollars.
So positives are whole numbers. 1, 2, 3, 4, 5 and the list goes on forever.

Negatives are the numbers to the left of zero on any number line.

Negatives ------- 0 ------- Positives

-5 -4 -3 -2 -1 0 1 2 3 4 5

When you're adding negatives and positives these are some important rules to remember:
When you have more negatives KEEP the negative sign.
If you have more positives you can get rid of the negative sign.

1. -4 + 2 = -2
When you're adding a negative and a positive think of subtracting.

2. 7+ -3 = 4

Hope this helped!

Un elev are un numar de fotografii cu diverse specii de animale si pasari. Vrand sa le lipeasca pe filele unui album, consta ca daca le aseaza cite 3 sau cite 4, sau cite 5, sau cite 6 pe ultima fila ii ramine de fiecare data o fotografie. Daca le asezam cite 7 pe fiecare fila, atunci nu-i va ramine niciuna. Cite foografii are elevul?

Answers

A=3*x+1 a-1=3*x
a=4*y+1 a-1=4*y
a=5*z+1 a-1=5*z ⇒ a-1 ∈ M3 ∩ M5 ∩ M4

a-1∈{60,120,180,240,300,360..}
a∈ { 61, 121, 181, 241, 301, 361..}
dar a∈ M7 ⇒ a=301

Which of the following best describes the equation below? 3(x + 10) + 8x = 11x - 30
A. exactly one real solution, x = -1
B. exactly one real solution, x =7 1/2
C. infinite real solutions
D. no real solutions

Answers

Dis the answer i think

Answer: d

Step-by-step explanation:

Answer bottom 6 algebra 1 problems please

Answers

3)
Domain:

[tex]v+12\neq0\\\\\boxed{v\neq-12}[/tex]

[tex]9=\dfrac{v+4}{v+12}\quad|\cdot(v+12)\\\\\\9(v+12)=v+4\\\\9v+108=v+4\\\\9v-v=4-108\\\\8v=-104\quad|:8\\\\\boxed{v=-13}[/tex]

4)

[tex]7-(5t-13)=-25\\\\7-5t+13=-25\\\\-5t=-25-7-13\\\\-5t=-45\quad|:(-5)\\\\\boxed{t=9}[/tex]

5)

[tex]-3(7p+5)=27\\\\-21p-15=27\\\\-21p=27+15\\\\-21p=42\quad|:(-21)\\\\\boxed{p=-2}[/tex]

6)

[tex]14+13y=20y-21\\\\13y-20y=-21-14\\\\-7y=-35\quad|:(-7)\\\\\boxed{y=5}[/tex]

7)

[tex]\dfrac{-8-3k}{2}=11\quad|\cdot2\\\\-8-3k=22\\\\-3k=22+8\\\\-3k=30\quad|:(-3)\\\\\boxed{k=-10}[/tex]

8)

[tex]-15b+21+5b=-19\\\\-15b+5b=-19-21\\\\-10b=-40\quad|:(-10)\\\\\boxed{b=4}[/tex]

Patricia wishes to have a rectangular-shaped garden in her backyard. she has 70 ft of fencing material with which to enclose her garden. letting x denote the width of the garden, find a function f in the variable x giving the area of the garden. what is its domain?

Answers

The function that gives the area (A) of the garden in terms of the width (x) is A(x) = x × (35 - x)

The domain of the function would be: 0 ≤ x ≤ 35

To find the function that gives the area of the garden, let's start by understanding the problem. Patricia wants to enclose a rectangular garden with a total of 70 feet of fencing material. This means that the sum of all sides of the rectangular garden (perimeter) should be equal to 70 feet.

For a rectangular garden, the perimeter is given by the formula:

Perimeter = 2 × (length + width)

In this case, since one of the sides is the width (x) and the other side is the length, the formula becomes:

70 = 2 × (x + length)

Solving for the length:

x + length = 70 / 2

length = 35 - x

Now, the area of a rectangle is given by the formula:

Area = length × width

Substitute the expression for the length:

Area = (35 - x) × x

Now, you have a function that gives the area (A) of the garden in terms of the width (x):

A(x) = x × (35 - x)

The domain of this function is the range of valid values for x. Since x represents the width of the garden, it should be a positive value. Also, the width cannot exceed 35 (since the length is 35 - x). So, the domain of the function is:

0 ≤ x ≤ 35

This means that the width (x) can take any value between 0 and 35 feet, inclusive, within the context of the problem.

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Final answer:

To find the area of the garden, we need to relate the width and length of the garden to the amount of fencing material. The function that gives the area of the rectangular garden is A = x(35 - x). The domain of the function is 0 ≤ x ≤ 35.

Explanation:

To find the function that gives the area of the rectangular garden, we need to relate the width and length of the garden to the amount of fencing material. Since the garden has four sides, two sides of length x and two sides of length y, we have the equation 2x + 2y = 70. Solving for y, we get y = 35 - x. The area of a rectangle is given by the formula A = x * y. Substituting y = 35 - x, we get A = x(35 - x) = 35x - x^2.

The domain of the function f(x) = 35x - x^2 is determined by the values of x that make sense in the context of the problem. In this case, the width cannot be negative and it cannot be greater than 35 (since the length cannot be negative or greater than 35 either).

Therefore, the domain of the function is 0 ≤ x ≤ 35.

Two cards are selected without replacement from a standard deck of 52 cards. what is the probability that both cards are the same color (i.e., either both black or both red)

Answers

First card to be selected=52/52=1
Second card to be selected and be the same colour=25/51
P=25/51

What are the solutions of x^2=13x-4

Answers

By using the quadratic formula, the solutions of the quadratic equation include;

[tex]x = \frac{-13\; - \;3\sqrt{17}}{2}[/tex] and [tex]x = \frac{-13\; + \;3\sqrt{17}}{2}[/tex]

In Mathematics and Geometry, the standard form of a quadratic equation is represented by the following equation;

[tex]ax^2 + bx + c = 0\\\\x^2=13x-4\\\\x^{2} -13x+4=0[/tex]

where:

a = 1, b = -13, c = 4

Mathematically, the quadratic formula is represented by this mathematical equation:

[tex]x = \frac{-b\; \pm \;\sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{-(-13)\; \pm \;\sqrt{(-13)^2 - 4(1)(4)}}{2(1)}\\\\x = \frac{-13\; \pm \;\sqrt{169 - 16}}{2}\\\\x = \frac{-13\; \pm \;\sqrt{153}}{2}\\\\x = \frac{-13\; + \;3\sqrt{17}}{2}\\\\x = \frac{-13\; - \;3\sqrt{17}}{2}[/tex]

Figure ABC is to be translated to Figure A'B'C' using the rule (x, y) → (x−3, y+4). Triangle ABC on the coordinate plane with the ordered pairs for A as 1,1, B as 2,5, and C as 3,2. Which coordinates will best represent point A'? (−2, 5) (4, −3) (−2, −3) (4, 5)

Answers

A (1,1)
A'(1- 3,1- 4)
A'(- 2,- 3)
The translation P(x, y) → P'(x−3, y+4) 

means that every point P(x, y) is shifted :

3 units left (because of the -) and 4 units up (because of the +).


We say P was "mapped" onto P'.


Point A(1,1) is mapped to A'(1-3,1+4)=A'(-2, 5).


Check the picture to see where each of the points A, B and C are mapped.

7/11 and 7/11 determine if parallel, perpendicular, or neither

Answers

Neither, because the lines will be on top of each other, and so it will neither be parallel or perpendicular

hope this helps
Final answer:

The values 7/11 and 7/11, when considered slopes of two lines, indicate that these lines are parallel because they have identical slopes. For the lines to be perpendicular, one slope would need to be the negative reciprocal of the other, which is not the case here.

Explanation:

When faced with the values 7/11 and 7/11 in a mathematical context, we typically need additional information to determine a relationship such as whether lines or vectors are parallel, perpendicular, or neither. However, if we assume that the fractions 7/11 represent the slopes of two lines in a Cartesian coordinate system, we can determine the relationship between these lines.

If two lines have identical slopes, this indicates that they are parallel. Their steepness in the coordinate system will be the same, and they will not intersect, no matter how far they are extended. In our case, both slopes are 7/11, which means that these lines are indeed parallel to each other.

For lines to be perpendicular, the slope of one line must be the negative reciprocal of the other. In terms of angles, perpendicular lines intersect at a 90° angle. Since both slopes given here are identical, they do not satisfy the condition for perpendicularity.

Understanding the relationship between lines is essential for analyzing the structure of geometric figures and solving various problems in physics and engineering. Remember that irrespective of relative directions like 'forward' or 'backward,' parallelism is evaluated based on slope in a Cartesian plane.

Find the equation of the line (in slope intercept form) passing through the point (6,−2)(6,−2) and parallel to the line passing through (−3,4)(−3,4) and (3,−1)(3,−1).

Answers

the slope of the equation is y1 - y2 divided by x1 x2

How many numbers are evenly divisible by four between 39 and 59?

Answers

39/4=9.

59/4=14.

add 14.+9.=23

now divide 23/4=5

40 is the first number evenly divided by 4 and is the 10th multiple of 4 (4*10=40)

56 is the last number evenly divisible by 4 and is the 14th multiple of 4 ( 4*14 =56)

14-10 = 4 +1 = 5

 there are 5 numbers evenly divisible by 4

How to find amplitude of a trig function?

Answers

hello : 

y = A sin(Bx + C) + D

·        amplitude is A

Final answer:

To find the amplitude of a trigonometric function, identify the coefficient in front of the sine or cosine term in the wave equation. In the example equation y(x, t) = A sin(kx — wt), the amplitude is 0.2 meters, represented by A.

Explanation:

To find the amplitude of a trigonometric function, one must identify the coefficient of the sine or cosine function in the wave equation. Given the wave equation y (x, t) = A sin (kx — wt), the amplitude can be extracted directly as it is the absolute value of the coefficient A in front of the sine or cosine term. In the example provided, the amplitude of the wave is 0.2 meters because it is represented by A in y (x, t) = [tex]0.2 m sin (6.28 mx-1.57 s-t).[/tex]

Moreover, the characteristics of a sinusoidal wave such as wavelength (λ), period (T), and frequency (f) are related to the amplitude but represent different aspects of the wave's behavior. These can be determined using the wave number (k), angular frequency (ω), and initial phase shift, when present.

Community coffee company wants a new flavor of cajun coffee. how many pounds of coffee worth $7 a pound should be added to 20 pounds of coffee worth $2 a pound to get a mixture worth $5 a pound

Answers

Let us say that:

x = pounds of $7 coffee

 

So that:

7 x + 2 * 20 = 5 * (x + 20)

7x + 40 = 5x + 100

2x = 60

x = 30 pounds

 

Therefore 30 pounds should be added.

Final answer:

To get a mixture of coffee worth $5 a pound, you should add 30 pounds of coffee worth $7 a pound to 20 pounds of coffee worth $2 a pound.

Explanation:

To solve this problem, we can use the method of mixtures. Let's assume that x pounds of coffee worth $7 a pound is added to 20 pounds of coffee worth $2 a pound. The total weight of the mixture will be (x + 20) pounds. The total value of the mixture will be the sum of the values of the two types of coffee.



The value of the 20 pounds of coffee worth $2 a pound is 20 * 2 = $40. The value of the x pounds of coffee worth $7 a pound is 7x. So, the total value of the mixture will be $40 + 7x.



Since we want the mixture to be worth $5 a pound, we can set up the equation:



(40 + 7x) / (20 + x) = 5



To solve this equation, we can cross-multiply:



(40 + 7x) = 5(20 + x)



Expanding the right side of the equation, we get:



40 + 7x = 100 + 5x



Subtracting 5x from both sides, we get:



2x = 60



Dividing both sides by 2, we get:



x = 30



Therefore, 30 pounds of coffee worth $7 a pound should be added to 20 pounds of coffee worth $2 a pound to get a mixture worth $5 a pound.

In the time a person on a bicycle travels 4 miles a person in a car travels 30 miles assuming a constant speed how far will the car travel while the bicycle travels 40 miles

Answers

Final answer:

The car will travel 300 miles while the bicycle travels 40 miles

Explanation:

Let's first calculate the ratio of distances traveled by the bicycle and the car in the given scenario:

Ratio of distances = Distance traveled by car / Distance traveled by bicycle

Ratio of distances = 30 miles / 4 miles = 7.5

This ratio represents the speed ratio between the car and the bicycle. Now, we can use this ratio to find the distance the car will travel while the bicycle travels 40 miles:

Distance traveled by car = Ratio of distances * Distance traveled by bicycle

Distance traveled by car = 7.5 * 40 miles = 300 miles

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what are the values of x and y for this system of equations?
2x + y = -1
-x + 3y = 18

Answers

x=-3 and y=5
2x+y=-1

-x+3y=18
3y-18=x

2(3y-18)+y=-1
6y-36+y=-1
7y=-1+36
7y=35
y=35/7
y=5

-x+3y=18
-x+3(5)=18
-x+15=18
-x=18-15
-x=3
x=-3

X=1+y/2
That's the answer to the first half of the problem shown the whole problem is invalid together


How many zero pairs must be added to the function
f(x) = x2 – 10x – 4 in order to begin writing the function in vertex form?


4

10

21

25

Answers

25 would be the correct answer if you want this explained let me know 

Answer:

25

Step-by-step explanation:

e2020

The fourth grade students at Riverside school are going on a field trip. There are 68 students on each of the 4 buses. How many students are going on the field trip?

Answers

272 is the answer to this question
If there are 68 students on one bus

Number of students on 4 buses
=68x4
=272

In which section of the credit report is a list of all monthly payments?

Answers

The parts of a credit report are Personal Information (date of birth, address, etc.), Credit History (credit limit, monthly payments, monthly balance, date of account opening/closing), Credit Inquiries (showing when your credit report was seen by others), Public Records (bad things, like if you filed for bankruptcy, tax liens where you can't buy certain things until you pay back your debt, or if a court found that you owe another party money), and a Personal Statement (where you can explain why something bad happened).

The answer is right in the description under one of the sections - I challenge you to find it!

(-1/3,-13/18) a solution of 6y=4x-3

Answers

u have to plug it in the x,y

The local toy store has a bin of toy vehicles for sale. The bin holds b bikes and c cars. If the store sells 1/3 of the vehicles in the bin, which expression represents the number of vehicles remaining in the bin?

Answers

The expression that can be used to represents the number of vehicles remaining in the bin is (b + c) - 1/3(b + c)

How to write a mathematical expression?

Number of bikes = bNumber of cars = c

Total vehicles = b + c

Number of vehicles sold = 1/3 of total vehicles

= 1/3(b + c)

Number of vehicles remaining = (b + c) - 1/3(b + c)

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The expression that represents the number of vehicles remaining in the bin is 2/3 (b + c).

To determine the number of vehicles remaining in the bin after selling 1/3 of them, we start by calculating the total number of vehicles initially present. This total number is represented by b + c, where b is the number of bikes and c is the number of cars.

If the store sells 1/3 of the vehicles, the number sold can be represented as:

(b + c) / 3

The number of vehicles remaining in the bin would be the original total minus the number sold:

(b + c) - (b + c) / 3

We can simplify this expression by finding a common denominator:

(b + c) - (b + c) / 3 = 3(b + c)/3 - (b + c) / 3 = (3(b + c) - (b + c)) / 3 = (2(b + c)) / 3

Therefore, the expression that represents the number of vehicles remaining in the bin is 2/3 (b + c).

what is 362% of 19.5

Answers

The answer is 70.59.
The answer the the question is70.59
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