Which expressions are equivalent?

A. 1/5 k - 2/3 j and - 2/3 j + 1/5 k

B. 1/5 k - 2/3 j and - 1/5 k + 2/3 j

C. 1/5 k - 2/3 j and 1/5 j -2/3 k

D. 1/5 k - 2/3 j and 2/3 j - 1/5 k

Answers

Answer 1
Answer A is correct.
The two values on the right side are (+1/5k) and (-2/3j), so the left side must also have a -2/3j and a +5/3k
Answer 2

Answer: A

Step-by-step explanation:


Related Questions

The Skittles jar has a radius of 3.5 cm and a height of 11.5 cm. Using the two given boxes for reference what would be a good estimate for the number of jelly beans in the jar?

Answers

Answer:

1052

Step-by-step explanation:

The two given boxes for reference are presented below.

Since we know the dimensions of the first container, we can calculate its volume.

[tex]V_1= 5 \text{cm} \cdot 4 \text{cm} \cdot 4 \text{cm} = 80 \text{cm}^3[/tex]

The first container held 192 skittles. Using that fact, now that we know the volume of the first box, we can calculate the volume of a single skittle.

[tex]v = \frac{80}{192} = 0.416 \approx 0.42 \text{cm}^3[/tex]

The second container held 258 skittles.

The volume of the second box is:

[tex]V_2 = 12 \text{cm}\cdot 3 \text{cm} \cdot 3 \text{cm} = 108 \text{cm}^3[/tex]

Using this facts, the volume of a single skittle would be

[tex]v = \frac{108}{258} = 0.418 \approx 0.42 \text{cm}^3[/tex]

Therefore,  the volume of  single skittle is around to 0.42 cm³.

A skittle jar is a cylinder. Its volume is calculated by the formula

[tex]V = r^2h \pi[/tex],

where [tex]r[/tex] is the radius and [tex]h[/tex] is the height. From the given data, we have [tex]r = 3.15 \text{cm}[/tex] and [tex]h = 11.5 \text{cm}[/tex]. Hence, the volume of the jar is

[tex]V = 3.5^2 \cdot 11.5 \cdot 3.14 = 442 \text{cm}^3[/tex]

Now, we can determine the number of skittles in the jar. Let [tex]n[/tex] be the number of skittles in the jar. Then,

[tex]n = \frac{\text{volume of the jar}}{\text{volume of a skittle}} = \frac{V}{v} = \frac{442}{0.42} = 1052.38 \approx 1052\\[/tex]

Final answer:

The best estimate for the number of jelly beans in the jar is approximately 1,000 beans, calculated based on linear dimensions and volume estimation.

Explanation:

The best estimate for the number of jelly beans in the jar would be approximately 1,000 beans.

To estimate this, we first look at linear dimensions and consider a rectangular jar. Assuming the jar is about 10 beans deep, 10 beans wide, and 10 beans high, the volume would be around 10 x 10 x 10, giving us ~ 1,000 beans inside.

Is 60/100 equal fraction

Answers

Answer:

3/5

Step-by-step explanation:

60/100 = 6/10 ( given by 10th table) = 3/5  (give by 2nd table)

If a population consists of 54,000,000 people and a census is taken, how many people are sampled?

Answers

Answer:

A.54,000,000

Step-by-step explanation:

apexs

Can someone Help Me With The Answers?

Answers

Answer:

5 1/3 x 2 3/4= 3/4 5 x 2 = 10

Step-by-step explanation:

Multiply fractions 1/3 x 3/4= 3/4

If a = 6 and c = 15, what is the measure of ∠A? (round to the nearest tenth of a degree)

Answers

Answer:13.7 degrees

Step-by-step explanation:

a^2+b^2=c^2

15^2-6^2=189

[tex]\sqrt{189\\[/tex]

13.7 degrees

Why can't you use the product of powers rule to simplify
this expression? Explain.
3^4•2^8

Answers

To use the product of powers rule, the powers must have the same base. In this expression, the bases are 3 and 2, which are different, so the rule does not apply.

what is the geometric mean of 2 and 135

Answers

[tex]\bf \stackrel{\textit{geometric mean of 2 and 135}}{\cfrac{2}{x}=\cfrac{x}{135}\implies 270 = x^2}\implies \sqrt{270}=x[/tex]

(4x2 – 9x - 1) + (x2 – 5x – 3)

Answers

Answer:

5x^2-14x-4

Step-by-step explanation:

(4x^2-9x-1)+(x^2-5x-3)

4x^2+x^2-9x+(-5x)-1+(-3)

5x^2-9x-5x-1-3

5x^2-14x-4

_y =-2x +7
Do any of y’all know the y intercept

Answers

y=0

y=2x+7

x= 7/2 =3.5

- 2×3.5+7 =0

0=- 2×3.5+7

y. x

The y intercept is always the constant.
In this case, it will be 7
You know this because the only time the line will intersect at the y axis is when x is 0
So
y=2(0)+7
y=7

James needs to mix a 20% fungicide solution with a 60% fungicide solution to create 200 milliliters of a 26% solution. How many milliliters of each solution must James use?

Answers

170 ml of 20 % fungicide solution is mixed with 30 ml of 60% fungicide solution  to create 200 milliliters of a 26% solution

Solution:

The final solution has 200 ml

Let "x" be the ml of 20 % fungicide solution

Then, (200 - x) is the ml of 60% fungicide solution

Then according to question, we can say,

"x" ml of 20 % fungicide solution is mixed with (200 - x) ml of 60% fungicide solution to get 200 ml of 26 % solution

We can frame a equation as:

[tex]x \times 20 \% + (200-x) \times 60 \% = 200 \times 26 \%\\\\\text{Solve the equation for "x" }\\\\x \times \frac{20}{100} + (200-x) \times \frac{60}{100} = 200 \times \frac{26}{100}\\\\\text{Simplify the above expression}\\\\x \times 0.2 + (200-x) \times 0.6 = 26 \times 2\\\\0.2x + 120 - 0.6x = 52\\\\-0.4x = 52 - 120\\\\-0.4x = -68\\\\x = 170[/tex]

Thus 170 ml of 20 % fungicide solution is used

Then , (200 - x) = 200 - 170 = 30 ml of 60% fungicide solution is used

Final answer:

James needs to mix 160 milliliters of the 20% solution with 40 milliliters of the 60% solution, in order to achieve a 26% solution in a total volume of 200 milliliters.

Explanation:

To solve the problem, set up two equations based on the total volume and the percentage of the fungicide.

Let x be the volume of the 20% solution, and y be the volume of the 60% solution. Hence, the equation based on volume is x + y = 200 (since the total volume is 200 milliliters).The second equation will be based on the percentage of the fungicide in the solution as follows: 0.20x + 0.60y = 0.26*200 (reflecting the fact that James wants a 26% solution).

Solving these two equations simultaneously, we get x = 160 milliliters and y = 40 milliliters.

Therefore, James needs to mix 160 milliliters of 20% fungicide solution and 40 milliliters of 60% fungicide solution to get a 26% solution of 200 milliliters.

Learn more about Mathematical Problem Solving here:

https://brainly.com/question/32199704

#SPJ3

Which ordered pair can be plotted together with these four points, so that the resulting graph still represents a function?
A.(-2,2)
B.(-1,2)
C.(2,-2)
D.(2,-1)

Answers

Answer:

B.(-1,2)

Step-by-step explanation:

In a function, there can not be two different values of y corresponding to the same value of x.

See the graph attached.

Here, the points on the graph are (1,2), (2,-3), (-2,-2) and (-3,1).

If we consider point (-2,2) then there will be two points corresponding to the same x value i.e. (-2,-2) and (-2,2).

Similarly, if we consider the point (2,-2) or (2.-1) then also there becomes more than one values of y for a single value of x i.e. x = 2.

So, if we consider the ordered pair (-1,2) then only the graph still represents a function. (Answer)

Answer:

B.(-1,2)

Step-by-step explanation:

Every item in the Just a Dollar store is priced at $1.00. When Mary Jo opens the store, there is $125.50 in the cash register. When she counts the money in the cash register at the end of the day, the total is $1,085.60. If the sales tax rate is 8.5%, howmany items were sold that day?

Answers

Answer:

885

Step-by-step explanation:

Given:  Amount available in the cash register= $ 125.50.

            Every item is just priced at $1.00

            Total amount of money at the end of day= $1085.60

            Sales tax rate= 8.5%

First finding total revenue generated at the end of day,

Total revenue at the end of day= [tex]Total\ cash\ at\ the\ end\ of\ day - Cash\ available\ at\ the\ beginning\ of\ day[/tex]

∴ Total revenue at the end of day= [tex]1085.6- 125.5= \$ 960.1[/tex]

Lets assume total number of item sold be "x".

Now, forming an equation to determine the total revenue generated at the end of day.

We know, Total revenue is the number of item sold at $1 and sales tax revenue generated on the number of item sold.

⇒ [tex]\$1 \times x + \frac{8.5}{100} \times x= \$ 960.1[/tex]

⇒[tex]1x+0.085x= 960.1[/tex]

⇒ [tex]1.085x= 960.1[/tex]

dividing both side by 1.085

⇒[tex]x= \frac{960.1}{1.085}[/tex]

∴ x= [tex]884.884[/tex] [tex]\approx 885[/tex]

Hence, total number item sold in the day is 885

Select the correct answer.
Which expression gives the same result as ?
A.

B.

C.

D.

Answers

What are the choices, it’s blank.

Answer: A. would give the same result as the blank space as generally, when you think the answer is A. you should double check that as teachers know that students will always guess A in a pinch.

Hope this helps!    :)

Step-by-step explanation:

Find the sum of the polynomials 3x^5y – 2x^3y^4 - 7xy^5 and -8x^5y+ 2x^3y^4+xy^3

Answers

Answer:

the degree of a polynomial is the highest exponent in a term

thus it'd be 7 cuz

2x^3y^4

4 + 3 = 7

Step-by-step explanation:

I think thats write, not completly sure if its wrong lmk

what is the value of the first 4 in this...4,384,488?​

Answers

400
4=400(correct)
4=4000
4=4000000

how many roots exist for this polynomial function? F(x) = 4x5 – 3x​

Answers

there is 5 roots  hope it helps

2X plus 8Y minus 3X +9+2y

Answers

Something maybe 13 or so like

What is the simplified value of the expression below rounded to the nearest hundredth?
3.5x2+9
10.4-14X2
0 0.28
0.89
1.91
02.11

Answers

Answer:

The correct answer is D. 2.11

Correct statement and question:

What is the simplified value of the expression below rounded to the nearest hundredth?

(3.5x2+9)/(10.4-1.4x2)

Source: Previous question that can be found at brainly

Step-by-step explanation:

Let's solve and simplify, this way:

(3.5 x 2 + 9)/(10.4 - 1.4 x 2)

=(7 + 9)/(10.4 - 2.8)

= 16/7.6

= 2.11 (Rounding to the next hundredth)

The correct answer is D. 2.11

Answer:

its d

Step-by-step explanation:


Where is the point of concurrency of the angle bisectors of a triangle?
A.on the triangle
B. outside the triangle
c. inside the triangle
please help me

Answers

Answer:

The point of concurrency of the angle bisectors of a triangle is inside the triangle.

Step-by-step explanation:

Considering the triangle ΔABC as shown in attached figure.

As it is clear that

The three angle bisectors of a triangle intersect at one point. Incenter is basically the point of concurrency of the angle bisectors.Each point on the angle bisector is at equal distance from the sides of the angle.

As the triangle's incenter is always located inside the triangle, so we can conclude that the point of concurrency of the angle bisectors of a triangle is inside the triangle.

Therefore, the point of concurrency of the angle bisectors of a triangle is inside the triangle

Please check the attached figure below.

Keywords: angle bisectors of a triangle, point of concurrency

Learn more about point of concurrency of angle bisectors from brainly.com/question/3158572

#learnwithBrainly

15 is 37.5 of what number

Answers

Answer:

40

Step-by-step explanation:

15 / 37.5% = 40

3,425,645 rounded to the nearest hundred thousand

Answers

Answer:

3,400,000

Step-by-step explanation:

refer to attached for reference

in our case, the digit in the hundred thousands place is the number 4.

How we round this digit depends on the digit directly to the right of it (i.e the ten-thousands place).

If the digit to the right is less than 5, then leave the digit in the hundred thousands place the same and make everything else to the right zeros.

if the digit to the right is 5 or greater, then increase the digit in the hundred thousands place by 1 and then make everything else to the right zeros.

in our case, the digit to the right of the hundred thousands place is the number 2, this is less than 5, so we leave 4 the same and make everything esle to the right zero.

i.e. 3,400,000

Final answer:

3,425,645 rounded to the nearest hundred thousand is 3,400,000. The rounding is based on the digit in the ten thousand's place, which is 4 in this case, so we round down.

Explanation:

To round the number 3,425,645 to the nearest hundred thousand, we look at the ten thousand's place which is 2. Since this digit is less than 5, we round down the hundred thousand's place. Therefore, 3,425,645 rounded to the nearest hundred thousand is 3,400,000.

When rounding to the nearest hundred thousand, the digit in the hundred thousand's place becomes the focus. If the digit in the ten thousand's place (to the right of the hundred thousand's place) is 4 or less, the hundred thousand's digit remains the same and all subsequent digits become zero. If the ten thousand's place is 5 or more, the hundred thousand's digit is increased by one, and again, all digits to the right are changed to zero.

In this example, the hundred thousand's digit is 3 and the ten thousand's digit is 4, which tells us to keep the hundred thousand's place as it is and replace the subsequent digits with zeros. This gives us 3,400,000 as the rounded number.

help me plzzzzzzzzz!!!!!!!!!!!!!!!!!!

Answers

Answer: ( 12 , 9 )

Step-by-step explanation:

The formula for finding the coordinate of points when a line is externally divided in a given ratio is given by :

x = [tex]\frac{p x_{2}+q x_{1}}{p+q}[/tex]

y = [tex]\frac{p y_{2}+q y_{1}}{p+q}[/tex]

From the question

[tex]x_{1}[/tex] = 2

[tex]x_{2}[/tex] = ?

x = 4

[tex]y_{1}[/tex] = -1

[tex]y_{2}[/tex] = ?

y = 1

p = 1

q = 4

substituting the values into the formula ,we have

x = [tex]\frac{p x_{2}+q x_{1}}{p+q}[/tex]

4 = [tex]\frac{1(x_{2})+4(2) }{1+4}[/tex]

4 = [tex]\frac{x_{2}+8}{5}[/tex]

[tex]x_{2}[/tex] + 8 = 20

[tex]x_{2}[/tex] = 12

Also

y = [tex]\frac{p y_{2}+q y_{1}}{p+q}[/tex]

1 = [tex]\frac{y_{2}+4(-1)}{5}[/tex]

[tex]y_{2}[/tex] - 4 = 5

[tex]y_{2}[/tex] = 9

Therefore , the end of the stencil is located at point ( 12 , 9 )

Factoring a polynomial reverses the process of __________________ two polynomials.

Answers

Answer:

Factoring a polynomial involves writing it as a product of two or more polynomials. It reverses the process of polynomial multiplication.

Step-by-step explanation:

Factoring a polynomial is the reverse of multiplying two polynomials and involves reversing the distributive law, returning an expression to its original factors or multiples.

Factoring a polynomial reverses the process of multiplying two polynomials. When you factor a polynomial, you are essentially reversing the distributive law and turning an expression back into its factors or multiples. An expression is a mathematical phrase that can include numbers, variables (abbreviated as var), and the product or quotient of these, all separated by plus or minus signs. Factoring out common components helps to simplify an expression, just as using factors of ten can help to assess differences and cancel out units in algebra.

Factoring polynomials is a crucial part of algebraic manipulation, allowing us to find expressions that, when evaluated, produce the same value. This operation is important in solving equations and can also reveal interesting properties of numbers, especially within the complex number system. For example, second-order polynomials may have two roots and can be factored, such as x² + 1 which can be factored into (x - i)(x + i), where i is the imaginary unit.

Find the indicated side of the triangle !!!

Answers

Answer:

The correct answer is b = 6 √3 units

Step-by-step explanation:

Let's recall that we can use the following ratio for the sides of a 90 - 60 - 30 triangle:

1 : √3 : 2, where 2 is the hypotenuse.

Upon saying that, we have that in our triangle:

Hypotenuse = 12 units

a = 6 units

b = 6 √3 units

The correct answer is b = 6 √3 units

Answer:

b = 6

Step-by-step explanation:

The above questions is trigonometry where hypothenus = 12; opposite = b; and adjacent = a. Applying SOHCAHTOA principle, the appropriate is

Sine = opposite/hypothesis, since we are to find the value of b. Thus,

Sine 30 = b/12

0.5 =b/12

By cross multiplying,

b = 0.5 × 12

b = 6

A model house is 12 inches wide. If it is built with a scale of 3 in : 20 feet, then how wide is the real house?​

Answers

Answer:

80 inches wide

Step-by-step explanation:

3 inches = 20 feet. 12/3=4. 4*20=80 inches

I need help with filling in first y variable please

Answers

Answer: 5

Step-by-step explanation:

)$;&&;:)&!;$:!:&:?($;!:!::99

Answer:

In the given equation : y= 128-4x (select the coordinate and plug in the x and y)

                                       y= 128-4(0)

                                       y= 128-0

                                       y= 128

Therefore, the value for y is 128

                                     

How many hundredths are in 539.26? Is the answer 53,926

Answers

Answer:

there are 6 hundredths

Step-by-step explanation:

the 6 is in the hundredths decimal place so the answer would be 6

Answer:

53926

Step-by-step explanation:

539.26x100=53926

Given the line below.



Write the equation of the line, in point-slope form. Identify the point (-2, -2) as (x1, y1). Use the box provided to submit all of your calculations and final answer.

Answers

Answer:

The equation of the line in point slope form is equal to

[tex]y+2=(x+2)[/tex]

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Find the slope

The formula to calculate the slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

we have

(-2,-2) and (2,2)

substitute the values

[tex]m=\frac{2+2}{2+2}=1[/tex]

step 2

Find the equation of the line in point slope form

[tex]y-y1=m(x-x1)[/tex]

we have

[tex]m=1\\(x1,y1)=(-2,-2)[/tex]

substitute the values in the formula

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

[tex]y+2=(x+2)[/tex]

Trey is making a small sign in the shape of a triangle for her store. He wants the height of the triangle to be 8 inches. The area of the sign must be less than 20 square inches. (Trey doesn't want to buy more material.) Write an inequality that describes the possible base lengths (in inches) of the triangle. Use b for the base length of the triangular sign.

Answers

Answer:

8+b=20

Step-by-step explanation:

Everyday Jin reads for 0.75 hours in the mornings and 1.25 hours in the evening. He uses the expression 0.75d + 1.24d to keep track of the number of hours he has read for any number of days, d. If Jim reads for 20 days, how many hours has he read?

Please please please answer. Overdue

Answers

Answer:

Step-by-step explanation:

0.75d + 1.25d.......for 20 days

0.75(20) + 1.25(20) = 15 + 25 = 40 hrs <===

The number of hours Jin reads in 20 days is 39.8 hours.

The expression for the given situation is 0.75d + 1.24d.

What is an expression?

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

In the given expression 0.75d + 1.24d, d is number of days.

Substitute d=20 in 0.75d + 1.24d, we get

0.75(20) + 1.24(20)

= 15+24.8

= 39.8 hours

Hence, the number of hours Jin reads in 20 days is 39.8 hours.

To learn more about an expression visit;

https://brainly.com/question/28170201.

#SPJ2

Other Questions
a circle has a circumference of 44 metres what is its area How many genes code for hemoglobin? a square solar collector measures 6.00 m by 6.00 m and another solar collector measures 8.000 m by 8.000 m. using the correct number of significant figures what is the combined area of both collectors?a) 1.0010^2b) 1.0 10^2c)110^2d) 1.000x10^2e) 1.0000x10^2 The graph shows a demand curve. Demand CurvePrice$20.00$17.50$15.00$12.50$10.00$7.50$5.00$2.50102030405060Quantity DemandedWhat does the data shown in this graph represent?Oa decrease in quantity demanded as prices decreasean increase in price as quantity demanded decreasesa decrease in income as quantity demanded increasesan increase in quantity demanded as prices decrease Who invented the first water bottle? A parallel-plate capacitor is constructed of two square plates, size L x L, separated by distance d. The plates are given charge Q.a. What is the ratio Ef/Ei of the final to initial electric field strengths if L is doubled? A 27.40 g sample of liquid mercury is initially at 158.30C. If the sample is heated at constant pressure ( = 1 atm), kJ of energy are needed to raise the temperature of the sample to 376.20C. How much energy in kJ is required? Complete the proof to show that ABCD is aparallelogram.BC || AD and CD || B because theTherefore,ABCD is a parallelogram because both pairs of oppositesides are parallelB(-3,4)_C(2,2)lengths of consecutive sides are not equalslopes of opposite sides are equallengths of opposite sides are equalslopes of consecutive sides are not equal-5-4-3A(-2,-2)D(3-4)The slope of is 4-2--The slope of AD is 4-4-3) -2 - -Save and ExitNextSubunit Please help.....no one would help me so PLZZZZ Which of the following is an example of social capital? a) professional licensure b) country club membership c) postdoctoral training d) playing the piano Marcos mom gave him d dollars for his allowance one week. he also earned $14.55 for his newspaper route that week. How much money does Marco have? Write your answer as an expression. Original Source MaterialIn a complex task such as creating a website for learning, instructors may want to support the generation of multiple solutions in learners' peer feedback. Anonymity may create a social context where learners feel freer to express varied ideas, and make the task of giving feedback less inhibited. However, teachers need to know just how anonymity impacts the learning dynamic in order to make informed choices about when anonymous configurations are appropriate in peer feedback.Student VersionIncreased availability of technology in my classroom makes it easier for peer feedback activities to be conducted anonymously which "may create a social context where learners feel freer to express varied ideas, and make the task of giving feedback less inhibited" (Howard, Barrett, & Frick, 2010, p. 90). However, I worry that my students may be overly harsh if they don't have to stand by their comments.References:Howard, C. D., Barrett, A. F., & Frick, T. W. (2010). Anonymity to promote peer feedback: Pre-service teachers' comments in asynchronous computer-mediated communication. Journal of Educational Computing Research, 43(1), 89-112.Which of the following is true for the Student Version above? Suppose at the beginning of the year, a textbook book sells for 60 in Paris, France, and $60 in New York City, and PPP holds. Over the year, there is an inflation rate of 10 percent in France and no inflation in the United States. What exchange rate would maintain PPP at the end of the year? Determine if the function f(x) = 4x 3x satisfies the Mean Value Theorem on [4, 49]. If so, find all numbers c on the interval that satisfy the theorem.a) c = 812b) c = 814c) c = 818d) c = 814 Round 63.094 to one decimal place What is the value of x after each of the following statements is encountered in a computer program, if x=1 before the statement is reached? Please, justify your answer.a) if (1+2=3) then x:=x+1b) if ((1+1=3) OR (2+2=3)) then x:=x+1c) if ((2+3=5) AND (3+4=7)) then x:=x+1 There are 100 consumers, each of whom values a concert ticket at a unique whole number dollar amount between $1 and $100. One customer is willing to pay $1, a second is willing to pay $2, a third is willing to pay $3, and so on. An unlimited number of concert tickets are on sale for $15 each. Create a simple demand curve to represent this scenario and using that curve calculate the total consumer surplus. What is the total consumer surplus in this market? A) $3,612.50 B) $4.250.00 C) $4,887.50 D) $5,000.00 Humans need clean air, freshwater, food, and shelter to survive.a. How could one person living alone in the wilderness obtain food without helpfrom anyone else? (2 points)b. How could many people living in a community obtain food? (2 points)c. How could living in a community increase the survival rate of individuals whenit comes to obtaining food resources? (1 point)I'll mark brainlest g According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? At 75 km depth, rocks will be heated to about _______ degrees Celsius. Identifying the Parts of the Cost Formula; Calculating Monthly, Quarterly, and Yearly Costs Using a Cost Formula Based on Monthly DataGordon Company's controller, Eric Junior, estimated the following formula, based on monthly data, for overhead cost:Overhead Cost = $150,000 + ($52 x Direct Labor Hours)Required:12. If next month's budgeted direct labor hours equal 8,000, what is the budgeted overhead cost?$3. If next quarter's budgeted direct labor hours equal 23,000, what is the budgeted overhead cost?$4. If next year's budgeted direct labor hours equal 99,000, what is the budgeted overhead cost?$ Steam Workshop Downloader