Please help asap! Will give brainliest! Please read the question then answer correctly! No guessing.

Please Help Asap! Will Give Brainliest! Please Read The Question Then Answer Correctly! No Guessing.

Answers

Answer 1

Answer: C

Step-by-step explanation:

[tex]x^2+4x-21\\(x+7)(x-3)[/tex]

Answer 2

Answer: The correct answer is C.

Step-by-step explanation: If you factor the equation using the AC method, you will get this answer. Multiply A by C. For example, you would multiply 4 by 5 to get 20. List the factors of your answer from step two. That is, list pairs of numbers that you could multiply to come up with that answer. For instance, in the case of 20, you would have the following factors: (1, 20), (2, 10), (4, 5).

Find a pair of numbers among the factors that adds up to the B term in the equation. For this example, you must find a pair that adds up to 9. Therefore, you would isolate the pair (4, 5).

Replace the middle term (the B term) with the two numbers from the pair, along with the original variable that went with the B term. For example, you would write: 4x^2 + (4+5)x + 5 = 4x^2 + 4x + 5x + 5.

Group the first two terms and the last two terms together as such: (4x^2 + 4x) + (5x + 5).

Simplify the equation by finding terms that are common for each side. For instance, you would simplify (4x^2 + 4x) + (5x + 5) to 4x(x + 1) + 5 (x + 1). This would further simplify to (4x + 5) (x + 1).


Related Questions

Anyone knows the answer?

Answers

Answer:

E

Step-by-step explanation:

so you put the square root of 10 and then it will give you a decimal

Answer:

F

Step-by-step explanation:

when you put in 10 you get

3.16227766017 to the nearest number is 3.2

How many solutions does the equation -2a + 2a + 7 = 8 have

Answers

Step-by-step explanation:

-2a + 2a + 7 = 8

Solving like terms

7 = 8

= 8 - 7 = 1

Has one solution

What is the number of possible permutations of 5 objects taken 2 at a time? A. 10 B. 20 C. 60 D. 120

Answers

Answer:

B. 20

Step-by-step explanation:

5P2 is equal to 20 using the permutation formula.

If the fish tanks dimension are 60 by 15 by 34 and its is completely empty, what volume of water is needed to fill three fourths of the aquarium? Please help

Answers

Answer:

22,950 units³

Step-by-step explanation:

All you have to do is:

[tex]\frac{3}{4} *60*15*34=\\45*15*34=\\675*34=\\\\22,950[/tex]

What number is 4 time another. The sum of the reciprocals is 15/4. find the numbers

Answers

Answer:

3/4 , 3

Step-by-step explanation:

Let one number = x

Other = 4x

Sum:

x + 4x = 15/4

5x = 15/4

x = 3/4

Thus the numbers are 3/4 , 3

The area of a round table in Kim’s living room is 201 square inches. What is the circumference of the round table, to the nearest hundredth of an inch? A.100.49 inchesC.50.24 inchesB.89.03 inchesD.25.12 inches

Answers

Answer:

C. 50.24 inches

Step-by-step explanation:

The area of a circle can be represented by [tex]\pi r^{2}[/tex]. To find the circumference, all we need to do is know the radius, and then we can plug that value into the circumference formula [tex]2\pi r[/tex]. So, to find the radius we see that:

[tex]\pi r^{2} = 201[/tex]

[tex]r = \sqrt{\frac{201}{\pi } }[/tex]

So, the circumference is:

[tex]2\pi (\sqrt{\frac{201}{\pi } })[/tex], which is closest to the answer C) 50.24 inches.

Hope this helped! :)

A box below needs to be painted. ​

​How many square inches of paint will be needed to cover the entire surface?



A
80/12 in2
B
61/9 in2
C
49/5 in2
D
77/55 in2

Answers

Answer: c

Step-by-step explanation:

Answer:B

Step-by-step explanation:

(1 point) The volume of the solid obtained by rotating the region enclosed by x=2y,y3=x(with y≥0) about the y-axis can be computed using the method of disks or washers via an integral V=∫ba ? with limits of integration a= and b= . The volume is V= cubic units. Note: You can earn full credit if the last question is correct and all other questions are either blank or correct.

Answers

[tex]x=2y[/tex] and [tex]x=y^3[/tex] intersect when

[tex]2y=y^3\implies y^3-2y=y(y^2-2)=y(y-\sqrt2)(y+\sqrt2)=0[/tex]

[tex]\implies y=0\text{ or }y=\sqrt2\text{ or }y=-\sqrt2[/tex]

We omit the negative root, since we only care for [tex]y\ge0[/tex].

In the interval (0, √2), we have [tex]y^3<2y[/tex]. Then the volume is given by the integral

[tex]\displaystyle\pi\int_0^{\sqrt2}(2y)^2-(y^3)^2\,\mathrm dy=\pi\int_0^{\sqrt2}4y^2-y^6\,\mathrm dy[/tex]

and so the volume is (32√2)/21 π.

A firm produces two types of earphones per year: x thousand of type A and y thousand of type B. The cost function (in thousands of dollars) is given by
C(x,y)=110+80x+130y
If the selling price of type A is p and the selling price of type B is q, the price-demand equations are
p=120-3x+y
q=210+x-7y
Determine how many of each type of earphone should be produced per year to maximize profit? What should be the selling prices p and q? What is the maximum profit?

Answers

Answer:

9000 A and 7000 B should be producedp = 100, q = 170$350,000 is the maximum profit

Step-by-step explanation:

We assume that "p" and "q" are given in dollars, so that the profit function (in thousands of dollars) can be written:

  P = xp +yq -C(x, y)

Profit will be maximized when the partial derivatives of P with respect to x and y are both zero:

  ∂P/∂x = p +x(∂p/∂x) +y(∂q/∂x) -∂C/∂x = 0

  (120 -3x +y) +x(-3) +y(1) -80 = 0

  -6x +2y +40 = 0

  3x -y = 20 . . . . put in standard form

and ...

  ∂P/∂y = x(∂p/∂y) +q +y(∂q/∂y) -∂C/∂y = 0

  x(1) +(210 +x -7y) +y(-7) -(130) = 0

  2x -14y +80 = 0

  x -7y = -40 . . . . put in standard form

__

The solution to these simultaneous equations can be found a variety of ways. Using Cramer's Rule, we have ...

  x = ((-1)(-40) -(-7)(20))/(-1·1-(-7)(3)) = 180/20 = 9

  y = (20(1) -(-40)(3))/20 = 140/20 = 7

9000 type A and 7000 type B earphones should be produced.

__

The corresponding selling prices are ...

  p = 120 -3(9) +7 = 100

  q = 210 +9 -7(7) = 170

The selling prices should be ...

  p = $100, q = $170

__

The maximum profit is ...

  P = xp +yq -C(x, y) = (9)(100) +(7)(170) -(110 +80(9) +130(7))

  P = 9(100 -180) +7(170 -130) -110 = 180 +280 -110

  P = 350

The maximum profit is $350,000.

Study the example shown below:
Which expression should replace the word "numerator" in the work shown?
2x-8 x-3
x2 - 7x+10 x2- 7x+10
2x-8-(x-3)
x2 - 7x+10
numerator
(x-2)(x-5)​

Answers

Answer:

x-5

Step-by-step explanation:

got it right

The expression to replace the numerator is (x - 5).

Option B is the correct answer.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

(2x - 8 - (x - 3)) / (x² - 7x + 10)

= (2x - x - 8 + 3) / (x - 2) (x - 5)

= (x - 5) / (x - 2) (x - 5)

Thus,

The numerator is (x - 5).

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

Karla has 3 gallons of paint. Bryant has 10 quarts of paint. How many more pints of paint does Karla have than Bryant?

Answers

Answer: 4

Step-by-step explanation:

First you need to convert to pints.

Your conversion factors are:

1 gallon = 8 pints

1 quart = 2 pints

[tex]3gallons(\frac{8pints}{1gallon}) =24pints[/tex]

[tex]10quarts(\frac{2 pints}{1quart})=20pints[/tex]

To find the difference, subtract.

24-20=4

Not sure on how to do these questions

Answers

Answer:f(8)=g(8)

Step-by-step explanation:

So in these problems f(8) means that you look at the f(x) function (function 1) and plug in 8 for x.  Then since it says g(8), you look at the g(x) function and substitute x for 8.  If we do that, f(x)=2(8)-3 which is 13.  g(x)=3/2x+1=13.  The two of them are equal when x=8.  So the answer is the third choice

Answer:

f(8)=g(8)

Step-by-step explanation:

Just put the values of given functions in the equation

Describe each pattern formed. Find the next three terms. 4,8,16,32

Answers

Answer:

The pattern is multiplying by 2.

Next three terms: 64,128,256

Step-by-step explanation:

4,8,16,32

To get from 4 to 8 we can multiply by 2.

To get from 8 to 16 we can multiply by 2.

To get from 16 to 32 we can multiply by 2.

So the pattern is multiplying by 2.

To find the next three terms:

32*2=64

64*2=128

128*2=256

Approximate the 5839 to the nearest
1:Ten
2:hundred
Thousand 3:

Answers

Answer:

(1): nearest ten is 5840

(2):nearest hundred is 5800

(3):nearest thousand is 6000

Step-by-step explanation:

For nearest ten we get 5840

For nearest hundred we get 5800

For nearest thousand we get 6000

2. Heather made 35
cookies for a party. Ted
made 30 cookies. At
the party 47 cookies
were eaten. How many
cookies are left?​

Answers

Answer:

18

Step-by-step explanation:

The total number of cookies that were made

35+30 = 65

The cookies that were eaten is 47

65-47 =18

There were 18 cookies left

Answer:

$18

Step-by-step explanation:

35+30=65

65-47=18

Daryl wishes to save money to provide for his retirement. He is now 30 years old and will be
retiring at age 64. Beginning one month from now, he will begin depositing a fixed amount into
a retirement savings account that will earn 12% compounded monthly. Then one year after
making his final deposit, he will withdraw $100,000 annually for 25 years. In addition, and after
he passes away (assuming he lives 25 years after retirement) he wishes to leave in the fund a sum
worth $1,000,000 to his nephew who is under his charge. The fund will continue to earn 12%
compounded monthly. How much should the monthly deposits be for his retirement plan?

Answers

Answer:

Step-by-step explanation:

Today's Age = 30

Retirement Age = 64

Total Monthly Deposits = ( 64 - 30 ) * 12 = 408

In case of 12% Compounded Monthly , Interest Rate per month = ( 12% / 12 ) = 1%

Effective Interest Rate per year = ( 1 + 0.12/12 )12 - 1 = 1.1268 - 1 = 0.1268 = 12.68%

Present value of Annual 25 Years withdrawal of $100,000 at time of Retirement = $100,000 * PVAF ( 12.68% , 25 )

= $100,000 * 7.4864

= $748,642.20

Present Value of Money for nephew at time of Retirement = $1,000,000 * PVF ( 12.68% , 25 )

= $1,000,000 * 0.050535

= $50,534.52

Now the Present Value of total Amount Required at time of Retirement = $748,642.20 + $50,534.52

= $799,176.70

Now the monthly deposit be X

= X * FVAF ( 408 , 1% ) = $799,176.70

= X * 5752.85 = $799,176.70

X = $138.918

Therefore Monthly Deposit = $138.92

I have the brainy app on my phone, and I have plus on my phone, but when I try to log in on my computer< it says I still need to upgrade, how do I use brainy plus on my computer?

Answers

to use brainy plus on your computer you need to log in with the same account you used on the phone

Answer:

try to restart and delete then re download the app:)

Step-by-step explanation:

What’s the correct answer for this?

Answers

Answer:

perpendicular linesssssssss

The answer is B. perpendicular lines. This is because only perpendicular lines can form 4 congruent angles when they intersect (all 4 angles will be 90 degrees).

a line is perpendicular to y=-4x-2 and intersects the point (0,9). what is the equation for this perpendicular line?

Answers

Answer:

y=(1/4)x + 9      OR      y=x/4 +9

Step-by-step explanation:

Perpendicular lines have a slope/gradient of -1/n

Because the slope of this line is -4, the slope of a line perpendicular to it would be 1/4.

y=(1/4)x+b

(0,9) is the y-intercept, so b = 9

y=(1/4)x + 9      OR      y=x/4 +9

How do you determine similarities in shapes?

Answers

Answer:

Step-by-step explanation:

. if every corresponding internal angles in both shapes are equal

. if all corresponding sides are equal or have same ratio.

more rules but depends on the shape also ( triangle, rectangle, hexagon,...)

What is the axis of symmetry for the graph of y – 4x = 7 – x2 ?

Answers

Answer:

  x = 2

Step-by-step explanation:

A graph shows the axis of symmetry easily. It is the x-coordinate of the vertex.

  x = 2

__

You can rearrange the equation to ...

  y -7 = 4x -x^2

  y -7 = x(4 -x)

The axis of symmetry is halfway between x-values that give the same y-value. Here, y=7 for x=0 and for x=4. That is, the right side of this equation is zero at those x-values. The axis of symmetry is halfway between, at x = (0+4)/2 = 2

The axis of symmetry is x=2.

_____

Alternate solutions

In standard form,

  ax^2 +bx +c = y

the axis of symmetry is ...

  x = -b/(2a)

Putting this equation into that form, we have ...

  -x^2 +4x +7 = y

  x = -(4)/(2(-1))

  x = 2 . . . . axis of symmetry

__

We can rearrange the equation to vertex form.

  y -7 = -x^2 +4x

  y -7 -4 = -(x^2 -4x +4) . . . . . add the square of half the x-coefficient inside parentheses. Add an equal amount to the other side of the equation.

  y -11 = -(x -2)^2

This tells us the vertex of the graph is (2, 11), so the axis of symmetry is x=2.

On the first day of school, each student is given $0.50 to attend. On day two, each student earns $1.00. on day 3, $2.00, etc. How much do students earn on the 9th day

Answers

Answer:

255.50

Step-by-step explanation:

If each day the number is doubled, then all you must do is keep on doubling to the ninth day and then add it all together

day 1 each student is given $0.50
day 2- $1.00
day 3- $2.00
this means every day the amount each student is given doubles from the day before.
day 4- $4.00
day 5- $8.00
day 6- $16.00
day 7- $32.00
day 8- $64.00
day 9- $128.00
so on the 9th day the students would earn $128.00

day 9- $128.00

Steve believes that it takes more meters than centimeters to measure the length of his desk. It is right?

Answers

Answer:

No he is not right because his desk is not that big, and with centimeters it's possible because the centimeters are like more little

answer : D

Easy math, but not sure what I did wrong.
Alex took 31 exams during 5 years studying at the MaPhAs University. Each year, he took more exams than the previous year. During his 5th year, he took three times as many exams as in the 1st year. How many exams did Alex take during his 4th year at the university?

Answers

Answer:

8

Step-by-step explanation:

In his 5th year, he took 3 times as many exams as the first year.  So the number of exams taken in the 5th year must be a multiple of 3.

If a₁ = 1, then a₅ = 3.  However, this isn't possible because we need 4 integers between them, and a sum of 31.

If a₁ = 2, then a₅ = 6.  Same problem as before.

If a₁ = 3, then a₅ = 9.  This is a possible solution.

If a₁ = 4, then a₅ = 12.  If we assume a₂ = 5, a₃ = 6, and a₄ = 7, then the sum is 34, so this is not a possible solution.

Therefore, Alex took 3 exams in his first year and 9 exams in his fifth year.  So he took 19 exams total in his second, third, and fourth years.

3 < a₂ < a₃ < a₄ < 9

If a₂ = 4, then a₃ = 7 and a₄ = 8.

If a₂ = 5, then a₃ = 6 and a₄ = 8.

If a₂ = 6, then there's no solution.

So Alex must have taken 8 exams in his fourth year.

4. The Gold family sold their house for $450,000. They paid a realty
company 6% for selling the house. How much money did they pay the
company? *

Answers

Answer:

27,000

Step-by-step explanation:

$450,000 x 0.06= $27,000

0.06 is the 6% that you multiply by the total amount they earned to see how much they paid the realty company.

Two datasets arranged in descending order are: {8, x, 4,1) and (9. y, 5,2). If the medians of
the two given datasets are equal, what is the value of (y – x)??
Answer​

Answers

Answer:

Legon fo)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Dataset 1 (in increasing order)

{1, 4, x, 8}

Dataset 2 (in increasing order)

{2, 5, y, 9}

Median of dataset 1

[4 + x] / [2]

Median of dataset 2

[5 + y] / [2]

since the medians of the two given sets of data are the same,

=> [4 + x] / [2] = [5 + y] / [2]

=> 2(5 + y) = 2(4 + x)

=> 10 + 2y = 8 + 2x

=> 2y - 2x = 8 - 10

=> 2y - 2x = - 2

=> 2(y - x) = - 2

=> [2(y - x)] / [2] = [- 2] / [2]

denominators and numerators cancel out

=> (y - x) = - 1

Therefore, (y - x) ² = (-1)²

=> (y - x) ² = 1

Multiply (2m+3)(m^2-2m+2)
A) 2m^3-m^2-8m+3
B) 2m^3-m^2-10m+3
C)2m^3-m^2-4m+3
D)2m^37m^2-4m+2

Answers

Answer:

Step-by-step explanation:

The first step is to distribute the 2m and 3 to ([tex]m^2-2m+2[/tex]), like so:

[tex](2m+3)(m^2-2m+2)[/tex]

[tex]2m^3-4m^2+4m+3m^2-6m+6[/tex]

Then, add like terms:

[tex]2m^3 -m^2 -2m + 6[/tex]

PLEASE HELP WITH THIS EASY MATH QUESTION!! it’s down below!!!!

Answers

Answer:

22

Step-by-step explanation:

=x(x+22)

Answer:

The answer is 22

If
f(x) = -4x + 8 and
g(x) = √ x – 1, which statement is true?

Answers

Answer:

-3 is not in the domain of f°g

Step-by-step explanation:

f°g=f(g(x))

f(x) = -4(√x-1)+8

*Remember that √x-1 has to be larger than 0

since √-3-1 = √-4, -3 is not in the domain of f°g

please help Jacqueline is a teacher in Alaska, where she contributes 9% of her earnings to her pension. If her earnings for a school year were $42,000, what did she contribute to her pension?

a.) $3,250
b.) $3,560
c.) $3,780
d.) $3,890

will give brainliest

Answers

Answer:

c.) $3,780

Step-by-step explanation:

9/100 × $42,000

= 9 × $420

= $3,780

Other Questions
The temperature during a winter day was less than 8 degrees Fahrenheit. Digby wants to write an any quality for the temperature during the winter day. What constant should Digby use in the inequality? ILL GIVE YOU BRAINLIST !! * have to get it right * Click on the word that expresses the tone present in each passage. How is the epithelium suited for the substances ? does anyone know the answer to this please ? how do you write a ratio? PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 15 POINTS!!!!!!!!Ron drew this picture to illustrate photosynthesis.Which choice shows the labels he should use on his picture to show what happens during this process? The items in the choices are in order, 1 through 5.A.sunlight, oxygen, water, glucose, carbon dioxideB.sunlight, carbon dioxide, water, glucose, oxygenC.sunlight, carbon dioxide, water, oxygen, glucoseD.carbon dioxide, sunlight, glucose, water, oxygen 2. Most male crickets produce a mating song by rubbing together their curvedwings. In a certain geographic area, parasitic flies detected male crickets singingand deposited their larvae into them, which killed the crickets. Eighteengenerations later, the number of males with flat wings has increased to 90%. Theflat-winged crickets do not sing, but are still able to mate with females, andparasitic flies cannot detect them. Which type of selection is occurring in thiscricket population?OArtificialODirectionalODisruptiveOStabilizing what is the slope of the line that passes through the points (-4,-4) and (-4,-9)? Write your answer in simplest form Renewable resources can be used without worry about consequences to the environment. Why is the telecommunications market so monopolistic? please help! Journalize the following transactions assuming the perpetual inventory system: July 3 Sold merchandise on account for $3,750 terms. The cost of the goods sold was $2,000. July 5 Issued credit memo for $1,050 for merchandise returned from sale on July 3. The cost of the merchandise returned was $610. July 12 Received check for the amount due for sale on July 3 less return on July 5. July 17 Sold merchandise for $7,000 plus 6% sales tax to cash customers. The cost of the goods sold was $3,830. Examine the pattern of the wave shown. What is true about the amplitude and wavelength of the wave when the pattern changes? Which linear function has the same y-intercept as the one that is represented by the graph? Find each pair of similar solids, find the ratio of the volume of the first figure to the volume of the second A circle has a sector with area (3/2) pi and central angle of 60.What is the area of the circle?Either enter an exact answer in terms of it or use 3.14 for it and enter your answer as a decimal. Mr. Eichmann 's salary is $42,000. This year, he receives a raise of 7%. What will be his salary this year? Which of the following are responsible for sending messages from the spinalcord to the brain?A. Motor neuronsB. InterneuronsC. Sensory neurons D. Hormones Patricia and John both used their credit cards to purchase $225.00 worth of gas and groceries for the month of July.Patricia paid off her credit card transactions on the same day that she made them, while John did not. They bothreceived their credit card statements at the same time. Patricia's balance was zero, and she had only paid $225.00 tothe credit card company. However, John had a finance charge of $3.82 added to his balance of $225.00. Explain whyJohn had a finance charge and Patricia did not. Answer in complete sentences. Shaking with rage, Buck lunged again.Identify the verbal phrase.Buck lunged againwith rageO Buck lungedshaking with rage What are the correct years of Marco Polos birth and the year he set sail?