chứng minh: x(4+1/3*x+48)=1440

Answers

Answer 1

Step-by-step explanation:

1

3 x2+52x=1440

Step 2: Subtract 1440 from both sides.

1

3 x2+52x−1440=1440−1440

1

3 x2+52x−1440=0

For this equation: a=0.3333333333333333, b=52, c=-1440

0.333333x2+52x+−1440=0

Step 3: Use quadratic formula with a=0.3333333333333333, b=52, c=-1440.

x=

−b±√b2−4ac

2a

x=

−(52)±√(52)2−4(0.333333)(−1440)

2(0.333333)

x=

−52±√4624

0.6666666666666666

x=24,−180

Answer:

x=24,−180


Related Questions

7/12 divided by 3 3/4

Answers

Answer:

The answer is 7/45

Step-by-step explanation:

First you make 3 3 /4 into an improper fraction which becomes 15/4

Next, you do KFC which is keeping 7/12, making the division sign into multiplication, and then finally you flip 15/4 to 4/15.

Your final answer is 7/45

Hope that helped! Can I also get brainliest? I need a few more to advance, if not thank you anyways and have a nice day!!!

Please help. I'll mark the answer as brainliest.​

Answers

thanks for the points

Step-by-step explanation:

hehe

Which models show the problem 4
6
÷ 2
6
= 2? Check all that apply.


An area model has 4 shaded parts and 2 unshaded parts. 2 circles are each drawn around 2 shaded parts.
A number line going from 0 to 1. An arrow goes from 0.6 to 0.4, and from 0.4 to 0.
A fraction bar. The top bar is labeled 1. 6 bars underneath the bar are labeled one-sixth. 4 of the bars are circled.
An area model has 2 shaded parts and 4 unshaded parts. The 2 shaded parts are circled.

Answers

Answer:

the second and last sentences.

Step-by-step explanation:

Its the most reasonable!

Answer:

It is accutally 1st 2nd and 3rd plz trust me

Step-by-step explanation:

it is the corect

A number p is greater than -3 and less than 4.

Answers

Answer:

- 3 < p < 4

Step-by-step explanation:

Given p is greater than - 3 then - 3 is less than p

- 3 < p < 4

Which of the following represents an equation in standard form for the line that passes through (3, −1) and (−5, −3).

Answers

Answer:

y = ¼x + (-7/4)

Step-by-step explanation:

find the gradient ( M)

M = y2- y1 ÷ x2-x1

M= -3 - (-1)÷(-5)-3 = ¼

the

find C in the equation (y=mx+c)

C = y-mx ( C = -1-¼(3)= -7/4

(use in y and x values provided)

now replace the values you find in the equation (y=Mx+C)

final answer is

y = ¼x+(-7/4)

y = ¼x + (-7/4) is the standard form for the line that passes through (3, −1) and (−5, −3)

What is Slope intercept form?

y=mx=c is the slope intercept form of a line, m is the slope.

We need to find equation of line passing through (3, −1) and (−5, −3)

First we need to calculate slope 'm'.

slope m = y2- y1 / x2-x1

y2=-3, y1=-1, x2=-5, x1=3

m= -3 - (-1)/(-5)-3 = -2/-8=1/4

Equation of line, y=mx+c

find C in the equation (y=mx+c)

C = y-mx

C = -1-1/4(3)= -7/4

now replace the values you find in the equation (y=Mx+C)

y =1/4x-7/4

Hence y =1/4x-7/4 is the equation of line  passes through (3, −1) and (−5, −3).

To learn more on slope intercept form click:

https://brainly.com/question/9682526

#SPJ2

You collect a total of $75 in donations from three people. The three donations are in the ratio 4 : 4 : 7.

Answers

Answer:

20 20 35

Step-by-step explanation:

4+4+7 then divide by 75 whatever answer you get multiplyy by the 4 or the other 4 or the 7

how to find an expression for the perimeter of the rectangle​

Answers

Answer:

Step-by-step explanation:

To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.

so I'm not sure how to draw a square with the area of 3 units

Answers

The area of a square is width x height where both the width and height is the same length because a square has the same lengths on all four sides.

So we can say “3 = L x L” where L is any side length of the square

L times L is just simplified to L squared: “3 = L^2”

We can take the square root of both sides to get rid of the L squared. We are left with “the square root of 3 equals L”.
Sqrt(3) = L

And on a calculator the square root of 3 is 1.73205080757.

1.73205080757 = L.

The square is 4 lines in a box each with the length of 1.73205080757 units.

Find the distance between parallel lines whose equations are y = x - 6 and y = x + 8.

Answers

Answer:

14

Step-by-step explanation:

Distance between y2 = x + 8 and y1 = x - 6

y2 - y1 = (x + 8) - (x - 6) = 14

NEED MORE HELP DUE TOMMOROW ONLY HAVE 15 POINTS SO ITS GOTTA BE 10 CUZ I GOT OTHER QUESTIONS THAT NEED ANSWERING

Answers

Answer:

a: 00:45

b: 7:30 PM

Step-by-step explanation:

Hope this is right

Simplify the following...

Answers

Answer:

a) x

b)[tex]w^{4}[/tex]

Step-by-step explanation:

Answer:34,587

Step-by-step explanation:

A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.

Which equation can be solved to determine x, the number of hours after which the costs would be the same?

50x + 250 = 75x + 100

Answers

Anwer:

x=6

Step-by-Step Explaination:

Evaluate the expression when a = -3 and c=4. a-3c​

Answers

Answer:

Step-by-step explanation:

c=1/4(A-3c)

4c = A-3c

7c = A

c = A/7

-3-3(4)
-3-12=-15

Answer: -15


Hope this helps!

James wants to buy a new cell phone package. There are three packages available, each offering a different deal.Package 1$160 for 4 monthsPackage 2$128 for 4 monthsPackage 3$60 for 2 monthsWhich package offers the best deal?A.Package 3B.Package 1C.Package 2D.Both Package 1 and Package 2

Answers

Answer:

to get which one is the best we have to bring them packages to the same terms

so to do that we have to find what each package offers per month by divided the amount by the number of months

so

160/4= 40

128/4=32

60/2=30

so the best package is

B. package 1

simplify (x+y)(x-y)(x^2+y^2)

Answers

Answer:

x⁴-y⁴

Step-by-step explanation:

=(x+y)(x-y)(x²+y²)

=(x²-y²)(x²+y²)

=x⁴-y⁴

42 divided by (-7) =​

Answers

the answer is -6.

the negative 7 turns the answer negative.

The answer is negative six so (-6) because when you divide a positive number with a negative it becomes a negative

What is the Prime factorization of 321411?

Answers

Answer:

The determined equation for number 321411 factorisation is 3 * 107137.

[tex](1+sin^{2} )cosx+(1+cos^{2} x)sinx=1=sin2x[/tex]

Answers

The answer is = 1 + sin x

Explanation

we need

a^2 - b^2 = (a+b) (a-b)

we use

cos^2 x + sin^2 x = 1

cos^2 x = 1 - sin^2 x = ( 1 + sin x) ( 1 - sin x )

therefore

cos ^2 x over 1 - sin x = 1+ sin x

Suppose you have $20 in a bank account. You start saving $5 each week. Your friend has $5 in his account and is saving $10 each week. Assume that neithet you nor your friend makes any withdrawls.

a) After how many weeks will you and your friend have the sane amount of money
b) How much money will you have when your balances are the same?

Answers

Answer: y = $35 & 3 weeks

Step-by-step explanation:

Answer:

A) 3 week

B) $35

Step-by-step explanation:

$20-$5=15

$20+$15=35

Answer Asap!
<3 THX <3
XOXO Also giving out brainliest!

Answers

(-4,3) original point
(-4,-3) reflect over x axis
(3,4) 90 clockwise
(-8,6) left/up

Dont get this, please help

Answers

Answer:

1. Enlarge, Shrink

2. Smaller

3. Bigger

Step-by-step explanation:

Dilation is something expanding or shrinking, like how your eyes dilate.

Simply think of the scale factor as what you are multiplying the entire figure by. If you are multiplying it by let's say 2, it would double in size, thus getting larger. If you were to multiply it by 1/2, then it would decrease, or shrink, to half its original size.

Answer:

1: enlarge, shrink

2: smaller

3: bigger

Hope this helps! SO sorry if incorrect!!!!!!

What does the number shown below equal to?
-15x = 390

Answers

Answer:

x =-26

Step-by-step explanation:

-15x = 390

Divide each side by -15

-15x/-15 = 390/-15

x =-26

Answer:

X = -26

Step-by-step explanation:

Divide both sides by -15.

390/-15 = -26

X is equal to -26.

( ax + 2 ) ( bx - 4 )

Answers

Answer:

Step-by-step explanation:

(ax + 2 )(bx - 4 ) = ax *(bx - 4) + 2*(bx - 4)

                  = ax*bx - 4*ax + 2*bx - 4*2

                   = abx² - 4ax + 2bx - 8

Answer:

[tex]=ax^2b-4ax+2bx-8[/tex]

Step-by-step explanation:

Solve this

3x + 2 = 26

Answers

Answer:

x=8

Step-by-step explanation:

Answer:

  x = 8

Step-by-step explanation:

Undo what is done to x. We see that x is multiplied by 3 and then 2 added. We undo these steps in reverse order.

  3x +2 = 26 . . . . . . given

  3x = 24 . . . . . . . . . subtract 2 from both sides of the equation

  x = 8 . . . . . . . . . . . divide both sides of the equation by 3

NEED ASAP hurry plz

Write a story that would explain the graph below.

Answers

Answer:

A kid leaping happily to home after school

The graph represents the relationship between height and time.

Given that,
A curve has been shown we have to explain the behavior of the curve.

What is a graph?

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
The curve is shown, where the vertical axis represents the height above the ground and the horizontal axis represents the time. Let's assume a plane of paper is flying, the plane getting a rise and then a certain down and again rise and down as according to the height of the plane.

Thus, the graph represents the relationship between height and time.

Learn more about graphs here:

brainly.com/question/16608196

#SPJ2

137.8×3.5 with explanation

Answers

Answer:

482.3

Step-by-step explanation:

because 137.8 times 3.5 is

482.3

137.8x3.5 is 482.3 because 137.8 3.5s is 482.3

Answer ASAP

angle A and angle B are complementary angles. The measure of angle A is (3x)"
and the measure of angle B is 45°. What is the value of x?

Answers

Answer:

x = 15°

Step-by-step explanation:

Complementary angles are two angles whose sum = 90°

∠A + ∠B = 90°

3x + 45 = 90

3x = 45

x = 45/3

x = 15°

translate the sentence into an inequality.
The product of w and 8 is greater than or equal to -16.

Answers

The inequality would be 8w≥-16

Answer:

8w ≥ -16

It's pretty simple.

Product means it has something to do with multiplication.

≥ This is the greater than or equal to sign.

At last year's company picnic, 25 pounds of ground beef were needed to make 100 hamburgers.

How many pounds of ground beef will be needed this year if 120 hamburgers are to be made?




30 lb

45 lb

50 lb

55 lb]

Answers

Answer:

46lb

Step-by-step explanation:

you take twenty five divide by one twenty

Answer:

30lbs your awnser is that 30 pounds

Dont leave a link hxhdbf

Answers

Answer:

27m^6 n^12

Step-by-step explanation:

Answer:

27m^6n^12

Step-by-step explanation:

3^3 = 27

m^2^3 = m^6

n^4^3 = n^12

Hence, it is

27m^6n^12 (the last option)

Hope this helps and be sure to have a wonderful time at Brainly! :D

Other Questions
los astrnomos / acabar de / detectar / nueva / constelacin I will give brainly! Thank you for helping. How did the Mexican Revolution transform the lives of the Mexican people? A class researching the worlds population would like to include a graph that shows historical changes. They have information from several online media resources.Which options should they choose during their evaluation process? Check all that apply. Find the slope of the line that contains the following pair ofpoints:(-3,-4) and (3,-2). Average speed of a car is 60 km/hr, how far did it travel in 2.5 hours? HEY CAN ANYONE PSL ANSWER DIS RQ!!!!!!!!!!!!!!!!!!!!!!!!! I AM GIVING 30 POINTS yo!!!!!!!! Write the expression 44(4-7)(4) using a singleexponent.O4-28044X4-3O 4-2RETRY How can you test the idea that solar energy is required for the reduction of NADP+ to NADPH? can you make hydroxychloroquine from grapefruit and lemon rinds Match the questions and answers. An ant moves at 14 cm a min. How many minutes will it take him to travel 10 points364 cm? What is the time ? (Write your answer in "t=" form) the constitution states that all revenue bills must originate in Can someone help me with number 18 please!!!! What is the equation of the line that passes through the point (6,14) and is parallel to the line with the following equation? y=-4/3x -1 ALGEBRA question 100 POINTS. Easy who made the first brick? and when was it discovered?please help, and thank you! : ) : Cng ty T chuyn kinh doanh hng ha X, Y. Trong k c mt s nghip v phtsinh nh sau: - Mua 1.500 n v hng ha X nhp kho theo phng thc tr chm, theo thathun ca hp ng Cng ty T s tr chm 6 thng vi gi l $80/hng ha X. Gi muatheo iu khon thng thng l $75/hng ha X. - Mua 2.500 n v hng ha Y nhp kho vi gi mua l $80/sp thanh ton bngchuyn khon. - Chi ph bo qun hng ha X v Y trong kho pht sinh: $1.000 - Chi ph lng cho qun l kho: $1.500 - Xut kho bn 1.000 n v hng ha X v 1.500 n v hng ha Y cho khchhng cha thu tin. n gi bn ln lt l $87/n v hng ha X v $100/ n v hngha Y. Chi ph vn chuyn hng ha bn pht sinh $2.000 trong chi ph vn chuyn cahng ha X l $800 v hng ha Y l $1.200.Yu cu:1. Xc nh gi gc ca hng ha X v Y nhp kho? Bt ton ghi nhn chi ph gi gci vi nghip v tiu th? Bit hng ha X v Y khng c tn kho u k?2. o lng gi tr hng tn kho X v Y nu ti thi im lp bo co ti chnh nmmi n v hng ha X c n gi bn c tnh l $65, mi n v hng ha Y cgi bn c tnh l $75. Chi ph bn hng c tnh hng ha X v Y ln lt l$3/n v hng ha X, $5/n v hng ha Y.3. Ghi nhn cc bt ton lin quan yu c a stock market fell 25 points the following day it dropped another 12 points what was the total change in the stock market after two days -8(0.09)(-0.5)=___? Plz help What is the equation of the line in slope-intercept form?Write your answer using integers, proper fractions, and improper fractions in simplest form.