Mathematics High School

5x^2-22x+8=0
can you find the roots?

Answers

Answer 1

Step-by-step explanation:

Answer 2

Answer:

x = [tex]\frac{2}{5}[/tex], x = 4

Step-by-step explanation:

Given

5x² - 22x + 8 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 5 × 8 = + 40 and sum = - 22

The factors are - 20 and - 2

Use these factors to split the x- term

5x² - 20x - 2x + 8 = 0 ( factor the first/second and third/fourth terms )

5x(x - 4) - 2(x - 4) = 0 ← factor out (x - 4) from each term

(x - 4)(5x - 2) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

5x - 2 = 0 ⇒ 5x = 2 ⇒ x = [tex]\frac{2}{5}[/tex]

Related Questions

write an expression that is equvalient to 3/5 (3y+15)

Answers

Answer:

not mine but yeah <3

Step-by-step explanation:

Which linear inequality represents the graph below?
A. 12-x+1
B. y> -*x+1
C. y24x+1
D.y> 5x+

Answers

The answer is b because you do

ANSWER PLEASE QUICKLY!!!!!!! NOW!!!!

Which situation could NOT represent a proportional relationship?

The amount an employee who makes $9.50 per hour earns in h hours

The weight in x weeks of a puppy that gains 4 pounds per week if its starting weight is 16 pounds

The number of gallons of water in x barrels with 33 gallons of water in each barrel

The cost of purchasing p pounds of bananas for $0.36 per pound

Answers

Answer:

Trump is ugly

Step-by-step explanation:

Trump sucks

Only do number 2

Please help me vote you brainiest

Answers

Answer:

he should use the 5/8 inch wide plank

Step-by-step explanation:

9/16 = 4.5/8 which is smaller than 5/8

The answer will be prime

The answer must be an explanation and equation

Answers

Answer:

(4.91, 3.5)

Step-by-step explanation:

6x+21y=103

-6x+23y=51

44y=154

y=3.5

6x+21(3.5)=103

6x+73.5=103

6x=29.5

x=4.91

(4.91, 3.5)

Answer:

The answer is (4,6) because you would have to eliminate the -6 and 6 to get the y which would be 24y and then divide 154/24 which is roughly 6 and then put that in to get x which is roughly 4

you can also use elimiation for y as well

Write the following numbers as a fraction in its simplest form.

1. 0.218
2. 2.72
3. 0.0005
4. 0.012
ALSO I NEED THIS NOW

Answers

1) 2/10
2)3/10
3).0005/10
4).012/10

What is an equation of the line that passes through the points
(−4,−5) and
(−2,−6)? Put your answer in fully reduced form.

Answers

Answer:

(– 4,– 5) = –9

(– 2,– 6) = –8

what is 54x32
bTW thIS iS foR mY aunT agaIN sO yeaH plZ hElP mEh

Answers

Answer:

1728

Step-by-step explanation:

Answer:

1728

Step-by-step explanation:

54*32=1728

9. The width of a rectangle is six inches less than its length. If the perimeter of this rectangle is 20 inches, find
the width.

1) 6 inches
2) 2 inches
3) 8 inches
4) 4 inches

Answers

If we say the width is x, the length is gonna be x+6.

So the equation of perimeter is gonna be

2(x) + 2 (x+6) = 20

This is gonna be

2x + 2x +12 = 20

4x + 12 = 20

4x = 8

x = 2

The width is 2 inches.

So the answer is 2.

What are the first three common multiples of 3 and 9?

Answers

Answer:

9,18,27

Step-by-step explanation:

9 is a multiple of 3 so the first 3 multiples of 9 are the same as the first 3 multiples of 3 and 9.

Which one is the independent

Answers

i think you forgot to take a picture of the work ma’am.

Answer:

if u post the picture of the question or explain more detail i could help u out

Step-by-step explanation:

need help with question 7. its due at 11:59 pm

Answers

Answer:

Step-by-step explanation:

Find the 82nd term of arithmetic sequence-10,6,22,...

Answers

Answer:

23456787

Step-by-step explanation:

Cora and Cameron are at a pool Carl dives in and touches the bottom of the pool 15 feet below the surface of the water Cameron is standing on a diving platform 2 feet above the service waiting for his turn what is the vertical distance between Carl's and and Cameron's feet

Answers

Answer:

17 feet

Step-by-step explanation:

Here, we want to calculate the vertical distance between Carl’s and Cameron’s feet

Since Carl is at the base of the pool, the distance between the water surface and the base of the pool will be 15 feet

We are also told they Cameron is on a diving platform 2 feet above;

So the distance between the two of them will be ;

15 feet + 2 feet = 17 feet

Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances. ... A pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties

Answers

Answer:

True

Step-by-step explanation:

The above statement is true because a mixture is a combination of two or more substances. and this is done physically ( not chemically as seen in compounds) which in turn gives rise to the varying physical and chemical property that a mixture possess , while a pure substance is inseparable while maintaining a constant physical and chemical property as well

Which equation represents a line which is parallel to the line y = 4x – 5?

Answers

Answer:

Any answer that has the same slope and a different y-intercept

Step-by-step explanation:

They need to have the same slope so that they never intersect

They need to have different y-intercepts so that they are not directly on top of each other

Solve the equation.

10n-100=6n
what is n

Answers

N = 25

10n-100=6n

We move all terms to the left:

10n-100-(6n)=0

We add all the numbers together, and all the variables

4n-100=0

We move all terms containing n to the left, all other terms to the right

4n=100

n=100/4

n=25

-Answer
I think “n” is 6
————————
Explanation-
Because of the question they are asking 10?-100=6?

For the function f(x) = 7x + 5 Find f(-2)

Answers

Answer:

-9

Step-by-step explanation:

f(-2)=7(-2)+5

f(-2)=-14+5

f(-2)=-9

Find the measure of angle one…. PLEASE HELP!!!!!!

Answers

Answer:

Step-by-step explanation:

9x - 5 = 58

9x = 63

x = 7

<2 = 32°

7y + 27 + 58 + 32 = 180

7y + 117 = 180

7y = 63

y = 9

for <1: x + 58 = 180

x = 122°

Gaira was asked to evaluate the algebraic expression –3.8x + 6 when x = –7.5. –3.8(–7.5) + 6(–7.5)Gaira was asked to evaluate the algebraic expression –3.8x + 6 when x = –7.5. –3.8(–7.5) + 6(–7.5) 28.5 + (–45) (–16.5) What mistake did she make 28.5 + (–45) (–16.5) What mistake did she make? What is the correct answer?

Answers

Answer:

See explanation

Step-by-step explanation:

Given

[tex]x = -7.5[/tex]

[tex]Expression: -3.8x + 6[/tex]

Required

Determine Gaira mistake

When Gaira solved the expression, she solved as:

[tex]-3.8x + 6x[/tex]

Giving her

[tex]-3.8x * -7.5 + 6 * -7.5[/tex]

This is incorrect as the correct expression is

[tex]-3.8x + 6[/tex]

and it is solved as follows:

Substitute -7.5 for x in -3.8x + 6

[tex]-3.8x + 6[/tex]

[tex]-3.8 * -7.5 + 6[/tex]

[tex]28.5 + 6[/tex]

[tex]34.5[/tex]

34.5 is the correct solution

Answer:

Gaira made a mistake when substituting the value –7.5 in for x. She multiplied both terms of the expression by –7.5 when she should have only multiplied –3.8 by –7.5. The correct answer is 34.5.

Step-by-step explanation:

Did the ED2020

Can someone please help me with these problems? Will mark brainliest

Answers

Answer:

1/6

2/6 or 1/3

Step-by-step explanation:

A football team has an away game, and the bus breaks down. The coaches decide to drive the players to the game in cars and vans.
Four players can ride in each car. Six players can ride in each van. There are 48 players on the team. The equation 4.3 + 6y = 48
models this situation, where x is the number of cars and y is the number of vans

Answers

Answer 2x and 7y

Step-by-step explanation:

Question:

Find 4 possible solutions in the context of the problem.

The 4 possible solutions in the context of the problem are (0, 8), (3, 6), (6, 3), and (9, 2)

Given the equation that models the situation expressed as:

4x + 6y = 48

We are to find 4 possible solutions for x and y. Note that the values of x and y must be integers.

If there are no cars i.e. at when x = 0

4(0) + 6y = 48

0 + 6y = 48

6y = 48

y = 48/6

y = 8

One of the solution is (0, 8)

If there are 3 cars, i.e. at when x = 0

4(3) + 6y = 48

12 + 6y = 48

6y = 48 - 12

y = 36/6

y = 6

The second solution will be (3, 6)

If there are 6 cars, i.e. at when x = 6

4(6) + 6y = 48

24 + 6y = 48

6y = 48 - 24

y = 24/6

y = 4

The third solution will be (6, 3)

If there are 9 cars, i.e. at when x = 9

4(9) + 6y = 48

36 + 6y = 48

6y = 48 - 36

y = 12/6

y = 2

The fourth solution will be (9, 2)

Hence the 4 possible solutions in the context of the problem are (0, 8), (3, 6), (6, 3), and (9, 2)

Learn more here: https://brainly.com/question/2159099

What is the slope of the line? PLEASE HELP

Answers

the slope of this line is 1

I’m pretty sure the slope would be one but I could be wrong

Evaluate.
3 -1

PLEASE EXPLAIN HOW TO DO THIS!!

Answers

Answer:

-1

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.

The answer would be “undefined”

The Call First cell phone company charges $45 per month and an additional $0.24 for each text message sent during the month. Another cell phone company, Cellular Plus, charges $65 per month and an additional $0.23 for each text message sent during the month.

Answers

Answer:

2000

Step-by-step explanation:

Let [tex]x[/tex] be the total number of text messages sent per month in order for the plans to cost the same each month.

The first cell phone company, The Call, charges $45 per month and $0.24 per text message for the month.

So, the total cost as per the plan of The Call, for x text messages during the month, is

[tex]C_1= 45+0.24x\cdots(i)[/tex]

Another cell phone company, Cellular Plus, charges $65 per month and $0.23 per text message for the month.

So, the total cost as per the plan of Cellular Plus, for x text messages during the month, is

[tex]C_2= 65+0.23x\cdots(ii)[/tex]

As the cost for both the companies are the same, so, compute the number of text messages, x, during the month by equation [tex]C_1[/tex] and [tex]C_2[/tex] from equation (i) and (ii), we have

[tex]C_1=C_2[/tex]

[tex]\Rightarrow 45+0.24x=65+0.23x[/tex]

[tex]\Rightarrow 0.24x - 0.23x=65-45[/tex]

[tex]\Rightarrow 0.01 x = 20[/tex]

[tex]\Rightarrow x = 20/0.01[/tex]

[tex]\Rightarrow x= 2000[/tex]

Hence, there must be 2000 text message to be sent during the month in order to have the same cost from both the companies.

5|7 - 9| - 2
aaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answers

Answer: 8

Step-by-step explanation:

1. 5 * |7-9| - 2

2. 5 * 2 - 2

3. 10 - 2

4. 8

The distance from City A to City B is 75,300 metres. The distance from City B to City C is 51,800 metres. Ross drives from City A to City C through City B. He drives for 62,400 metres before taking a rest. What is the remaining distance that Ross has to drive to reach City C ?

what is the answer for this question it's really urgent

Answers

To find out AC you would do 75,300 + 51,800 which is 127,100 so AC is 127,100
Ross drove 62,400 already so you would do 127,100 - 62,400 which is 64,700 so Ross has 64,700 meters left.
GIVE BRANLIEST PLEASE :)

Eight teams of high school students helped clean up trash in the community. Afterwards, they shared 47 pizzas equally. How many pizzas did each team get?

Answers

Answer:

We know that 8 teams of students shared 47 pizzas.

The only thing we can assume is that the 47 pizzas where divided evenly between the teams, so the number of pizzas that each team gets is equal to the quotient between 47 and 8, or:

47/8 = 5.875

But this is not a whole number, and this happens because 47 is not a multiple of 8.

Then we can do:

47 = 40 + 7

And 40 is a multiple of 8.

40/8 = 5

Then each team got 5 whole pizzas, and there are 7 pizzas left.

Now, we can assume that each pizza has 8 slices.

Then there are left 7*8 = 56 slices.

And when we divide those by the number of teams, we have:

56 /8 = 7

So each team gets 7 slices from the remainder pizzas.

Then we can conclude that each team gets 5 whole pizzas and 7 slices.

paul and jenn are building a new patio they are looking at home improvement stores for square tiles

Answers

Whats the full question and options? Comment and ill answer it! :)

what is the lcm of the numbers 96 and 72

Answers

Answer:

288: least common multiple

Step-by-step explanation:

Answer:

The LCM of 96 and 72 is 1,656

Step-by-step explanation:

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5x^2-22x+8=0 can you find the roots?​

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5x^2-22x+8=0
can you find the roots?