Select all solutions to the equation (2x — 4)(x + 5) = 0.


x = -1/2

x = 1/2

x = -2

x = 2

x = -5

x = 5



Answers

Answer 1

Answer:

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

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

2x^2+10x-4x-20=0

2x^2+6x-20=0

x^2+3x-10=0 ( Taking common of 2 )

x^2+(5-2)x-10=0 • (3=(5-2)x)

x^2+5x-2x-10=0

x(x+5)-2(x-5) =0 • Taking common

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

so x=-5 or x=2.

Answer 2

The solutions to the equation (2x — 4)(x + 5) = 0 will be negative 5 and 2. Then the correct options are D and E.

What is the solution to the equation?

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

The equation is given below.

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

The factors (2x - 4) and (x + 5) will be zero. Then we have

2x - 4 = 0

2x = 4

x = 4/2

x = 2

Then the other solution to the equation will be

x + 5 = 0

x = -5

The solutions to the equation (2x — 4)(x + 5) = 0 will be negative 5 and 2. Then the correct options are D and E.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ5


Related Questions

Find the smallest number which is when divided by 25,30and75 leavrs remainder.

Answers

Answer

you cant have a remainder bigger then your divident

Step-by-step explanation:

Answer:

The Lowest common multiple of 25, 30 and 75 is 150.

ken has 5 lemons and 3 oranges in his shopping trolley and the cost of the fruit is $3.50. Barbie, with 2 lemons and 4 oranges pays $2. 10 for her fruit. how much does each type of fruit cost?

Answers

Answer:

A) 5 L + 3 O = 3.50

B) 2 L + 4 O = 2.10

Multiplying B) by -2.5

B) -5L -10 O = -5.25 then a adding A)

A) 5L + 3 O = 3.50

-7 O = -1.75

Oranges = .25 each

Lemons = .55 each

Step-by-step explanation:

6.

For which discriminant is the graph possible?

A. b2 – 4ac = 7
B. b2 – 4ac = 0
C. b2 – 4ac = –12

Answers

Answer:

A. b2 – 4ac = 7

Step-by-step explanation:

What is (f - g)(x)? f(x) = 3x g(x) = -3x² + 3x Write your answer as a polynomial or a rational function in simplest form.​

Answers

Answer:

3x²

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= 3x - (- 3x² + 3x) ← distribute parenthesis by - 1

= 3x + 3x² - 3x ← collect like terms

= 3x²

order from least to greatest 4^2,√15 ,-5/2,-2 1/3,1/16

Answers

Answer:

-2 1/3, 1/16, √15, 4^2

Following order from least to greatest.

4 The equation 5W + 3 = 4w + 9 is modeled below. w W 1 W W 1 1 W 1 1 W W 1 1 1 What value of w makes this equation true? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value. MI - SI – PSA- S-​

Answers

Answer:

w = 6.

Step-by-step explanation:

5w + 3 = 4w + 9

5w - 4w = 9 - 3

w = 6

Then, check your work!

5(6) + 3 = 4(6) + 9

30 + 3 = 24 + 9

33 = 33

So, w = 6 will be the correct answer.

Hope this helps!

Compute each of the following values for f (x) = 1/x-2. Step by step
a. f(2.5)
b. f(1.75)
c. f (2)
d. Justify your answer for part (C).​

Answers

Step-by-step explanation:

subtitle values of x one by one:

a)f(2.5)=1/2.5-2

f(2.5)=1/0.5

f(2.5)=2

b)Now x=1.75

f(1.75)=1/1.75-2

f(1.75)=1/-0.25

f(1.75)=-4

c)x=2

f(2)=1/2-2

f(2)=1/0

f(2)=infinity

d)something divided by zero is equal to infinity that is exteremly large value

Help please and thank you (Algebra 1)

Answers

Hi ;-)

[tex](-7x^3+9x^2-3)\cdot(-2x^2-5x+6)=\\\\=14x^5+35x^4-46x^3-18x^4-45x^3+54x^2+6x^2+15x-18=\\\\=\boxed{14x^5+17x^4-91x^3+60x^2+15x-18}[/tex]

Solve the equation.
3(2x + 7) = - 23 + 14

Answers

Step-by-step explanation:

6x+21=-9

6x=-9-21

x=-30/6

x= -5

Answer:

[tex]3(2x + 7) = - 23 + 14 \\ 6x + 21 = - 9 \\ 6x = - 30 \\ x = \frac{ - 30}{6} \\ x = 5 \\ thnk \: you[/tex]

Anyone know the answer?

Answers

Answer:

Step-by-step explanation:

(21 + 3y) + y = 90

21 + 4y = 90

4y = 69

y = 17.25

x = 21 + 3(17.25)

x = 21 + 51.75

x = 72.75

Answer check:

72.75 + 17.25 = 90

90 = 90 Corrrrrrect !

Answer: x = 72.75 and y = 17.25

Explanation:

x = 3y + 21

And x + y = 90° (complementary angle)

Substitute x value in the equation:

3y + 21 + y = 90
4y + 21 = 90
4y = 69
y = 69/4
y = 17.25

x = 3(17.25) + 21
x = 51.75 + 21
x = 72.75

Twice a number is forty in equation form

Answers

Answer:

2x = 40

Step-by-step explanation:

Let the number be x

Twice means 2 time

2 × x

2x

The product is 40

2x = 40

Step-by-step explanation:

Twice a number is forty

Let the number be x, then

2×x=40

2x=40

x=40/2

x=20

Kim is making cookies. She is using a recipe that calls for 1/4 cup of lemon juice. She has a 6 fl oz. bottle of lemon juice. There are 8 fl oz. of lemon juice in 1 cup. How many batches of cookies can she make?

Answers

Answer:

3

Step-by-step explanation:

Answer:

Step-by-step explanation:

1 cup = 8 fl oz

x cup = 6 fl oz                         Cross multiply

6 oz * 1 cup = 8 oz x               divide by 8

x = 6 oz /8 oz = 3/4 cup

If kim needs 1/4 cup per batch then she will have enough for 3 batches of 1/4 cup each.

I dont get how to do this please help me
solve for the absolute value equation show your work

Answers

Step-by-step explanation:

5.

[tex] | \frac{x}{3} +{ \frac{2}{5} } | = 2[/tex]

[tex] \frac{x}{3} = \frac{6}{5} [/tex]

[tex]5x = 18[/tex]

[tex]x = \frac{18}{5} [/tex]

and

x/3=-12/5

x=-36/5

Mr. Mad Scientist earns $152, 200 per year. If he has to pay 15% in Income taxes per year how much money does he have after he pays his taxes for the year? *

Answers

Answer:

he have after he pays his taxes for a year 152185

cos5xcosx-sin5xsinx=??????????????????

Answers

Answer:

cos6x.

Step-by-step explanation:

We use the identity

cosAcosB - sinAsinB = cos(A+B)

so cos5xcosx - sin5xsinx = cos(5x + x)

= cos6x.

What is -0.56 as a fraction in simplest form?
-14/25
-5/6
-56/100
-7/10

Answers

The answer to it is A. -14/25.

How do I write 125,740,689 in expanded form and in words

Answers

Answer:

100,000,000 + 20,000,000 + 5,000,000 + 700,000 + 40,000 + 600 + 80 + 9

One hundred twenty five million, seven hundred forty thousand six hundred eighty nine

Step-by-step explanation:



MARKING BRAINLIEST !! using the distance formula falculate the perimeter of the triangle below
a. 27.9 units
b. 24.3 units
c. 25.7 units
d. 28.2 units ​

Answers

Answer:

a

Step-by-step explanation:

i didn't use the distance formula, instead i used the pythagrean theorum. i counted the units for the legs, and made three smaller triangle and solved them to find the lengths of the hypotenuse and the added the three of those together to find the perimiter of the original triangle

At a competition with 7 runners, medals are awarded for first, second, and
third places. Each of the 3 medals is different. How many ways are there to
award the medals?
Decide if this is a permutation or a combination, and find the number of ways
to award the medals.

Answers

Answer:

35 different combinations

Step-by-step explanation:

This would be a combination because the same person cannot get all three medals so permutation is not the correct way to calculate this. We use the formula C(n,r)=(nr)=n!(r!(n−r)!)=? where n is the number of total objects and r is the number of objects taken from the total.

brainliest pls . . . uwu

−5x+4y=3

x=2y−15



what would be the values of x and y

Answers

Answer:

x=9 y=12

Step-by-step explanation:

eqn 1 - x=2y-15

eqn 2- -5x+4y=3

-5(2y-15)+4y=3

-10y+75+4y-3=0

-6y+72=0

y= 12

x=2y-15

x=2(12)-15

x= 9

They gave that -5x+4y=3 and x=2y-15

Substitution,

-5(2y-15) + 4y=3
-10y + 75+ 4y=3
75-3 = 10y - 4y
6y = 72
y. = 72/6
Y= 12

Now find x

X= 2(12) - 15
X= 24 - 15
X= 9

Soo
X= 9; Y= 12

Use objects or shapes to describe a a right angle

Answers

Answer:

square because it has 4 90⁰ angles

Evaluate the expression for x = -3 and y = - 4.

2x+2y=__.

Answers

Answer:

-14

Step-by-step explanation:

Substitute the values for the variables.

[tex]2(-3)+2(-4)\\-6-8\\-14[/tex]

Answer:

-14

Step-by-step explanation:

cause you do 2(-3) + 2(-4) = -14

Find the value of x (trig)

Answers

According to the figure:-

P=13H=25

We know that Sin∅=P/H

Hence Sinx°=13/25

[tex] { \sin}^{ - 1} \frac{25}{13} = X°[/tex]

Be brainly

Help ASAP I’ll mark you as brainlister

Answers

Answer:

the range is from 6 to -4 (both inclusive)

Step-by-step explanation:

the domain is all values of x for which the function is defined and the range is all values of y for which the function is defined hence the domain is -3 to -11 and the range is 6 to -4

Use Distributive property to write the expression without parentheses

Answers

Answer:

-4x + 5y

Step-by-step explanation:

-1/6 x 24 x simplifies to -1 times 4x, which is -4x.  -1/6 times -30y simplifies to -1 times -5y, which is 5y.

Answer:

-4x + 5y

Explanation:

- 1/6(24x - 30y) =

-4x + 5y

Multiply - 1/6 by the numbers in parentheses

HELP

Write one equation that has solutions of x = -3 and x = 2.​

Answers

Answer:

x = -3

Equation: 2x + 2 = -4

x = 2

Equation: 3x - 3 = 3


[tex]\tt\huge\red{Please \: help \: me!}[/tex]

Answers

First find Divisor

Two zeros are -3,-2

[tex]\\ \sf\longmapsto x^2-(-3-2)+(-3)(-2)[/tex]

[tex]\\ \sf\longmapsto x^2+5x+6[/tex]

Dividend given by

[tex]\\ \sf\longmapsto x^4-x^3-16x^2+4x+48[/tex]

We know

[tex]\boxed{\sf Dividend=Divisor\times Quotient +Remainder}[/tex]

Remainder is 0

[tex]\\ \sf\longmapsto Dividend=Divisor\times Quotient[/tex]

[tex]\\ \sf\longmapsto Quotient=\dfrac{Dividend}{Divisor}[/tex]

[tex]\\ \sf\longmapsto \dfrac{x^4-x^3-16x^2+4x+48}{x^2+5x+6}[/tex]

[tex]\\ \sf\longmapsto x^2-6x+8[/tex]

Now factor

[tex]\\ \sf\longmapsto x^2-6x+8=0[/tex]

[tex]\\ \sf\longmapsto x^2-4x-2x+8=0[/tex]

[tex]\\ \sf\longmapsto x(x-4)-2(x-4)=0[/tex]

[tex]\\ \sf\longmapsto (x-4)(x-2)=0[/tex]

[tex]\\ \sf\longmapsto x-4=0\:or\:x-2=0[/tex]

[tex]\\ \sf\longmapsto x=4\:or\:x=2[/tex]

Hence all zeros are

2,-2,-3,4

Find the sum of 2√5 AND 4√3 in simplest form. Also, determine whether the result is rational or irrational and explain your answer.

Answers

Answer:

hey why you delete my answers

A studio charges a sitting fee of 25$ plus 7$ per each portrait sheet ordered. Write an expression that can be used to find the total cost to have photographs taken. Then the cost of purchasing twelve portrait sheets.

Answers

Hi

let's call X number of photo ordered.

So total Cost  is  C(x) = 7X+ 25

Il let you calculate for X = 12 . Have fun

Vie sold 45 raffle ticket. his brother sold twice as many. How many tickets did the sell together?

Answers

Answer:

135 tickets

Step-by-step explanation:

Vie's brother sold twice as many as Vie. So we multiply Vie's tickets by 2 to get the brother's.

VIe's brother sold 45 * 2 = 90 tickets

And all together the two sold

45 + 90 = 135 tickets

Other Questions
A train travels 803.98 meters in 1 minute what is the trains average rate of speed Which of the following is true of the id? It seeks immediate satisfaction of needs It is absent in newborns. It represents reason. Help!Please look at the pic and help me! Which statement describes an authoritarian government? Write in mathematical expression and simplify "5 tiems the sum of 12 and 8". Why did Otto von Bismarck believe a war with France would help unify Germany? This is for school. Is is presentable? please help me.Chapter 1 AlexBy: KiKiHe was walking all alone. Normally everybody just kicked me and said scam, but he just looked at me then said Hello there. That was the day my life changed forever. Hello my name is Hikari, I'm a little black and white cat and this is how my life changed forever. It all started that fateful day I was in the alley next to the two legs food place. Then all of a sudden I heard Here Kitty, Kitty I looked up and there he was, But like always I just ran to the back of the alley and hid behind a box. Then he came closer and put his hand out. I have no idea what was in his hand but it really smelled delicious. I sniffed his hand then slowly came closer. Then I quickly took a bite then ran away. I hopped on a box then leaped up the back gate that leaped to another alley on the other side. I didn't see him again until about a week later when he was walking on the sidewalk when I smelled that delicious stuff again. I followed it to his pocket and then he looked down at me and said There you are with a smile on his face. To be honest he looked tired like he had been up all night doing something, it was weird because he was the only two legs that looked like that. He tried to pet me but I quickly ran to the other side of the street then looked back at him. He looked so sad. So I did what no other animals would do. I ran back across the street and let him pet me. At first I was scared but then he picked me up and Immediately I felt safe, like I no longer had to worry about what I'm going to eat for the next week or sleep at night. I finally felt safe. He took me to his car then got in. I don't know what happened after that I guess I blacked out. I woke up in a small room. It was dark, but not too dark, I could still see. I got up from the floor and hopped up on a bed and saw him lying there. The blanket was on the floor for some weird reason. I hop down and grab the blanket by my mouth and try to pull the blanket on to the bed. It was really heavy but I could manage. I pulled it onto the bed then pulled it on him. I shoved my head up under his arm then layed down so that way he was holding me. I looked u at the moon then realized what was soon going to happen. Which statement is true?A. When a gas condenses to a liquid, it absorbs energy.B. When water boils, it releases energy.C. When ice melts, it absorbs energy.D. When water freezes, it absorbs energy. why did the speaker eyes feel like balls of burning lead in the poem 'fog' 47. Choose which of the underlined wordsare spelled correctly:A. I cannot go to they're game thisweekend because of my tournament.B. I cannot go to there game thisweekend because of my tournament.C. I cannot go to their game thisweekend because of my tournament. Difference between pointer and cursor The coordinates of point T are (0,3). The midpoint of ST is (7. - 3). Find the coordinates of point S..The other endpoint is(Type an ordered pair.) Put into your own words:"We hold these truths to be self-evident, thatal men are created equal, that they areendowed by their Creator with certainunalienable Rights, that among these are Life,liberty, and pursuit of Happiness." Which of these is a not a form of mass media What was the motivation of the players who were indicted for throwing the 1919 World Series game? Stuck on this problem for while please helpSelect the correct text in the passage.Which sentence in the passage uses parallel structure? How many units are considered a full time student at a community college in California? did i get i get it correct How do humans change and live within their environment? HELP THSI IS 100 POINTSA group of students is doing an experiment where they roll a ball down aramp and then measure how far across the floor it rolls. The factors that arethe same each time are: - the ball - the ramp, including its length and angleto the surface - where on the ramp the ball starts from The students dochange the type of surface the ball rolls on. What is the independentvariable in this experiment? *rampballdistancetype of surface the ball rolls on.What is the independent variable in this experiment