Mathematics High School

What are the solutions of (x - 3)(2x + 4) = 0

Answers

Answer 1

Step-by-step explanation:

(x - 3 ) (2x + 4) = 0

Either

x - 3 = 0

Therefore x = 3

Or.,

2x + 4 = 0

2x = - 4

x = - 4 /2

Therefore x = -2

Now the value of x is 3 or - 2.

Hope it will help :)♥

Answer 2

Answer:

x = 3   &  x = -2

Step-by-step explanation:

(x-3) = 0    so x = 3    

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

Related Questions

How would you solve this?

Answers

Answer:

For the equation, you should subtract 2x on both sides to get -y = -2x - 4.  Flip the y's negative sign to get a proper function which is y = 2x + 4.  The y-intercept is at (0, 4) and each unit will move two units up along the x-axis.

If you don’t mind have an explanation of the answer too :)


Write
68/50
as a percentage.

Answers

Answer:

136%

Step-by-step explanation:

Convert fraction (ratio) 68 / 50 Answer: 136%

Answer:

136%

Step-by-step explanation:

You just divide 68 by 50. Which will get you 1.2. The you multiply 100 by 1.36. So it becomes 136. Hope you understand :)

What is the distance between the points R(5, 7) and S(-2, 3)?​

Answers

Answer:

Step-by-step explanation:

D

The distance between points is √65.

What is distance?

The length of the line that connects two points is the distance between them. The distance can be determined by subtracting the coordinates that are not the same if the two points are on the same horizontal or vertical line.

The distance formula is used in analytic geometry to determine the distance between two lines, the sum of the lengths of all sides of a polygon, the perimeter of polygons on a coordinate plane, the area of polygons, and a variety of other measurements.

Given coordinates

R(5, 7) and S(-2, 3)

to find the distance between

the formula of distance for coordinates is

d = [tex]\sqrt{(y_{2} - y_{1} )^{2} + (x_{2} - x_{1} )^{2} }[/tex]

here y₂ = 3, y₁ = 7

x₂ = -2, x₁ = 5

substitute value in equation we get

d = [tex]\sqrt{({3 - 7 )^{2} + (-2 - 5 )^{2} }[/tex]

d = [tex]\sqrt{({-4 )^{2} + (-7 )^{2} }[/tex]

d = √(16 + 49)

d = √65

Hence the distance is √65.

Learn more about distance;

https://brainly.com/question/15172156

#SPJ2

find the value of x.

Answers

Answer:

Step-by-step explanation:

the ration of the 2 figures are 4/3 from the larger to the smaller one

this means that 4/3*6=8

x-1=8

x=9

choice c

What is the calculated interest for $650, with a 3% simple annual interest rate, after 4 years?

Answers

Answer:

650/100 X 3 = 19.5

19.50 X 4 = 78

$78

Ann used 5 2/3 gallons of gas on Sunday and 1 1/4 gallons of gas on Monday. How many more gallons of gas did she use on Sunday?

Write your answer as a mixed number in simplest form.

Answers

Answer:

116/8 - 87/8 = 29/8 = 3 5/8 gal

Step-by-step explanation:

How can you write a linear function in the form y=mx + b by using the two points given below (0,-2), (2,6)

Answers

Answer:

y = 4x - 2

Step-by-step explanation:

m = y-y/x-x

m = 6-(-2)/2-0

m = 8/2

m = 4

Answer:

y=4x-2

Step-by-step explanation:

help me fast for brainiest!

Answers


I hope this helpss!!!

4.) 960 meters in 15 seconds
Write the following rate as a unit rate

Answers

Answer:

64

Step-by-step explanation:

960 divided by 15 is 64. The unit rate means one so you are trying to get it to 1 second so just do 15 divided by 15 which is 1, then 960 divided by 15 which is 64

Jack wants to lose some weight and is highly motivated to follow the orders of his doctor. His doctor has given him a goal that he is to decrease his weight by 2 3/8 pounds per week. If Jack weighs 250 pounds
when he starts the diet, how much will he weigh after five weeks on the
diet?

Answers

Answer:

The answer would be 11 7/8 pounds

Step-by-step explanation:

2 3/8 times 5 equals 11 7/8.

Hope I helped!! :)

Sorry if it's wrong! :(

Pls mark brainlist.

What is the Prime Factorization

Answers

Answer:

for example the PF of 32 is 2*2*2*2*2 or 2^5

Step-by-step explanation:

Answer:

It means the decomposition of a composite number into a product of smaller integers. If these factors are further restricted to prime numbers, the process is called prime factorization.

-7/10 or -0.81 which is greater

Answers

Answer:

-0.81 one is greater

Step-by-step explanation:

-7/10 > -0.81 because the lower the number the closer it is to 0 and zero is greater than both values.

How many square centimeters of
wrapping paper will be used to wrap the
shoe box?
14 cm
4
10 cm
10
28 cm

Answers

Answer:

1624 cm^2.

Step-by-step explanation:

2 * 10*28 + 2*14*28 + 2*10*14

= 560 + 784 + 280

= 1624 cm^2.

The number of square centimeters of wrapping paper will be used to wrap the shoe box should be [tex]1624\ cm^2.[/tex]

Calculation of the number of square centimeters:

Since

The length, width, and the height is 14, 10 and 28

So here it should be

[tex]= 2 * 10*28 + 2*14*28 + 2*10*14[/tex]

= 560 + 784 + 280

= 1624 cm^2.

Hence, The number of square centimeters of wrapping paper will be used to wrap the shoe box should be [tex]1624\ cm^2.[/tex]

Learn more about number here: https://brainly.com/question/13388163

How many solutions will this system of equations have??
Please explain your thinking

Answers

7 because I’m smart and I have the expect same problem

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answers

your query :

A plumber charges $65 to make a house call plus an additional charge of $42 per hour for labor. Write an equation to represent the total cost (y) for any number of hours (x).

Answer:

the required equation to represent the total cost with respect to every hour will be

=》y = 42x + 65

Step-by-step explanation:

total cost (y) = charge to make a house call + additional charge for every our

so, total additional charge for x hours

= 42 × x = 42x

hence y = 65 + 42x ( where 65 is charge to make a house call , y is total cost and 42x is additional charge for x hours )

i hope u got it

have a great day ^_^

what is Use the table to solve the inequality 2x<2.

x −1 0 1 2 3
2x

Answers

Answer:

x less than 1

Step-by-step explanation:

Help me please I will give brainliest.

Karris ran eight eighteenths of a kilometer and cycled nine eighteenths kilometers in a race. How many kilometers was the race in all?


(A ) 1 kilometer


(B ) seventeen thirty sixths kilometer


(C ) one eighteenths kilometer


(D ) seventeen eighteenths kilometer

Answers

Answer:

D

Step-by-step explanation:

Race through running: 8/18th's

Race through cycling: 9/18th's

Total race covered is: 17/18th's

What is the solution set for the inequality below
-3x + 15 < 18

Answers

Answer:

x > -1

Step-by-step explanation:

-3x + 15 < 18

Subtract 15 from each side

-3x + 15-15 < 18-15

-3x < 3

Divide each side by -3, remembering to flip the inequality

-3x/-3 > 3/-3

x > -1

Help ill mark u brainliest

Answers

Answer:

m∠ONB = 81°

Step-by-step explanation:

If angle MNJ and angle ONB are congruent and MNJ is 81 degrees and OJ is a straight line then ONB should also be 81 degrees in which the other side is 99 degrees.

6 is 16% of what number?​

Answers

Answer:

37.5

Step-by-step explanation:

Answer:

6 is 16% of the number 37.5

Step-by-step explanation:

We have, 16% × x = 6

or, 16/100 × x = 6

Multiplying both sides by 100 and dividing both sides by 16,

we have x = 6 × 100/16

x = 37.5

I need helppppp with this please

Answers

i need help with that tooooo

What will be the rule?

Answers

Answer:

Step-by-step explanation:

I haven't done this in a long time so I don't know how you would write this but I will explain it.

For every 6 in puts you will get 1 out put.

also for the blank space on 42 is 7.

Hope this helps!!

simplify [tex]\sqrt[4]{6^4}[/tex]

Answers

Answer:

6

Step-by-step explanation:

We can rewrite the expression as

(6^4) ^ (1/4)

We know that a^ b^c = a^ ( b*c)

6^4 ^ (1/4)

6 ^ ( 4*1/4)

6

Answer:

6

Step-by-step explanation:

[tex] \sqrt[4]{ {6}^{4} } [/tex]

The 4 root and the 4 exponent cancel out as these two are inverse variables, then we are left with our answer

[tex]6[/tex]

Which of the following is true given that -4 > -9?
A.
-4 is to the left of -9 on a horizontal number line
B.
-4 is at the same place as -9 on a horizontal number line
C.
-4 is the opposite of -9 on a horizontal number line
D.
-4 is to the right of -9 on a horizontal number line

Answers

Answer:

d

Step-by-step explanation:

What is the answer???

Answers

Answer:

A. Translation, Translation

Step-by-step explanation:

The pre-image was translated 1 unit up then it was translated 4 unit to the right.

Hi please help. i’ve been stuck on this for 5 minutes

Answers

It’s 104. You have to add the sides and with that sum. You multiply by 4.

Can someone help me with this? I just need help understanding it.​

Answers

What do you need help with !?! I don’t get it you just write the question no picture

whats the area of 8ft, 6ft and 2ft?

Answers

Answer:

96

Step-by-step explanation:

8x6=48

48x2=96

Does anybody know what to do when there on punishment for trying to get some water late at night.


I cant wtach tv

Be on my computer/phone/tablet

i cant do anything fun or go to the store

i cant do alot of things

Answers

Answer:

go to bed

Step-by-step explanation:

Answer:

Dam ur parents r strict my dude...

Step-by-step explanation:

draw, make something, build things, walk... i mean there is a lot of things u can do, but it rlly depends on the person...

Write an algebraic expression or equation to represent each word phrase.
The quotient of n and 12 is 20

Answers

Answer:

n/12 = 20

Step-by-step explanation:

quotient is the answer of dividing

so

n/12 = 20

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