Answer:
(x+2)(2x-1)
Step-by-step explanation:
I used a little guess and check for this so bear with me :P
The final answer would always have to be two brackets with x and the relevant variables.
2x²: You know the possible factors that can be multiplied together would be 2x and x. Each factor would have to be in different brackets, so we get (x + smth else)(2x +smth else)
When factorising quadratic expressions, you need to find the correct pair of factors, that when multiplied together, becomes (-2). They also need to become 3x when they are multiplied with the term in the bracket (either x or 2x) and then added together.
Possible factors:
1. 1 × (-2) = (-2)
2. -1 × 2 = (-2)
Assume (x+1)(2x-2) = 2x² -2x +2x -2
= 2x² +0 - 2 (Wrong)
Assume (x-2)(2x+1) = 2x² +x -4x -2
= 2x² -3x -2 (Wrong)
Assume (x-1)(2x+2) = 2x² +2x -2x -2
= 2x² +0 - 2 (Wrong)
Assume (x+2)(2x-1) = 2x² -x +4x -2
= 2x² +3x -2 (Correct!)
Thus, (x+2)(2x-1) is the answer.
QUESTION:
Factorise 2x^2+3x-2
ANSWER:
[tex]\green{{(x + 2) × (2x - 1)}}[/tex]
STEP-BY-STEP EXPLANATION:
Write [tex]{3x}[/tex] as a diffrence
2x² + [tex]\red{{3x}}[/tex] - 2
2x² + [tex]\red{{4x - x}}[/tex] - 2
Factor out [tex]{2x}[/tex] from the expression
[tex]\red{{2x² + 4x}}[/tex] - x - 2
[tex]\red{{2x×(x + 2)}}[/tex] - x - 2
Factor out the negative sign from the expression
2x² + 4x - [tex]\red{{x - 2}}[/tex]
2x × (x + 2) - [tex]\red{{(x + 4)}}[/tex]
Factor out [tex]{x + 2}[/tex] from the expression
[tex]\red{{2x× (x + 2) - (x + 2}}[/tex]
[tex]\green{\boxed{(x + 2) × (2x - 1)}}[/tex]
hope it's helps
9. Which list shows these numbers in order from least to greatest?
Answer:
It the first one
Step-by-step explanation:
1/3 gallons of apple juice for $2.44 how much per gallon
The cost of 1 gallon of apple juice is, $7.32.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
The cost of 1/3 gallons of apple juice for $2.44.
Hence, The cost of 1 gallon of apple juice is,
⇒ $2.44 × 3
⇒ $7.32
Thus, The cost of 1 gallon of apple juice is, $7.32.
Learn more about the multiplication visit:
https://brainly.com/question/10873737
#SPJ1
The width of a rectangle is 3 units less than the length. The area of the rectangle is 54 units. What is the length, in units, of the rectangle?
Name two segments the represent radii.be sure to write the word segment and then use two letters to identify the radii
Answer:
k
Step-by-step explanation:
Given cos(O) =1/3
Find cos(2O)
Answer:
[tex]\displaystyle \cos 2\theta=-\frac{7}{9}[/tex]
Step-by-step explanation:
Cosine Double Angle
Given the cosine of an angle θ, the cosine of 2θ is given by the formula:
[tex]\cos 2\theta=2\cos^2\theta-1[/tex]
Given
[tex]\displaystyle \cos \theta=\frac{1}{3}[/tex]
Calculate
[tex]\displaystyle \cos 2\theta=2\left(\frac{1}{3}\right)^2-1[/tex]
[tex]\displaystyle \cos 2\theta=2\left(\frac{1}{9}\right)-1[/tex]
[tex]\displaystyle \cos 2\theta=\frac{2}{9}-1=-\frac{7}{9}[/tex]
[tex]\mathbf{\displaystyle \cos 2\theta=-\frac{7}{9}}[/tex]
What is 4.6 divided 33.58 plz hurry has to be done by 11:30
[tex]\\ \sf\longmapsto \dfrac{4.6}{33.58}[/tex]
[tex]\\ \sf\longmapsto \dfrac{46}{10}\div\dfrac{3358}{100}[/tex]
[tex]\\ \sf\longmapsto \dfrac{46}{10}\times \dfrac{100}{3358}[/tex]
[tex]\\ \sf\longmapsto \dfrac{460}{3358}[/tex]
[tex]\\ \sf\longmapsto 0.136[/tex]
suppose that a given country of 72 million people about 3,600 die from drowning each year what is the percent chance that a person will drown in a given year
Simplify the Expression (show work)
1. 2(5x + x)
2. -7+ 3x + 9x
Answer:
1. 12x
2. -7 + 12x
Step-by-step explanation:
1. 2(5x + x)
(multiply inside od parenthesis by outside)
10x + 2x
(add like terms)
12x
2. -7 + 3x + 9x
(add like terms)
-7 + 12x
Answer:
1. 12x
2. 12x-7
Step-by-step explanation:
1. distribute the 2 to both terms to get 10x+2x then add those together to get 12x OR add 5x to x to get 6x then distribute the (multiply by) 2 to get 12x
2. combine 3x and 9x to get 12x then write -7 to get 12x-7
A binder of baseball cards hold 625
cards. Each page in the binder holds 9 cards. How
many pages in the binder can be COMPLETELY filled?
Given:
Total number of cards in the binder = 625
Each page in the binder holds 9 cards.
To find:
The number of pages in the binder that can be COMPLETELY filled.
Solution:
We know that,
[tex]\text{Number of pages filled}=\dfrac{\text{Total cards}}{\text{Cards in each page}}[/tex]
Putting the given values, we get
[tex]\text{Number of pages filled}=\dfrac{625}{9}[/tex]
[tex]\text{Number of pages filled}=69.44...[/tex]
Approximate the value to the preceding whole number to get the number of pages in the binder that can be COMPLETELY filled.
[tex]\text{Number of pages filled}=69[/tex]
Therefore, 69 pages of binder are completely filled.
Fran bought some art supplies from an online retailer. The retailer charges a $5.95 shipping fee or 6% of the total purchase price, whichever is
greater. If Fran's total purchase is $124.50, how much shipping will she pay?
Answer:
Step-by-step explanation:
if 124.50 represents 100%
how much x represents 6% ?
cross multiply
x= 124.50*6/100= 7.47
$7.47 > $5.95 so it will pay $7.47 in shiping
Answer:
The answer is 7.47
Step-by-step explanation: Hope this helped
Emily isbuilding a model of her dog house. The height of the actual dog house is 4 feet.
Answer:
Step-by-step explanation:
what is the question?
Answer:
What is the question?
A bank is going to hire 5 new employees. There are 12 applicants. Which ratio
represents the number of applicants to new employees?
O 5/17
O5/12
O 12/17
O 12/5
Answer:
5/12 would be the answer
whats 1256 rounded to the nearest hundereth
Answer:
1300
Step-by-step explanation:
1256, if something is more than 5 then it goes up but if it's 4 or lower it goes down so 1256 rounded up to the nearest hundredth is 1300. Also because 1256 is closer to 1300 than it is to 1200.
Answer:
1300
Step-by-step explanation:
1256 when rounding to the nearest hundredth, you look at the number behind it, 4 or less round down; 5 or more round up. Since in the tenth place there's a 5 you round up to 1300.
75(1+0.2/12)^10*12 what is the answer
Answer:
545.119
Step-by-step explanation:
75 * (1 + .2/12)^10 * 12
75 * (1.016667)^10*12
Now things get a little tricky. What does 10*12 mean? I'm taking it to mean 120
75 * (1.016667)^120
75 * 7.268
545.119
Answer:
1061.76487909 is the answer, and sorry i'm 4 days late with the answer.
Have a great day/night, and stay safe!
PLS HELP! BAD AT MATH!
Answer:
umm you may need to try Photo Math
Can any expert or above let me know if these are correct please I’m serious!
Answer:
I'm 99% sure that they are all correct.
Happy holiday seasons!
Stay safe and healthy!
May I please have brainliest?
1 If x= 14, which equation is true?
A3(20 - x) = 44
B 3(12-x) = 6
C 2(x-3) = 22
D 2x - 3= 22
Cells make proteins on small structures called vesicles
TRUE OR FALSE
Answer:
True
Step-by-step explanation:
Cells must make proteins to make vesicles move and operate.
A barrel holds 60 gallons of liquid. The barrel is leaking at a steady rate of 1/8 of gallon per hour. After how many days will the barrel be half filled?
A. 10 days
B. 5 days
C. 24 days
D. 48 days
Answer:
the answer is C
Answer: A, 10 days
Step-by-step explanation:
1/8 x 24 (because there are 24 hours in a day) = 3
Half of 60 = 30
30 ÷ 3 = 10.
It will take 10 days for the barrel to be half filled. So A's your answer.
Hope this helps!
please helpppp....????
Answer:
x = 45
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set up Equation
x + (x + 65) + 25 = 180
Step 2: Solve for x
Combine like terms: 2x + 90 = 180Isolate x term: 2x = 90Isolate x: x = 45How do you write 70% as a decimal?
Hey,
0,70
[tex]\%70 = \frac{70}{100} = 0.70[/tex]
Solve for x: 3+2 (8x – 1)= 5+4 (4.0 – 6)
Answer:
Ok but what do u want me to find out the answer or something specific
Step-by-step explanation:
A lemonade receipe calls for 1/4 cup of lemon juice for 1 cup of water
Answer:?
Step-by-step explanation: SO?
ca you answer my screenshot
Answer:
[tex] = 2\frac{2}{15} [/tex]
Step-by-step explanation:
[tex] 3\frac{1}{3} - 1\frac{1}{5} [/tex]
Convert both fractions to improper fractions
[tex] = \frac{10}{3} - \frac{6}{5} [/tex]
To subtract, find a common denominator of 3 and 5.
[tex] = \frac{50 - 18}{15} [/tex]
[tex] = \frac{32}{15} [/tex]
[tex] = 2\frac{2}{15} [/tex]
URGENT PLEASE HELP!!
ubj-tuju-qkq will u join in meet?
Bess has 19 sunflowers that she is putting into vases. She will put 4 su each vase. How many vases will have 4 flowers? ne Back! ind the number of equal groups and the number left over for 38 = 3. Show your work.
A rectangular computer screen has an area of A square inches. The width of the computer
screen is 7 inches. Which equation represents x, the length of the computer screen in inches?
Answer:
A = 7(x) or X = A/7
Answer:
D) x = A/7
or
J) x = A/7
I really need help ASAP
On a scale drawing with a scale of 1 to 25 feet, the height of the building is 8 inches on a drawing. How tall is the actual building?
Answer:
200 feet
Step-by-step explanation:
Answer:
200 feet
Step-by-step explanation:
you multiply 8 and 25
Bobby has two jobs. He makes $10 an hour as a tutor and $6 an hour as a
waiter. Bobby's mother will not let him work more than 20 hours per week. Bobby needs to
make at least $30 each week to pay for his cell phone and music downloads
Answer:
bobby makes enough to pay his phone bill if that's what it asking
Step-by-step explanation:
10*20
