Answers
Answer:
x = 3, x = 1
Step-by-step explanation:
Okay, let's set the equation = 0:
3x^2 -12x + 9 = 0
Then, we factorise. To do this, we have to find 2 numbers which have a product of 9 and add up to -12. There are a few ways to do this, but a simple try and error is the easier when using numbers which don't have many factors. So here we know that to get a product of 9, there are only 2 options: 9*1 and 3*3. Now we have to figure out which of these add up to -12. But to do this, we have to take into account the 3, from the x^2 coefficient. This allows to know that the numbers will be 9*1. Then we just need to change the signs to make it work. This would give: -9*-1 (with 3*-1).
The fully factorised equation would be (3x-9)(x-1). Following this, you can always expand it quickly, to check that it really works correctly.
Now let's solve. (3x-9)(x-1) = 0
We say that when two numbers multiplied by each other equal to zero, one of them has to be zero. So if (3x - 9) was equal to 0:
3x - 9 = 0
3x = 9
x = 9/3
x = 3/1
x = 3
Now for the other:
x - 1 = 0
x = 1
Related Questions
A water park sold 528 child tickets and 297 adult tickets. What percentage of the tickets sold were child tickets?
Answers
Answer:
64%
Step-by-step explanation:
Question 16 of 40
Which equation shows x2 + 6x - 6 = 0 rewritten by completing the square?
A. (x+3)2 = 15
B. (x + 3)2 = 9
C. (x+3)2 = 6
O D. (X+3)2 = 54
SUBMIT
Answers
Answer: a (x+3)^2=15
how is multiplying two decimals different from multiplying a whole number and a decimal
Answers
Answer:
So multiplying decimal and whole number means it will always equal as a decimal. But multiplying decimal with decimal means could equal whole or decimal number
Step-by-step explanation:
Answer:
Essentially, they are same thing
Step-by-step explanation:
For example, 3 x 0.4 = 1.2
0.3 x 0.4 = 0.12
The only thing that changes are the amount of numbers behind the decimal. So when multiplying decimals, you just multiply like normal (3 x 4 = 12), then you count the amount of decimal spaces (two) and you take the number (12) and move the decimal place to the left twice. 12.0 would go to 1.2 if multiplying by a tenth.
Given the two half-reactions, what must be done in the next step before the reaction can be balanced? First: upper A u superscript 3 plus right arrow upper A u. Second: upper I superscript minus right arrow Upper I subscript 2. Show the number of electrons being lost or gained. Make sure that the charges are balanced. List the atoms that need to be balanced.
Answers
In the first reaction, Gold (Au) gets 3 electrons and became Gold. In the second reaction, Iodine (I) loses 2 electrons and became Iodine.
What are cations and anions?When the atom loses the election then it is called a cation and when it gains the electron is called an anion.
Two reactions are given.
First reaction;
Au³⁺ + 3e⁻ ⇒ Au
In the first reaction, Gold (Au) gets 3 electrons and became Gold.
Second reaction;
2I⁻ ⇒ I₂ + 2e⁻
In the second reaction, Iodine (I) loses 2 electrons and became Iodine.
More about the cation and the anion link is given below.
https://brainly.com/question/1659592
Answer:
Answer is A
Step-by-step explanation:
Show the number of electrons being lost or gained.
write the ratio of the first measurement to the second measurement. compare in millimeters. diameter of ball A: 48mm diameter of ball B: 6.8cm
Answers
Answer:
A is the Answer
Step-by-step explanation:
A is the correct answer
what's 5 divided by 3 1/3?
Answers
Answer: It's 1.5
Step-by-step explanation:
Answer:
1.5, or 1.666667
Step-by-step explanation:
Good luck!
Each graph below shows a relationship between x andy .
For each graph, determine whether x and y are proportional.
If x and y are proportional, fill in the blank with a number.
Answers
Answer:
graph 1 but im not sure check with someone else.
Step-by-step explanation:
if you divide 10 divided by 2 it gives you 5 and then subtract it by 2.2 = 2.8
there goes your answer.
Answer Each graph below shows a relationship between x and y. For each graph, determine whether x and y are proportional. If x and y are proportional, fill in the blank with a number in simplest form:
Step-by-step explanation:
Someone pls help????????????????????????
Answers
Answer:
226 with r=295
Step-by-step explanation:
when you use long division, you get a final answer equaling 226, however, your left with a r/remainder of 295.
hope that helps
if it does, please give me brainliest.
thanks so much!
Identify the type of the pairs of angles.
∠3 and ∠5
∠1 and ∠8
∠2 and ∠6
∠1 and ∠4
∠4 and ∠5
Answers
1 and 8: alternate exterior
2 and 6: corresponding
1 and 4: vertical
4 and 5: alternate interior
find x please image below
Answers
Answer:
x=54°
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PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!
Answers
Answer:
C
Step-by-step explanation:
the measure of an inscribed angle is half the measure of its intercepted arc, so
arc DE = 2 × ∠ DFE = 2 × 18° = 36°
DF is a diameter of the circle , then
arc DEF = 180° , then
arc EF = 180° - 36° = 144°
Now
mEF and m DE lies in one line hence supplementary
mEF:-
180-36144°Why is 0.9 x 0.9 > 0.9?
Answers
0.9*0.9=0.81
0.81
If 2 + x/8 = 2 then what is the value of 9x - 3?
Answers
Answer:
-3
Step-by-step explanation:
assuming that the x is the same in both problems, to get 2 as your solution, in the first problem x÷8 would have to equal 0. so x would have to be 0. sense 0 + 2 equals 2.
Then plug 0 into x in the first equation to check your work, and if it equals the answer givin to you (2), plug 0 into the equation you are trying to solve.
so 9×0 is 0, then 0 - 3 would give you -3
thanks for coming to my ted talk, lmk if it helped!! :)
Answer:
123
Step-by-step explanation:
(2+x)/8 = 2
Multiply both sides by 8 to eliminate the fraction
2+x =16
x=14
9x14 = 126
126-3 = 123
Question is in the image i uploaded!!
Answers
Answer:
4 pack
Step-by-step explanation:
£2.04 ÷ 4 is 51p. If we divide £2.04 by 4 (we are dividing it by 4 because that is the amount of rolls) it gives us how much 1 roll is in that pack. 1 roll = 51p in the 4 pack.
£4.68 ÷ 9 is 52p. If we divide £4.68 by 9 (we are dividing it by 9 because that is the amount of rolls) it gives how much 1 roll is in that pack. 1 roll = 52p.
Therefore, the 4 pack is cheaper as 1 roll costs less. The 4 pack is better value.
Solve. 805 ÷ 23
A. 35
B. 36 4/23
C. 39
D. 39 8/23
Answers
Answer:
the answer is a 35 is your answer
Area of a right angled triangle whose sides containing the right angle are 12 dm and 5 dm is _
wrong answer will be reported.
no spam.
Answers
Answer:
60 cm
Step-by-step explanation: how I got your answer is by multiplying 5 times 12
Using a minimum of three points, create two linear functions. Prove the line created works exclusively with the three points by justifying how the x-value and y-value fit into the equation for the line.
Answers
The equation of the line passing through the point (-1, 1) and (0, 10) is y = 9x + 10
What is a linear function?A linear function is in the form:
y = mx + b
Where y, x are variables, m is the rate of change and b is the y intercept.
From the table, using the point (-1, 1) and (0, 10) ,hence:
[tex]y-1=\frac{10-1}{0-(-1)} (x-(-1))\\\\y=9x+10[/tex]
The equation of the line passing through the point (-1, 1) and (0, 10) is y = 9x + 10
Find out more on linear function at: https://brainly.com/question/15602982
Help it’s functions
Answers
Anyone know the answer?
Answers
Math isn't my strong suit I need some help.
What is the slope of the line shown in the graph? A) Undefined B) Zero C) Slope = 3 D) Slope = −3
Answers
The equation of the line is x = 3 therefore there is not slope for the equation
estimate the sum of 189.27, 15.8, and 11.2 by rounding each number to the nearest whole.
Answers
189.27 rounded is 189
15.8 rounded is 16
11.2 rounded is 11
would appreciate some help
Answers
An apple, potato, and onion all taste the same if you eat them with your nose plugged
Is this true?
Answers
No
Because they all are different in taste and smell
True!
Explanation: Apples, potatoes and onions will all taste the same if somehow you were to block your sense of smell (plug your nose).
What is the range of f(x) = ( 3/4)* - 4?
{yly>-4}
{yly> 3/4}
{yly<-4}
{yly< 3/4}
Answers
Answer:
the answer is {y | y> - 4}
Find the value of h of the triangle
Answers
Answer: 6.6
Step-by-step explanation:
Please say the answer
Answers
Answer:
angle 1 = 68 degree
angle 2 = 55 degree
angle 3 = 57 degree
angle 4 = 57 degree
angle x = 123 degree
I will mark brainliest! Please help
Answers
Answer:
2 seconds
Step-by-step explanation:
This means the height, and thus h(t), is equal to zero.
0=-16t^2 + 16t + 32
0= t^2 - t - 2 (divide both sides by -16)
0 = (t-2)(t+1) [factor]
t = -1, 2 [set each factor equal to zero]
But as time cannot negative, take t=2, giving us 2 seconds.
If the car spends 2.5 hours going 35 miles per hour on the trip, how long does it spend going 55 miles per hour?
Answers
2.5/35 = X/55
Now cross multiply:
137.5 = 35X
X = 3.928
What was the Enlightenment, and how did it change they way people viewed government? Write your answer in complete sentences.
Answers
Answer:
The Enlightenment was a seventeenth- and eighteenth-century intellectual movement that aimed to better society via fact-based reasoning and investigation. The Enlightenment introduced secular ideas to Europe, changing people's perceptions of problems like liberty, equality, and individual rights. Today, such ideas are the bedrock of the world's most powerful democracies.
Step-by-step explanation:
two ideas that emerged from the Enlightenment:
Intellectuals like Jean-Jacques Rousseau and John Locke introduced the idea that no monarch should have absolute authority. Both claimed that leaders' authority came from the people, not from God. And, according to Locke, if people disagreed with their leader, they had the right to have their government replaced with one that honored their rights.
Pre-Enlightenment Equality Powerful individuals known as the nobility had exclusive privileges to buy land, avoid taxes, and hold privileged jobs across Europe, while the lowest elements of society battled to make ends meet. The Enlightenment questioned this system, with intellectuals such as John Locke arguing that all men are created equal and that no one should be born with more power than another.
HELPPPP
F(x)=-x^2-3x+1
The quadratic function, f(x )or g(x) has the greater maximum value ??
Answers
Answer:
You can tell that the maximum value that attains is rough.
Rewriting in vertex form. This tells us that the maximum of is.
So has the greater maximum.
Step-by-step explanation: