Answer:
0=0, Infinite solutions
Step-by-step explanation:
For an answer to have an infinite solution, the two equations when you solve will equal 0=0. Here is a problem that has an infinite number of solutions. If you solve this your answer would be 0=0 this means the problem has an infinite number of solutions.
If this was helpful please give brainliest, have a great day!
x=2
x=10
Woulld really appriciate brainliest here is the steps below
1.1 Factoring x2-12x+20
The first term is, x2 its coefficient is 1 .
The middle term is, -12x its coefficient is -12 .
The last term, "the constant", is +20
Step-1 : Multiply the coefficient of the first term by the constant 1 • 20 = 20
Step-2 : Find two factors of 20 whose sum equals the coefficient of the middle term, which is -12 .
-20 + -1 = -21
-10 + -2 = -12 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -10 and -2
x2 - 10x - 2x - 20
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x-10)
Add up the last 2 terms, pulling out common factors :
2 • (x-10)
Step-5 : Add up the four terms of step 4 :
(x-2) • (x-10)
Which is the desired factorization
Equation at the end of step
1
:
(x - 2) • (x - 10) = 0
STEP
2
:
Theory - Roots of a product
2.1 A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation:
2.2 Solve : x-2 = 0
Add 2 to both sides of the equation :
x = 2
Solving a Single Variable Equation:
2.3 Solve : x-10 = 0
Add 10 to both sides of the equation :
x = 10
Supplement : Solving Quadratic Equation Directly
Solving x2-12x+20 = 0 directly
Earlier we factored this polynomial by splitting the middle term. let us now solve the equation by Completing The Square and by using the Quadratic Formula
Parabola, Finding the Vertex:
3.1 Find the Vertex of y = x2-12x+20
Parabolas have a highest or a lowest point called the Vertex . Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) . We know this even before plotting "y" because the coefficient of the first term, 1 , is positive (greater than zero).
Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.
Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.
For any parabola,Ax2+Bx+C,the x -coordinate of the vertex is given by -B/(2A) . In our case the x coordinate is 6.0000
Plugging into the parabola formula 6.0000 for x we can calculate the y -coordinate :
y = 1.0 * 6.00 * 6.00 - 12.0 * 6.00 + 20.0
or y = -16.000
Parabola, Graphing Vertex and X-Intercepts :
Root plot for : y = x2-12x+20
Axis of Symmetry (dashed) {x}={ 6.00}
Vertex at {x,y} = { 6.00,-16.00}
x -Intercepts (Roots) :
Root 1 at {x,y} = { 2.00, 0.00}
Root 2 at {x,y} = {10.00, 0.00}
Solve Quadratic Equation by Completing The Square
3.2 Solving x2-12x+20 = 0 by Completing The Square .
Subtract 20 from both side of the equation :
x2-12x = -20
Now the clever bit: Take the coefficient of x , which is 12 , divide by two, giving 6 , and finally square it giving 36
Add 36 to both sides of the equation :
On the right hand side we have :
-20 + 36 or, (-20/1)+(36/1)
The common denominator of the two fractions is 1 Adding (-20/1)+(36/1) gives 16/1
So adding to both sides we finally get :
x2-12x+36 = 16
Adding 36 has completed the left hand side into a perfect square :
x2-12x+36 =
(x-6) • (x-6) =
(x-6)2
Things which are equal to the same thing are also equal to one another. Since
x2-12x+36 = 16 and
x2-12x+36 = (x-6)2
then, according to the law of transitivity,
(x-6)2 = 16
We'll refer to this Equation as Eq. #3.2.1
The Square Root Principle says that When two things are equal, their square roots are equal.
Note that the square root of
(x-6)2 is
(x-6)2/2 =
(x-6)1 =
x-6
Now, applying the Square Root Principle to Eq. #3.2.1 we get:
x-6 = √ 16
Add 6 to both sides to obtain:
x = 6 + √ 16
Accordingly, B2 - 4AC =
144 - 80 =
64
Applying the quadratic formula :
12 ± √ 64
x = —————
2
Can √ 64 be simplified ?
Yes! The prime factorization of 64 is
2•2•2•2•2•2
To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).
√ 64 = √ 2•2•2•2•2•2 =2•2•2•√ 1 =
± 8 • √ 1 =
± 8
So now we are looking at:
x = ( 12 ± 8) / 2
Two real solutions:
x =(12+√64)/2=6+4= 10.000
or:
x =(12-√64)/2=6-4= 2.000
x=10
x=2
Hope this helps Would also appriciate brainliest
please you guys should help me answer this it's timed
Answer:
im pretty sure it is a. (2,-3)
DUE AT 11:59 PLEASE HELP Only if you are good at geometry.
Describe a Sequence of Transformations that would map Triangle SRT onto S'RT. *
Answer:
- reflection about the x-axis
- translation down 2 units
- translation right 3 units
Step-by-step explanation:
8. The graph shows the relationship between the United States dollar and
the euro, the currency of the European Union, in December 2011. Part A:
What is the constant of proportionality shown in the graph?*
Exchange Rate (December 6, 2011)
YA
(400, 300)
300
Number of euros
200
(250, 187.50)
100
(120, 90)
0
100 200 300 400
Number of US dollars
Your answer
Answer:
K - Constant of proportionality
Y/X = K
Step-by-step explanation:
Can’t see the graph but the first point can be calculated. If your first point is (100,78) that’s (x,y), your k = 78/100, $78 US dollars and 100 euros, thus the unit rate is 78/100 = 0.78/1 which means 0.78 dollars equals 1 euro.
Clarissa sells handmade bracelets for each. The graph below shows her profits after expenses.
What does the point represent?
Answer:
Someone for real deleted my answer just because they got mad that I said theres no graph, I'm dead IMAO XD
Step-by-step explanation:
Answer:
where's the graph?
Step-by-step explanation:
Chris rented truck for one day. There was a base fee of $16.99, and there was an additional charge of 93 cents for each mile
driven. Chris had to pay $227.17 when he returned the truck. For how many miles did he drive the truck?
Answer:
226 miles
Step-by-step explanation:
Sorry this question couldn't be answered sooner, but here is the answer now:
In order to solve this, we must first subtract the total Chris paid by the base fee:
227.17 - 16.99 = 210.18
Then, we divide this number by 0.93:
210.18 / 0.93 = 226
So, Chris drove the truck 226 miles
Hope this helps :)
What is the range of the function y=sq root x+5
Answer:
[0,inf)
Step-by-step explanation:
inf means infinity logo
What is the value of f(4)?
-1
О
2
4
your 6 1/4 year investment of 40,000 at 14%compounded quarterly is worth how much now
Answer:
Step-by-step explanation:
here it's on question 4
how do i add 3=5 jejekfewnfkwnwewkjfnw
Answer:
You can't it is a false statement.
Step-by-step explanation:
You probably made an error.
3 + 5 is 8 unless you wanted this 3 + 2 = 5
Which sentence that is included in the text best represents the moral (lesson/purpose) of the story, "Rosie Revere, Engineer?" (hint: it's a message that represents what we believe in STEAM Enrichment as well!)
A. "But time never lingers as long as it seems"
B. "She worked and she worked till the day was half gone"
C. "The only true failure can come if you quit"
D. "After that day [Rosie] kept her dreams to herself"
Answer:
c
the only true failure can come if u quit
37.2 is 10 times as much as what
Which number is greater than 1?
O A. 1.34
B. 158%
O c. 7
3
O D. 1.6 x 10-0
Answer:
A
Step-by-step explanat:
Answer:
7 is greater
Step-by-step explanation:
ggdghiowwjeh85epeetilsitslstjlssit
The newspaper, The constellation, printed in 1859, had width 20 in and length 35 in. What was the perimeter? What was the area?
Answer:
110 in.
Step-by-step explanation:
newspapers have four sides because it is a square
one side is parallel to the other side.
so
20 × 2 for the width
35 × 2 for the height
20 × 2 = 40
35 × 2 = 70
add together for the perimeter.
40 + 70 = 110 in.
you could also...
20 + 35 + 20 + 35 = 110 in.
Helpppp please . Find the missing angle
Answer:
x=30
Step-by-step explanation:
x+90+60=180
x=180-150
x=30
Answer:
d-30
Step-by-step explanation:
The explicit rule for a sequence and one of the specific terms is given. Find the position of the given
term.
f(n) = 1.25n+ 12.5; 25
25 is the BLANK th term
Answer:
10.2
Step-by-step explanation:
F(n) is basically a fancy substitute for y
25= 1.25n + 12.25
subtract 12.25 from both sides
12.75=1.25n
n=10.2
plug back in to double check
1.25(10.2) + 12.25
it equals 25, therefore the answer is
10.2
Write the equation of the line in slope-intercept form that is parallel to 2x + 5y = 35 and passing through the point (-10, 12 ).
Answer:
y=- 2/5x+7
Step-by-step explanation:
Is this a function? Please help me! I literally cant do this!
Answer:
Yes, this is a function.
Step-by-step explanation:
This is a function because every input goes to exactly one output. Although 1 is listed twice in this example, it still goes to the same output of 15.
What is the slope of a vertical line?
Answer:
Undefined
Step-by-step explanation:
Since all of the x inputs are 0, the slope will always have a 0 in the denominator, which means it is undefined.
whats 8/10 = ?/20
I REALLYYYYYYYYYY NEED HELP WITH THIS!!!!!!!!!!!!!!!!!!
Answer:
16
Step-by-step explanation:
Answer:
16/20
Step-by-step explanation:
8x2=16 and the remainder is 20 so that makes 16/20
Geometry question building block?
Answer:
postulate: D
theorem: A
definition: B
diagram: C
A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag? Explain your reasoning.
Answer:
114 red marbles, 6 black marbles.
Step-by-step explanation:
120/20=6
6*19=114
help me please I need a lot of help!!!!
Answer:
all of the above
Step-by-step explanation:
definition of rational number from Wikipedia:
In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.[1] Since q may be equal to 1, every integer is a rational number.
sequencing of rigid motions matters . true or false ?
Answer:
False.......................
Step-by-step explanation:
Please mark as brainlist answers
Anyone have an idea?
Answer:
yes I have an idea jnhvhbvcf
Answer: option C.) an 1.2 (n-1) -5 Sorry, no subscript for "a sub n"
Step-by-step explanation:
Substitute the values of n 1,2,3,4 and see if the output is the corresponding number in the sequence.
n = 1 2 3 4
-5 -3.8 -2.6 -1.4
an= 1.2 (n-1) -5 the n-1 needs to be a number multiplied by 1.2 produces a number added to -5 results in the number in the sequence.
a1=1.2(1-1) -5 a= 1.2(0) -5 a= -5
a2 1.2 (2-1) -5 a= 1.2(1) -5 a= -1.2 -5 a= -3.8
a3 1.2 (3-1) -5 a= 1.2(2) -5 a= -2.4 -5 a= -2.6
a4 1.2 (4-1) -5 a= 1.2(3) -5 a= -3.6 -5 a= -1.4
Pls help question is below.
Answer:
where is the question
Step-by-step explanation:
u do not have a question so there us nothing to answer
Diana wanted to make peanut brittle for a holiday party, so she bought a 16.5-ounce jar of peanuts at the grocery store. She used 3 5 of the peanuts to make peanut brittle. The next week, she split the remaining peanuts into 3 bags of trail mix for a hike with friends. How many ounces of peanuts did Diana put in each bag of trail mix?
Answer:
2.2 ounces.
Step-by-step explanation:
Quantity of peanuts Diana bought = 16.5 ounces
Quantity used for peanut brittle = 3/5
Hence:
3/5 × 16.5
= 9.9 ounces was used for peanut brittle.
The amount left =
16.5 ounces - 9.9 ounces
= 6.6 ounces.
We are told that: the next week, she split the remaining peanuts into 3 bags of trail mix for a hike with friends.
The ounces of peanuts she put in each bag of trail mix is calculated as:
6.6 ounces ÷ 3 bags
= 2.2 ounces.
Answer:
2.2
Step-by-step explanation:
A timber company in northern Georgia is harvesting pine trees to sell by the cord. A typical acre produces 13.85 cords of wood, and the company sells each cord for $19.20. How much money can the timber company expect to make from each acre of pine trees?
please help!!! i will give brainliest
Answer:
∠ABC and ∠q : corresponding angles∠p and ∠q : supplementary angles∠p and ∠BCD : alternate angles∠q and ∠n : supplementary angles∠n and ∠m : corresponding anglesStep-by-step explanation:
Corresponding angles form on the matching corners of a transversal when two parallel lines are crossed by a transversal. Example angles: ∠ABC and ∠q
and ∠n and ∠m .
Supplementary angles are those that form on a straight line and their measures add up to 180°. Example angles : ∠p and ∠q and ∠q and ∠n
Alternate angles form on the opposite position relative to the transversal that cuts the two lines. Example : ∠p and ∠BCD
Which of the following lists the order of operations in the correct order?
Rewrite the following polynomial in standard form.
9x +x^2- 1/10
Answer:
x^2+9x−1/10
hopefully this helps, it's just writing it backwards