Answer:
[tex]\dfrac{2x+4}{x(x+2)(x-4)} \equiv \dfrac{1}{2(x-4)}-\dfrac{1}{2x}[/tex]
Step-by-step explanation:
Partial FractionsWrite out the expression as an identity:
[tex]\begin{aligned}\dfrac{2x+4}{x(x+2)(x-4)} & \equiv \dfrac{A}{x}+\dfrac{B}{(x+2)}+\dfrac{C}{(x-4)}\\\\\implies \dfrac{x(2x+4)(x+2)(x-4)}{x(x+2)(x-4)} & \equiv \dfrac{Ax(x+2)(x-4)}{x}+\dfrac{Bx(x+2)(x-4)}{(x+2)}+\dfrac{Cx(x+2)(x-4)}{(x-4)}\\\\\implies 2x+4 & \equiv A(x+2)(x+4)+ Bx(x-4)+Cx(x+2)\end{aligned}[/tex]
Calculate the values of A, B and C using substitution:
[tex]\begin{aligned}2x+4 & = A(x+2)(x-4)+Bx(x-4)+Cx(x+2)\\\\x=4 \implies 12 & = A(0)+B(0)+C(24)\implies C=\dfrac{1}{2}\\\\x=-2 \implies 0 & = A(0)+B(12)+C(0) \implies B=0\\\\ x=0 \implies 4 & = A(-8)+B(0)+C(0) \implies A=-\dfrac{1}{2}\end{aligned}[/tex]
Replace A, B and C in the original identity:
[tex]\begin{aligned}\dfrac{2x+4}{x(x+2)(x-4)} & \equiv \dfrac{A}{x}+ \dfrac{B}{(x+2)}+\dfrac{C}{(x-4)}\\\\& \equiv -\dfrac{1}{2x}+\dfrac{1}{2(x-4)}\\\\\implies \dfrac{2x+4}{x(x+2)(x-4)}& \equiv \dfrac{1}{2(x-4)}-\dfrac{1}{2x}\end{aligned}[/tex]
What is the correct expanded from and value of 4^3
Answer:
4^3 = 4x4x4
Step-by-step explanation:
its just a shortened version of 4x4 3 times
find the value of z?
a discount of $8.40 on something that usaully costs $28.00.What percent discount was received
Answer: 30%
Step-by-step explanation:
percentage = (discount/total amount)
* 100= (8.40/28)*100=30%
Write the equation of the line in fully simplified slope-intercept form.
(A) Find the slope of the line that passes through the given points.
(B) Find the standard form of the equation of the line.
(C) Find the slope-intercept form of the equation of the line.
(-3,4) and (6,4)
(A) Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
OA. The slope is m =
(Type an integer or a simplified fraction.)
B. The slope is not defined.
[tex](\stackrel{x_1}{-3}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{4}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{4}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{(-3)}}} \implies \cfrac{0}{6 +3}\implies 0[/tex]
hmmm a line with a slope of 0 is a horizontal one, and it has no slope-intercept form.
Check the picture below.
HURRY HELP PLEASE THIS IS AN EMERGENCY
Answer:
18
Step-by-step explanation:
Well there is 6 there.... ad six and six more (2 layers more) for a total of 18
2r + 3s = 14
2( )+ 3s = 14
+3s = 14
3s=
S =
Answer:
4
Step-by-step explanation:
3s=14-2
3s=12
3s/3=12/3
s=4
An experiment consists of spinning the spinner shown. All outcomes are equally likely. Find P(>6). Express your answer as a fraction in simplest form. spinner of 8 numbers
Answer:
[tex]\boxed{\huge{\sf \dfrac{1}{4} }}[/tex]
Explanation:
Given Total Numbers: 8 numbers
Must be greater than 6, The numbers are 7 and 8 = 2 numbers
Probability:
→ favorable outcomes/total possible outcomes
→ 2/8
→ 1/4
→ 0.25
Evaluate the expression if a = 2, b = −3, c = −4, h = 6, y = 4, and z = −1.
|2b−3y||+5z
Answer:
-23
Step-by-step explanation:
simplify the expression
Answer:
[tex]\sf 10x-2[/tex]Step-by-step explanation:
[tex]\sf \left(2x+\cfrac{1}{2}\right)+\left(8x-2\cfrac{1}{2}\right)[/tex]
We'll need to convert the mixed number 2 1/2 to improper fraction.
[tex]\sf \left(2x+\cfrac{1}{2}\right)+\left(8x-\cfrac{5}{2}\right)[/tex]
Simplify...
[tex]\sf 2x+\cfrac{1}{2}+8x-\cfrac{5}{2}[/tex]
Add similar elements.
[tex]\sf 10x+\cfrac{1}{2}-\cfrac{5}{2}[/tex]
[tex]\sf 10x+\cfrac{-4}{2}[/tex]
Divide numbers..
[tex]\sf 10x-2[/tex]
_______________________
Two number cubes are rolled for two separate events:
Event A is the event that the sum of numbers on both cubes is less than 10.
Event B is the event that the sum of numbers on both cubes is a multiple of 3.
Find the conditional probability of B given that A occurs first.
Enter your answer as a simplified fraction.
Using it's concept, it is found that the conditional probability of B given that A occurs first is of [tex]p = \frac{3}{10}[/tex].
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
When two dice are rolled, we have these 36 outcomes:
(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)Of those, 30 involve a sum of less than 10, and of those 30, 9 involve a sum that is multiple of 3(either 3, 6 or 9), hence the probability is given by:
[tex]p = \frac{9}{30} = \frac{3}{10} = 0.3[/tex]
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An outlier is a data value that is numerically distant from most of the other data _______ in a dataset.
a) If any values in the data set are greater than the upper boundary, then those values are the upper outliers.
b) If any values in the data set are less than the lower boundary, then those values are lower outliers.
The complete question is attached with an answer.
What are Outliers?If a number in distribution is more than 1.5 times the length of the box away from either of the upper and lower quartile of the distribution, then that number is said to be an outlier.
The lower quartile is and the upper quartile of distribution is
Then lower boundary is given by [tex]=Q_1-1.5\times IQR[/tex]
The Upper boundary is given by [tex]=Q_3+1.5\times IQR[/tex]
If any number or value of the distribution is greater than [tex]=Q_3+1.5\times IQR[/tex] then that is called Upper Outlier.
Similarly, if any value or number of the distribution is less than [tex]=Q_1-1.5\times IQR[/tex] then that is called Lower Outlier.
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There are 30 students in a homeroom. How many different ways can they be chosen
to be elected President, Vice President, Treasurer, and Secretary?
You could vote on it? There are as many ways as you can think of. It’s not set in stone.
evaluate
8a-b
if a = 10 and b= 6
Answer:
74
Step-by-step explanation:
(8x10) - 6 =
80 - 6 = 74
Graph f(x) = √x + 2 over the domain - 2 ≤x≤7.
Answer:
The Graph is included Bellow...
Step-by-step explanation:
This function will start at (0,2) and proceed to the right (based on its family function of √x) and since it has been shifted up 2 from f(x) then we will move two units up.
The domain can be considered the range from right to left that the function is restricted in. In this case, it starts at -2 (Which the function doesn't reach) and will stop at 7.
So the Graph you are looking for will start at (0, 2) and proceed to the right until (7, 4.6) ish. I have included a table to help your graph it!
Please Like if this helps!
John is ordering a pizza. He wants to choose what he gets randomly. He can get either regular crust or thin crust. Then he can choose either white or red sauce. Last, he chooses either pepperoni, sausage, or ham as his topping. Create a tree diagram below
When solving a problem, a tree diagram depicts the order in which events must be completed.
What is the relevance of a tree diagram?Tree diagrams are very effective in probability because they clearly and simply record all likely scenarios.
The attached Tree Diagram has been used to depict the problem that John is trying to solve.
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whats -6 times 3 over 2
Answer:
-9
Step-by-step explanation:
-6×3/2
-6×3=-18
-18/2
-9
The dimensions of the base of Box 1 are x by 3x.
The base area of Box 1 is:
O 3x
O 3x²
O 3x³
O4x
Answer:
3x^2
Step-by-step explanation:
Area = (length) x (width)
Area = (1x)*(3x)
Area = 3x^2
como simplificar 20/36
Answer:
5/9
Step-by-step explanation:
20÷36
20/36
divide using 2
10/18
divide using 2
5/9
hey guys can you help me with this question love
Answer: -∞ < x < ∞
Step-by-step explanation:
The domain is all the x-values, or inputs, of a function. The range is the y-values, or outputs, of a function.
In this case, we are looking for the x-values of the function. Since the function will keep going "out forever" in both directions, the answer should be the fourth option;
- ∞ < x < ∞
The first step that we must take to solving this problem is to fully understand what the problem statement is asking from us and what is given us to solve the problem. Looking at the problem statement, we can see that they are asking us to determine what the domain of the function is in the graph that was provided. However, first of all, let us define what domain is.
Domain ⇒ Domain is what x-values can be used in the function that is graphed. For example, if a line just goes side to side all the way to negative and positive infinity, then the domain would be negative infinity to positive infinity as it includes all of the x-values in it's solutions.Looking back at our problem, we can see that this is similar to the example that was provided in the definition. We can see that the parabola reaches out to both positive and negative infinity in the x-direction but at a slope. Although we can only see it reach -2 and 6 we know that the parabola continues going on even after that.
Therefore, looking at the options that were provided option D, -∞ < x < ∞ would be the best fit as it showcases that x reaches from negative infinity to positive infinity.
PLEASE HELP I’LL MAKE YOU THE BRAINIEST!! What is the value of x in simplest radical form
what are the zeos of f(x)=(x-1)(x+6)
The zeroes of the given polynomial is 1 and -6.
What is Polynomials?A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
Here, given equation;
f(x) = (x - 1)(x + 6)
for finding the zeros of the equation we need to put.....f(x) = 0
0 = (x - 1)(x + 6)
x - 1 = 0 or x + 6 = 0
x = 1 or x = -6
Thus, The zeroes of the given polynomial is 1 and -6.
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The diagonals of a trapezoid are 15 cm and 13 cm. The height is 12 cm. Find the area of the trapezoid.
Answer:
168cmsqured
Step-by-step explanation:
as for me,15 acts as the lower part of the trapezium while 13 acts as the upper part of the trapezium .so since I know the measurements of the both sides I can easily calculate the area use using the formula indicated in the image.hope it helps
What is the range of the linear relation?
{(0.-6),
(2,-2),
(3.0)}
Please help me guys, I need some answers
A one is 12
B is 25
just multiply by 6
Step-by-step explanation:
Answer:
a) 24cm²
b)150cm²
c)600m²
d)864mm²
e)294m²
f)486cm²
g)384mm²
h)1014cm²
Step-by-step explanation:
Find the area of the face, it's a cube so just multiply it by the length you have
2x2=4
It has 6 faces so multiply this by 6
6x4=24
Which situation is not an example of a digital transaction?
OA. Juliana uses Bitcoin to buy computer software.
B. Jamelle tips a driver by using a rideshare app.
OC. Elsa mails a check to her utility company.
D. Mark scans the QR code on a menu to pay for lunch.
SUBMIT
Answer:
C
Step-by-step explanation:
mailing a check is the mechanical transport of a physical object representing a monetary amount for payment.
that act itself is not electronic.
at the end in today's times the final act to get the money from Elsa'a account into the account of the utility company will be most certainly electronic, but we don't know (it could still end up in the old fashioned way that somebody from the utility company goes with the check to their bank, cash that check in and then use that cash in some way). and Elsa would not be involved. for her the payment was manual, "mechanical", and not electronic.
Answer:
C
Step-by-step explanation:
It mentions Elsa mails a check. Although it is sent through mail, the means of payment is still a check, which is not a digital transaction.
The distance from one high point of a wave to the next wave’s high point is called _____. a. wavelength c. time b. frequency d. distance
Answer:
Wavelength
Step-by-step explanation:
That distance is the wave length.
Answer: a. wavelength
(8x^9y^54)^1/3
Simplify the equation
Answer:
2x^3 y^18
Step-by-step explanation:
The power of a power (properties of exponents) was used in this problem. Hope this helps! :)
Answer:
[tex]2x^3 y^{18}[/tex]
Step-by-step explanation:
[tex]~~~\left( 8 x^9 y^{54} \right)^{\tfrac 13}\\\\=\left(2^3 x^9 y^{54} \right)^{\tfrac 13} \\\\=\left( 2^3 \right)^{\tfrac 13}\left( x^9 \right)^{\tfrac 13}\left( y^{54} \right)^{\tfrac 13}\\\\=2^{\tfrac 33} \cdot x^{\tfrac 93} \cdot y^{\tfrac{54}3}\\\\=2x^3 y^{18}[/tex]
Bob's Gift Shop sold 250 cards for Mother's Day. One salesman, Alang, sold 4% of the cards sold for Mother's Day. How many cards did Alang sell?
Answer:
10 cards
Step-by-step explanation:
4% of 250 cards
(4/100) x 250 cards
10 cards ✔️
Which expression is equivalent to the given expression? Assume the denominator does not equal zero.
Answer:
A
Step-by-step explanation:
Answer:
[tex]2x^6y^2[/tex]
Step-by-step explanation:
Step 1: simplify integers in expression
[tex]\frac{12x^{9}y^{4}}{6x^{3}y^{2}} = \frac{2x^{9}y^{4}}{x^{3}y^{2}}[/tex]
Step 2: simplify x terms
[tex]\frac{2x^{9}y^{4}}{x^{3}y^{2}} = \frac{2x^{6}y^{4}}{y^{2}}[/tex]
Step 3: simplify y terms
[tex]\frac{2x^{6}y^{4}}{y^{2}} = 2x^6y^2[/tex]