[tex]\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{y}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{y-1}{6-4}=\stackrel{\textit{slope}}{-\cfrac{1}{4}}\implies \cfrac{y-1}{2}=-\cfrac{1}{4} \\\\\\ 4y-4=-2\implies 4y=2\implies y=\cfrac{2}{4}\implies y=\cfrac{1}{2}[/tex]
What is the simplified form of the following expression?
For this case we must simplify the following expression:[tex]7 (\sqrt [3] {2x}) - 3 (\sqrt [3] {16x}) - 3 (\sqrt [3] {8x})[/tex]
We rewrite:
[tex]16x = 2 ^ 3 * 2x\\8x = 2 ^ 3 * x[/tex]
We rewrite the expression:
[tex]7 (\sqrt [3] {2x}) - 3 (\sqrt [3] {2 ^ 3 * 2x}) - 3 (\sqrt [3] {2 ^ 3 * x}) =[/tex]
By definition of properties of powers and roots we have:
[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]
Then, taking the terms of the radical:
[tex]7 (\sqrt [3] {2x}) - 3 (2 \sqrt [3] {2x}) - 3 (2 \sqrt [3] {x}) =\\7 \sqrt [3] {2x} -6 \sqrt [3] {2x} -6 \sqrt [3] {x} =[/tex]
We add similar terms:
[tex]\sqrt [3] {2x} -6 \sqrt [3] {x}[/tex]
Answer:
Option C
What is the simplified form of 2160x8/60x2? Assume 36x3 36x2 6x3 6x2
*see image
For this case we must simplify the following expression:
[tex]\sqrt {\frac {2160x ^ 8} {60x ^ 2}}[/tex]
We rewrite the expression:
[tex]\sqrt {\frac {60 * 36 * x ^ 8} {60x ^ 2}} =[/tex]
We eliminate common terms:
[tex]\sqrt {\frac {36 * x ^ 8} {x ^ 2}} =[/tex]
For division of powers of the same base, the same base is placed and the exponents are subtracted:
[tex]\sqrt {36x ^ {8-2}} =\\\sqrt {36x ^ {6}} =[/tex]
By definition of properties of powers and roots we have:
[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]
So:
[tex]6x ^ {\frac {6} {2}} =\\6x ^ 3[/tex]
Answer:
Option C
Find degree "y" in the triangle. A. 37 B. 39 C. 51
Answer:
B
Step-by-step explanation:
Given the following statements, which is the best definition...
Answer:
Anything you own that has value and can be turned into cash.
Step-by-step explanation:
Unless there is a passage that refers to the word, the second option would be the best answer due to Google's online dictionary.
what is 50 times 50
i realy need help on this and plz help me on this
Hello There!
50*50 is 2,500
Answer:
1000
Step-by-step explanation:just multiply
If angle 2=3x +1 and angle 3=2x +4
what is angle 2
Answer:
∠2 = 52°
Step-by-step explanation:
Since 1 angle = 90° then the sum of the other 2 angles = 90°, that is
∠2 + ∠3 = 90 ← substitute values
3x + 1 + 2x + 4 = 90
5x + 5 = 90 ( subtract 5 from both sides )
5x = 85 ( divide both sides by 5 )
x = 17
Hence
∠2 = 3x + 1 = (3 × 17) + 1 = 51 + 1 = 52°
A path is traced from point A to point B by using the segments shown in the diagram. Paths are traced only upwards, to the right, or diagonally upwards. How many different paths can be traced from A to B?
Step-by-step answer:
If one is constrained to move to the right, or up, or diagonally upwards (i.e. remain in the first quadrant), then
there are three choices at A.
At the next position, whichever path one has taken, there are also three choices.
At the following position, there are no more choices.
Therefore, there are 3*3 = 9 different paths.
Find the missing term
The sum of -3x^2 or 3x^2 and 7x^2 is 10x^2
Answer:
3x²
Step-by-step explanation:
Note that when adding, as long as the variables have the same power, you can combine the numbers together.
The sum of 3x² + 7x² = 10x² is correct.
If you used -3x², then it will be wrong, because -3x² + 7x² = 4x².
~
Determine the equivalent system for the given system of equations:
5x − 3y = 6
x + y = 2
Answer:
x = 1.5 and y = 0.5 → (1.5, 0.5)Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}5x-3y=6\\x+y=2&\text{multiply both sides by 3}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}5x-3y=6\\3x+3y=6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad8x=12\qquad\text{divide both sides by 8}\\.\qquad x=1.5\\\\\text{put the value of x to the second equation:}\\\\1.5+y=2\qquad\text{subtract 1.5 from both sides}\\y=0.5[/tex]
Answer:
Your answer would be A.) 5x − 3y = 6 and 6x − 2y = 8
A bouncing you reaches a height of 64 inches at its first peak, 48 inches at its second peak, and 36 inches at its third peak. Which explicit function represents the geometric sequence of the heights of the toy?
Answer:
f(n) = 64(3/4)^(n-1).
Step-by-step explanation:
The common ratio is 48/64 = 36/48 = 3/4.
For a GS nth term = a1 r^(n-1) where r = the common ratio, a1 = the first term, and n = the number of peaks reached.
The axplicit function is 64(3/4)^(n-1).
Answer:
f(x) = 64(three-fourths) Superscript x minus 1
Step-by-step explanation:
A bouncing toy reaches a height of 64 inches at its first peak, 48 inches at its second peak, and 36 inches at its third peak. The explicit function is f(x) = 64(three-fourths) Superscript x minus 1
Which system of equations has a solution of approximately (-0.4,1.1)?
A. x+3y=3 and 2x-y=-2 B.x-3y=-3 And 2x+y=2
C. x-3y=-3 and 2x-y=-2
D. x+3y=3 and 2x+y=2
Answer:
Step-by-step explanation:
Solve each equation individually, using substitution or elimination.
A. x + 3y = 3
2x - y = -2
Substitute:
2(3-3y) - y = -2
6-6y-y = -2
6-7y = -2
y = 8/7
plug it back in to the first equation:
x + 24/7 = 3
x = -0.4285, approximately, and since this rounds to -0.4 and 8/7 approximately equals 1.1,
A is your answer.
The system of equations has a solution of approximately (-0.4,1.1) is x+3y=3 and 2x-y=-2.
What are simultaneous linear equations?Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
here,
To determine whether (-0.4, 1.1) is the solution of which equation,
So, put the solution in the equation of Option A,
x+3y = 3
-0.4 + 3(1.1) = 3
2.9 ≈ 3
And,
2x-y=-2
2(-0.4) - 1.1 = -2
-0.8 - 1.1 = -2
-1. 9 ≈ -2
Thus, the system of equations has a solution of approximately (-0.4,1.1) is x+3y=3 and 2x-y=-2.
Learn more about simultaneous equations here:
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[tex] {40a}^{2} + 20a - 30 = ( - 1)( {15a}^{3} + 30) [/tex]
[tex]\bf 40a^2+20a-30=(-1)(15a^3+30)\implies 40a^2+20a~~\begin{matrix} -30 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~=-15a^3~~\begin{matrix} -30 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} \\\\\\ 40a^2+20a=-15a^3\implies 15a^3+40a^2+20a=0\implies 5a(3a^2+8a+4)=0 \\\\\\ 5a(3a+2)(a+2)=0\implies a= \begin{cases} 0\\ -\frac{2}{3}\\ -2 \end{cases}[/tex]
Please answer this correctly
We can notice that 731.8 is the Greatest among all numbers because 731 is always greater than 730
Now consider the remaining numbers : 730.38 , 730.1 , 730.63
★ 730.1 can be written as 731.10
As the Number part of remaining numbers is same (730), we need to consider the decimal parts of the numbers in order tell which number is greatest among them
★ Decimal part of 730.38 is 38
★ Decimal part of 730.10 is 10
★ Decimal part of 730.63 is 63
As 63 > 38 > 10 :
We can say that : 730.63 > 730.38 > 730.10
So, Arrangement of given numbers from greatest to least is :
★ 731.8 > 730.63 > 730.38 > 730.10
What is the area of MNP?
40 m2
60 m2
68 m2
127.5 m2
Answer:
60 m2
Step-by-step explanation:
Since they are congruent SQ=MP, NM=RQ, RS=NP. The formula to find the area of a triangle is 1/2 bh. So you do 8 times 15 divided by 2. 8 times 15 is 120. 120 divided by 2 is 60 m2.
Answer:60m^2
Step-by-step explanation:
MNP is a triangle and area of a triangle = 1/2* base *height
From the figure height = 15 and base = ?
So we solve for the base using Pythagoras theorem
.: MP = square root of 17^2 - 15^2
MP = 8m =the base
Area of MNP = 1/2*8*15
Area = 60m^2
a. 2x + 3 + 2x + 5 = 16
Answer:
simplifies to 4x +8 = 16has solution x = 2Step-by-step explanation:
The equation is simplified by combining "like" terms. The terms "2x" and "2x" are "like" not just because they are identical, but because the only variable (x) is raised to the same power (1) in each term. We can use the distributive property to help combine those terms:
2x +2x = (x)(2+2) = 4x
Of course, the constants on the left can be simply added: 3 + 5 = 8.
Now, the simplified form of the equation is ...
4x + 8 = 16
__
To solve this, we note that all the numerical values are multiples of 4, the x-coefficient. Then we can divide all of them by 4 to give ...
x + 2 = 4
You know the value of x already at this point, since you're familiar with your addition facts. However, to complete the solution algebraically, we subtract 2 from both sides of the equation:
x = 2
_____
Comment on this solution
You will usually get instruction to "separate the variable terms from the constant terms," so the simplified equation would usually have 8 subtracted from both sides to give ...
4x = 8
Then, you would divide by the x-coefficient to get x=2.
I elected to do it the way shown above for a couple of reasons:
so you can see it is possible and gives the correct resultso the numbers remaining in the equation are smaller, making the math slightly easierWhich of the following is a like radical to.. (look at picture)
Answer:
Option 1
Step-by-step explanation:
Before answering the question, we should define what the like radicals are.
The radicals which have the same expression under the root and same root number. There can be numerical multiples outside the radical but we have to compare the root number and same expression under the root.
In the given question, only option one has the same root number to the radical given in the question and the same expression under the root ..
what is the solution to this system of equations? 3x+7y=31 and -3x-2y=-1?
Answer:
3x + 7y = 31
-3x - 2y = -1
____________________
5y = 30
y = 6
____________________
3x + 42 = 31
3x = -11
x = - 11/3
____________________
x = -11/3; y = 6
PLZ HELP
Determine whether the polynomial is a difference of squares and if it is, factor it.
y2 – 196
is a difference of squares: (y + 14)2
is a difference of squares: (y – 14)2
is a difference of squares: (y + 14)(y – 14)
is not a difference of squares
Answer:
(y + 14)(y - 14)
Step-by-step explanation:
A difference of squares has the general form
a³ - b² and factors as
(a + b)(a - b)
Given
y² - 196
y² = (y)² ⇒ a = y and 196 = 14² ⇒ b = 14
y² - 196
= y² - 14² = (y + 14)(y - 14) ← difference of squares
Suppose f(x)=x^2. What is the graph of g(x)=f(5x)?
Can some please help me
ANSWER
Option D.
EXPLANATION
The given function is
[tex]f(x) = {x}^{2} [/tex]
The new function is
[tex]g(x) = f(5x)[/tex]
This implies that,
[tex]g(x) = {(5x)}^{2} [/tex]
This gives us:
[tex]g(x) = {25x}^{2} [/tex]
We can that the graph of g(x) will shrink by a factor of 25 compared to f(x).
The graph will open upwards and shrink towards the y-axis.
Answer:
The answer is D
Step-by-step explanation:
* Lets revise some transformations
- A horizontal compression is the squeezing of the graph toward
the y-axis.
- If the graph is y = f(x) and its image is y = f(k•x)
∴ The graph is horizontally compressed if k > 1 that means divide
each of its x-coordinates by k.
∴ The graph is horizontally stretched if 0 < k < 1, that means divide
each of its x-coordinates by k.
* Now lets solve the problem
∵ f(x) = x²
∵ g(x) = f(5x)
- Substitute the value of x in f(x) by 5x
∴ f(5x) = (5x)²
∴ g(x) = (5x)²
∵ The image of f(x) = x² is g(x) = (5x)²
∴ k = 5
∵ 5 > 1
∴ The graph of f(x) is compressed horizontally
- divide each x-coordinates of the points on the graph by 5
∴ The graph becomes narrow to the y-axis
- Look to the attached graph for more understanding
# The red graph is f(x) = x²
# The blue graph is g(x) = (5x)²
* The answer is the last graph D
what is the definition of a term?
Answer:
Step-by-step explanation:
In math, a term is a combination of coefficients, constants and /or variables, each combination being separated by either a + sign or a - sign.
A term's definition provides an explanation of its meaning, often found in dictionaries but should also consider context and usage for a well-rounded understanding. Terms are often constructed from roots, prefixes, and suffixes that each convey a portion of the term's complete meaning. In textbooks, 'Key Terms' are important words paired with their definitions, as used in context.
Explanation:The definition of a term refers to the explicit and clear explanation of what a particular term or word represents or means. This explanation is often found in dictionaries, but for full comprehension, it's important to also consider context and usage. While a dictionary provides a basic description based on common usage of a term, sometimes this common usage might lack precision or accuracy. It becomes essential to reflect on the term's meaning within a larger understanding of the world.
Consider anatomical terms used in biology, their definitions are composed of roots, prefixes, and suffixes - each part offering a piece of the term's overall meaning. For example, 'hypertension' is made from hyper- which means high and -tension which means pressure. Together it represents abnormally high blood pressure.
Meanwhile, in the context of a school textbook, 'Key Terms' are words of importance that are highlighted (usually in bold) and then followed by a definition. This way, the term syntax is given in the context in which it is used in the text. This makes understanding easier and seamless.
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Consider the right triangle given below. The length of side b to two decimal
places is
Answer:
B
Step-by-step explanation:
We can use the law of sines to form a proportion.
The law of sines state that any side length divided by the sin of the opposite angle measure will be equal.
Let's form a proportion.
[tex]\frac{25}{sin(90)}=\frac{b}{sin(35)}[/tex]
Simplify.
b ≈ 14.34
The value of b from the diagram is 14
Right angles triangleFrom the given diagram we have the following
hypotenuse = 25
Opposite = bm<B = 35 degreesusing the SOH CAH TOA identity, hence;
sin 35 = b/25
b = 25sin35
b = 14.34
The value of b from the diagram is 14.34
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how many hours or minutes is the decimal 4.82
Answer:
Assuming your asking what is 4.82 hours to minutes, the answer to this is 289.2 minutes
Identify any extraneous soloution. See pic above
Answer:
x = 3
Step-by-step explanation:
Given
[tex]\sqrt{-x+4}[/tex] = x - 4 ( square both sides )
- x 4 = (x - 4)² ← expand
- x + 4 = x² - 8x + 16 ( subtract - x + 4 from both sides )
0 = x² - 7x + 12 ← in standard form
0 = (x - 3)(x - 4) ← in factored form
Equate each factor to zero and solve for x
x - 3 = 0 ⇒ x = 3
x - 4 = 0 ⇒ x = 4
As a check
Substitute these values into the equation and if both sides are equal then they are the solutions
x = 3 : [tex]\sqrt{-3+4}[/tex] = [tex]\sqrt{1}[/tex] = 1
right side = 3 - 4 = - 1
left side ≠ right side ⇒ extraneous solution
x = 4 : [tex]\sqrt{-4+4}[/tex] = 0 and right side = 4 - 4 = 0
left side = right side ⇒ x = 4 is the solution
Bella is interested in buying a $150,000 home. How big does her down
payment need to be in order to avoid PMI?
O
A. $20,000
O B. $30,000
O C. $25,000
O D. $120,000
SUBMIT
It’s B I think
Answer:
The answer is option B : $30,000.
Step-by-step explanation:
To avoid Primary Mortgage Insurance or PMI, one need to have the loan balance to be 80% or less of the home value.
Hence, Bella needs to deposit a down payment of at least 20% of $150,000
This value becomes:
[tex]0.20\times150000=30000[/tex] dollars
Therefore, the answer is option B : $30,000.
Answer:
B $30,000
Step-by-step explanation:
PMI then with the given amount is how we find the answer
Using the X Method to Factor
ax2 + bx + c
If x - 10 is a factor of x2 - 8x - 20, what is the other
factor?
X+
Answer:
If one factor is (x-10) then the other factor is (x+2).
Step-by-step explanation:
We need to factorize the term x^2-8x-20
For factorization we need to break the middle term.
Middle term : -8x
Product of first and last term: -20x^2
Factors: -10x, +2x
Solving:
x^2-8x-20
x^2-10x+2x-20
x(x-10)+2(x-10)
(x-10)(x+2)
So, if one factor is (x-10) then other factor is (x+2)
Which of the following will form the composite function?
Answer:
B
Step-by-step explanation:
In the composition of f and g, the equation is telling us to place the function f inside g. Observing in B that f is (x + 4), then this can be put in place of the x in 3x^2, making it 3(x + 4)^2 and finally the minus 5.
determine whether y varies directly with x. if so, find the constant of variation and write the equation.
For this case we have that if and it varies directly with x, we can write the equation as:
[tex]y = kx[/tex]
Where:
k: It is the constant of proportionality.
According to the table:
[tex]-3 = k (1)[/tex]
Clearing k:
[tex]k = -3[/tex]
Then,[tex]y = -3x[/tex]
Answer:
Option C
Answer:
y varies directly with x
[tex]k = -3[/tex]
The equation is:
[tex]y = -3x[/tex]
Step-by-step explanation:
We can say that and it varies directly with x if it is fulfilled that
[tex]y = kx[/tex]
Where k is a constant known as the constant of variation.
So
[tex]\frac{y}{x} = k[/tex]
This means that if y varies with x then the division of y between x should always be equal to a constant value k.
We must test this for the values shown in the table
[tex]\frac{-3}{1} = -3[/tex]
[tex]\frac{-9}{3} = -3[/tex]
[tex]\frac{-15}{5} = -3[/tex]
The quotient of [tex]\frac{y}{x}[/tex] is always equal to [tex]-3[/tex]. Then [tex]k = -3[/tex] and the variation of y with x is direct
The equation is:
[tex]y = -3x[/tex]
What does it mean to amortize a loan?
Answer:
usually means establishing a series of equal monthly payments that will provide
a principal payment that will cause the unpai principal balance to decrease each month so that the principal balance will be zero at the time of the final payment
Answer:
To amortize a loan refers to equal and periodic payments (monthly in most of the cases), on which the lender runs some interest ratio due to the amortization.
In other words, it means that the total amount of money the lender is going to "give" you is divide in smaller amount of moneys, which he is gonna lend you periodically, monthly. For example, if you need a $60,000 loan, and your lender propose to lend that money with a 4% of annual interest, that means he is gonna give your $1771.4 per month, he won't give you the whole money, instead he amortize the loan and give your a certain quantity based on the interest rate.
What is the y-intercept of the line described by the equation below?
y = 6x + 8
A. (0,8)
B. (0.-6)
C. (0,-8)
D. (0.6)
Answer:
A. (0, 8)Step-by-step explanation:
The slope-intercept form of an equation of a line:
y = mx + b
m - slope
b - y-intercept → (0, b)
We have the equation y = 6x + 8. Therefore
m = 6
b = 8
Answer: A: (0,8)
Step-by-step explanation:
The area of the regular octagon is approximately 54 cm?
What is the length of line segment AB, rounded to the
nearest tenth?
3.4 cm
4.8 cm
24 cm
27 cm
Answer:
A = 3.4 cm
Step-by-step explanation:
The length of line segment AB is 3.4cm.
The area of octagon is given as 2a^2(1+sqrt{2})
Where a is the side of octagaon. All sides of octagon are same.
As, 2a^2(1+sqrt{2}) = 54cm
Then, a^2 = 54/2(1+sqrt{2})
a^2 = 54/4.828
a^2 = 11.19
a = 3.4 cm