Show work pls What is the equation in slope-intercept form of the line that passes through the point (2, -2) and is perpendicular to the line represented by
y=2/5x +2 ?
Answers
Answer:
Step-by-step explanation:
the slope-International cept frome y= mx + b was where m is the slope and b y-intercept
y=mx +b
m= -2/5
b=2
slope is :2/5
y-intercept is :2
x. y
0. 2
1 8/5
Answer:
Step-by-step explanation:
perp. -5/2
y + 2 = -5/2(x - 2)
y + 2 = -5/2x + 5
y = -5/2x + 3
Related Questions
2-10x=-8x-8 helpppp pleaseeee
Answers
Answer:x=5
Step-by-step explanation:1 step subtract 2 from both sides 2 step:simplify 3 step: add 8x to both sides 4 step: simplify 5 step: divide both sides by -2 6step: simplify x=5
Algebra II Question One 4-2 HW
Answers
Answer:
mark crumbs inm om fro i.v om
A = 243
B = 1/10 or 0.1
First to answer gets something good ;)
Answers
Answer:
should be the second one 75 + 20x <55 +44x
WILL GIBE BRAINLIEST
Use FOIL to determine the following Expression
Answers
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
Guadalupe fue a la mercería a comprar 15.5 m de encaje blanco que necesita para la clase de costura. Si cada metro cuesta $5.60, ¿cuánto pagó por todo el encaje que necesita?
También pidió 4.75 m de cinta azul que le encargó su mamá. Si el metro cuesta $8.80 y su mamá le dio $40.00, ¿le alcanzará el dinero para comprarla?
¿Le falta o le sobra dinero? ¿Cuánto?
Answers
Answer:
a) Guadalupe pagó $ 86.8 por 15.5 metros de encaje blanco.
b) Guadalupe tendría que pagar $ 41.8 por 4.75 metros de cinta azul, entonces, no le alcanzaría el dinero para comprarle eso. Tendría un déficit de $ 1.8.
Step-by-step explanation:
a) Tras una lectura cuidadosa al enunciado, establecemos que el coste total pagado por Guadalupe es el producto de metraje comprado ([tex]n[/tex]), medido en metros, y el coste unitario ([tex]c[/tex]), medido en pesos por metro:
[tex]C = c\cdot n[/tex] (Eq. 1)
Si conocemos que [tex]c = 5.60\,\frac{\$}{m}[/tex] y [tex]n = 15.5\,m[/tex], entonces tenemos que:
[tex]C = \left(5.60\,\frac{\$}{m}\right)\cdot (15.5\,m)[/tex]
[tex]C = \$ \,86.8[/tex]
Guadalupe pagó $ 86.8 por 15.5 metros de encaje blanco.
b) El coste total de la cinta azul es: ([tex]c = 8.80\,\frac{\$}{m}[/tex], [tex]n = 4.75\,m[/tex])
[tex]C = \left(8.80\,\frac{\$}{m} \right)\cdot (4.75\,m)[/tex]
[tex]C = \$\,41.8[/tex]
Guadalupe tendría que pagar $ 41.8 por 4.75 metros de cinta azul, entonces, no le alcanzaría el dinero para comprarle eso. Tendría un déficit de $ 1.8.
Is π 100 rational or irrational
Answers
Answer:
it is irrational
Step-by-step explanation:
hope this helps
plz give brainliest
Answer:
Pi is an irrational number.
Step-by-step explanation:
It's a never ending number.
What is the slope of the line?
Answers
Answer:
slope is -x. Or -1/1.
Step-by-step explanation:
U can use the slope formula.
the question is in the photo
Answers
Answer: The answer would be x3 each number in y column.
Explain: When you multiply 3 by the x column, it'll show 3 times more in the y column.
2 × 3 = 6
5 × 3 = 15
And so on.
Therefore, your answer is it multiples 3 times each number.
#LearnWithBrainly!
Solve x – 1 – 5 = 2.
Answers
Answer:
x = 8
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
x-1-5=2
first you add 6 to 2 then you get x=8
Ashley just lit a new candle and then let it burn all the way down to nothing. Let LL represent the length of the candle remaining unburned, in inches, tt hours after candle was lit. A graph of LL is shown below. Write an equation for LL then state the slope of the graph and determine its interpretation in the context of the problem.
Answers
Answer:
I didn’t mean to click
Step-by-step explanation:
I can’t click off now sorry
Answer:
I'm also solving this out from delta math
Step-by-step explanation:
sorry for not giving you a answer >_<
A number line graph is shown:
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Based on the graph, which inequality is correct for a number that is to the right of -4?
0-2 <-4
O-3>-4
0 1 <-4
-5 >-4
Answers
Answer:
1<-4
Step-by-step explanation:
Answer:
-3 > -4 i believe i hope this helps!!
Step-by-step explanation:
2. Mr. Jansen needs to order picture frames for his paintings. He has $4,000 to buy 98 frames priced at $42 each. Mr. Jansen says he has enough money because 100x40=4,000. Is his reasoning corrector not? Explain your reasoning.
Answers
and if you do the math that he did (100 x 40 = 4,000) well that maybe true just not for this question
because if he has $4,000 and each picture frame equals $42 he will be able to get 95 picture frames
$42 x 95 = 3,990
which is under the price limit and if he bought one more for example ( $42 x 96 = 4,032) that will be over the limit
Answer:
The reasoning isn't correct
Step-by-step explanation:
This is becuase the given amount for each frame is 42 dollars not 40 like it is listed in the equation. Another reason the reasoning from Jansen is wrong is because he wants to buy 98 frames, not 100 like it was listed in the equation.
how do i read a untiled graph
Answers
Answer:
Read
Step-by-step explanation:
Answer:
The same as a title graph, you just don't read a title.
Step-by-step explanation:
i need help with my math
Answers
Answer:
a - 8^2
b-2^8
c-4^2
d-2^4
Answer:
The first on the left is the last one on the right, the second on the left is the second on the right, the third on the left is the third on the right, and the fourth on the left is the first on the right. Hope this helps.
Step-by-step explanation:
Find the length of a line segment with endpoints of –9 and 7.
A.
–16
B.
–2
C.
16
D.
26
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
c 16
Step-by-step explanation:
Solve for x: three halves plus one half times x equals two x need answer plz:(
Answers
x equals one
3/2+1/2x=2x
3/2+1/2=2x
2=2x
1=x
Answer:
2 = x
Step-by-step explanation:
3/2 + 1/2 times x = 2x
x by itself = 1x
Subtract 1x
3/2 + 1/2 times 1x - 1x = 2x -1x =
3/2 + 1/2 = 1x
3/2 + 1/2 = 4/2 = 2
2 = 1x
1x/1 = x
2/1 = 2
2 = x
retail store purchases a couch for $600 and marks it up 25% to sell. How much is the retailer asking for the couch?
Answers
Answer:
$750
Step-by-step explanation:
To find the new price, multiply the original price by 1.25, since there is a 25% increase in the price:
600(1.25)
= 750
So, the retailer is asking for $750 for the couch
6. Describe and correct the error in solving the equation.
X Х
0.4x = 0.2(x.-8)
0.4x = 0.2 x - 8
0.2x = -8
x = -4.
Answers
0.4x = 0.2(x - 8)
0.4x = 0.2x - 1.6
-0.2x -0.2x
0.2x = -1.6
x = -8
A triangle has rotation symmetry that can take any of its vertices to any of its other vertices. Select ALL conclusions that we can reach this.
A. All sides of the triangle have the same length
B. All angles of the triangle has the same measure
C. All rotations take one half of the triangle to the other half of the triangle
D, it is a right triangle
E. None of the sides of the triangle have the same length
F. None of the angles of the triangle have the same measure
Answers
Answer:
c e f
Step-by-step explanation:
C. All rotations take one half of the triangle to the other half of the triangle
E. None of the sides of the triangle have the same length
F. None of the angles of the triangle have the same measure
If a shape has a rotation symmetry, then the shape will look exactly the same after rotation. The conclusions to reach for a triangle that has a rotation symmetry are:
A. All sides of the triangle have the same length
B. All angles of the triangle has the same measure
Of all kinds of triangle, only an equilateral triangle has a rotational symmetry.
This means that:
All sides of the triangle must be the sameAll angles of the triangle must be the sameThe complete length of each side are rotated (not half).The above points imply that: options (a) and (b) are true
See attachment for an illustration of rotation symmetry of a triangle.
Read more about rotation symmetry at:
https://brainly.com/question/1597409
Evaluate the expression for the given values of the variables.
5d − 4e − 14 for d = 5 and e = −7
When d = 5 and e = −7, the expression is equal to
Answers
Answer:
39
Step-by-step explanation:
5(5) - 4(-7) - 14 is what the equation should look like.
Just simplify the expression.
write 1.359 x 10^5 in standard form
Answers
The given number is already in the standard form i.e. 1.359 x 10⁵.
What is standard form?Standard form refers to any number that may be expressed as a decimal number between 1.0 and 10.0 when multiplied by a power of 10.
When working with extremely big or extremely small numbers, standard form, also known as standard index form, may be quite helpful. It is based on the use of powers of 10 to describe the size of a number.
Scientists may compare the orders of magnitude of various values using standard form, which enables them to understand events and make helpful predictions.
It is given that,
1.359 x 10⁵
We have to convert the given number is in standard form.
Thus, the given number is already in the standard form i.e. 1.359 x 10⁵.
Learn more about the standard form here,
https://brainly.com/question/17264364
#SPJ2
What is the solution for x 10x-3x+8=-3+7x+11
Answers
Answer:
there is not a solution to this equation
Step-by-step explanation:
10x - 3x + 8 = -3 + 7x + 11
simplify
7x + 8 = 8 + 7x
there is not a solution to this equation
Answer:
x=2
Step-by-step explanation:
add the x's on one side and then subtract it by 7x. (10x- 7x)
then -3 + 11=8
8-8=0
transfer 2 to the other side x=2
what's
[tex]4 \times4 \times 4[/tex]
what's 4 * 4
Answers
Answer:
4×4×4 = 64
4×4 = 16
Explanation : 4×4×4 could also be 4 to the third power .
Answer: The answer to this basic math question with the 2 given following basic math expressions are the following answers that have been provided to you:
[tex]4 * 4 * 4 = 64.[/tex] [tex]4 * 4 = 16.[/tex]Step-by-step explanation: Mmmm, that was super extremely easy, so anyway, here is a basic step in order to evaluate the 2 given following basic math expressions:
[tex]4 * 4 * 4[/tex] could also be 4 to the third power. [tex]4 * 4[/tex] could also be 4 to the second power.It means it's the exponent power.
I hope that my full given answer with my full given step-by-step explanation is very helpful to your own basic math question with the 2 given following basic math expressions, please mark me as Brainliest, take care, always be safe, and have a great holiday winter break, Merry Christmas and a happy new year! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
The time, in seconds, that it takes a pendulum to swing back and forth is modeled by the equation below. f (l) = 2 pi StartRoot StartFraction l Over 32 EndFraction EndRoot, where l is the length of the pendulum in feet What is the approximate length of a pendulum that takes 2.4 pi seconds to swing back and forth?
Answers
Answer:
46.08 feet.
Step-by-step explanation:
Given that, for length, [tex]l[/tex] feet, the time period, [tex]f(l)[/tex], of the pendulum is
[tex]f(l)=2\pi\sqrt{\frac{l}{32}}[/tex].
As the time period equals the time taken by the pendulum in one back and forth motion, so, actually, the given [tex]2.4\pi[/tex] seconds to swing back and forth is the time period.
Let [tex]l_0[/tex] feet be the length of the pendulum for the time period [tex]2.4\pi[/tex] seconds, so
[tex]f(l_0)=2.4\pi[/tex]
[tex]\Rightarrow 2\pi\sqrt{\frac{l_0}{32}}=2.4\pi[/tex]
[tex]\Rightarrow \sqrt{\frac{l_)}{32}}=1.2[/tex]
[tex]\Rightarrow \frac{l_0}{32}=(1.2)^2[/tex] [squaring on both the sides]
[tex]\Rightarrow l_0=1.44\times32[/tex]
[tex]\Rightarrow l_0=46.08[/tex]
Hence, the approximate length of a pendulum that takes [tex]2.4 \pi[/tex] seconds to swing back and forth is 46.08 feet.
Answer:
the answer is d on edge 2020
Step-by-step explanation:
Write the equation of a quadratic with x-intercepts at (-1,0) and (4,0)
Answers
Answer:
y = x² - 3x - 4
Step-by-step explanation:
Given that the x- intercepts are x = - 1 and x = 4, then the corresponding factors are
(x + 1) and (x - 4) and the quadratic is the product of the factors, that is
y = (x + 1)(x - 4) ← expand using FOIL
y = x² - 3x - 4
7.(02.02 LC)
Which of the following numbers can be expressed as a decimal that terminates? (1 point)
7 over 4, 5 over 9, 3 over 8, 2 over 3
Answers
Answer:
The answer is 7 over 4, and 3 over 8.
Step-by-step explanation:
When the answer choices are divided the stop and can not be repeated. On the other hand, the other two can.
Answer:
The answer is 7 over 4, and 3 over 8.
Step-by-step explanation:
When the answer choices are divided the stop and can not be repeated. On the other hand, the other two can.
How do I find w using this table?
Answers
HURRY ILL MARK BRAINLIEST
Answers
Answer: B & D
Step-by-step explanation: Trust me
can someone help please
Answers
Question 4 Multiple Choice Worth 1 points)
(04.02 LC)
What is the solution to the following system of equations?
X - 3y = 5
2x + y = 10
(5,0)
(0,5)
(7,0)
(0,7)
Answers
Answer:
What do you mean?
Step-by-step explanation:
Answer:
( 5, 0 )Step-by-step explanation:
x - 3y = 5
2x + y = 10 multiply by 3 to eliminate y and solve for x
x - 3y = 5
6x + 3y = 30 then add
7x = 35
simplify:
x = 35 / 7
x = 5
substitute x = 5 back into the eq.2
2x + y = 10
2(5) + y = 10
y = 10 - 10
y = 0
therefore the answer is ( 5, 0 )
