Answer:
The slope of the perpendicular line is -2.
Step-by-step explanation:
A perpendicular line has a slope that is the negative inverse of the slope of the reference line. The reference line in this problem is 3x-6y=144.
Let's rearrange this equation to standard slope-intercept form of y=mx+b, where m is the slope and b is the y-intercept (the valuue of y when x=0).
3x-6y=144
-6y=144-3x
-6y=-3x + 144
y = (3/6)x + (144/-6)
y = (1/2)x - 24
This line has a slope of (1/2) and a y-intercept of -24. A line perpendicular to this will have a slope that is the negative inverse of (1/2). This would be -2. The new line will take form:
y = -2x + b
We are not given b, and there is not enough information to calculate one, so let's assume a value of -24, so that it intersects the original line at (0, -24). See the attached graph.
Line A passes through the points (-1, 5) and (3, 21). Line B passes through the points (4, -2) and (-3, 19). Find the point where line A intersects line B. A. B. C. D.
A line's angle of slope between two points is (5, -4)
How to calculated the line's Angles?A line's angle of slope between two points is given as follows:
m = y2-y1/x2 - x1
A line passing through a given point and having the following equation:
y - y₁ = m(x - x₁)
Line A:
m = -1 - 5 /3- (-1) = -6 /4 = -3/2
y - 5 = -3 / 2(x +1)
y = -3/2 (x + 1) + 5.
Line B:
m = -1-2/6-7 = -3 / -1 = 3
y - 2 = 3 (x - 7)
y = 3(x -7) + 2.
Point of intersection denotes identical x and y coordinates.
So:
3(x - 7)+ 2 = -3/2 (x + 1 ) +5
3x - 21 + 2 = -3/2x - 3/2 +5
3x - 19 = -3/2x + 7/2
6x - 38 = 3x +7
6x + 3x = 7 + 38
9x =45
x = 5
y = 3(5 - 7) + 2 = 3(-2) + 2 = -4.
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If light strikes a plate mirror at a 36° angle of incidence, what would you expect the resulting angle of reflection to be?
According to the angle of incidence, the angle of reflection will also be 36°
Angle of incidence:
In math it means the angle which an incident line or ray makes with a perpendicular to the surface at the point of incidence.
Given,
Here we need to find the If light strikes a plate mirror at a 36° angle of incidence, then what would you expect the resulting angle of reflection to be.
Here we know that, the incident ray, the reflected ray and the normal ray at the point of incidence all lies in the same plane.
Then the angle of incidence is equal to the angle of reflection
And it can be written as,
=> Angle of incidence = angle of reflection
As per the 2nd law given above, we say that if a light ray incident at 45°, then the reflected angle will also be 45°
Here we know that the value of,
=> Angle of incidence = 36°
Therefore, the Angle of reflection = 36°
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If 1000K is 5T How many K's do i need for 4200 T's
Answer:
840000 K's
Step-by-step explanation:
Since 5T = 1000K then T = 1000K/5 which is T = 200K. Multiply both sides by 4200 so you can find how many K's needed for 4200T's.
[tex]\displaystyle{4200T=200K\cdot 4200}\\\\\displaystyle{4200T=200K\cdot 4200}\\\\\displaystyle{4200T=840000K}[/tex]
Therefore, you need 840000 K's for 4200T's.
Answer:
840 000 K
Step-by-step explanation:
5 T = 1000k
4200 T = ? K
⇒4200 × 1000 ÷ 5
⇒840 000 K answer.
hope that helps...
Simplify 5a
8c + b + 3c-9a6b. (1 point)
Answer:
11c-63ab
Step-by-step explanation:
8c +b+3c-9a6b
( b n 6b are common)
8c + 3c-9a7b
(8c and 3c are also common)
11c-9a7b
11c-63ab
Please help me!
Thank you
The required measures of the angle are given as,
∠JKL = 72° ∠MLK = 108° ∠JMK = 36°
∠MJL = 54° ∠KNL = 90°
Given that.
The measure of the rhombus is given, we have to determine the measure of the angles,
orientation of one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as angle.
Here,
∠JKL= 2 × ∠JKM = 72°
∠MLK = 180 - 2 × ∠JKM = 108°
∠JMK = ∠JKM = 36°
∠MJL = ∠MLK/2 = 54°
The diagonal of the rhombus bisect each other at an angle of 90°
So,
∠KNL = 90°
Thus, all the measure of the angles is shown above.
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£11000 is invested in an account paying 2.25% per annum. How much will interest will be in the account at the end of 4 years?
Answer:
£990
Step-by-step explanation:
£11000 * 2.25% * 4 = £990
please help me. thanks.
The angles which makes 45° and 90° in square are shown below.
What is square?The square is a 4 sided figure, each side of the square is equal and make a right angle.
The area of square having sided a unit can be given by a² square unit.
Given that,
ABCD is a square,
The angles which are 45°,
∠ CAD, ∠ CAB, ∠ DBA, ∠ DBC, ∠ ACB, ∠ ACD, ∠ BDA, ∠ BDC
The angle which are 90°,
∠ DAB, ∠ ABC, ∠ BCD, ∠ ADC
And central angles also make 90°,
∠ AEB, ∠ BEC, ∠ CED, ∠ DEA
In square there is no angle that neither makes 45° nor 90°.
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Angles categorized in 45° and 90° are ∠DBC = ∠BDC =∠BAC = 45° and
∠ABC = ∠AED = 90° respectively.
What is a square?Square is a polygon which has 4 sides. All four sides of square are equal length and perpendicular to each other that means the angle between two adjacent side is 90°.
Given that ABCD is a square surface. And diagonal of square creates two isosceles triangles.
So the ∠ABC = ∠BCD = ∠CDA = DAB = 90°
Here, BD and AC are two diagonals of a square ABCD and E is the intersection point of diagonals.
Diagonals cut each other perpendicular.
So, ∠AED = 90° and ∠EAD = ∠EDA = 45°
Now to find ∠BAC;
we have ∠ABC = 90° so from the property of isosceles triangle
∠BAC = ∠BCA = 45°
In isosceles triangle BCD,
∠BCD = 90° and ∠DBC = ∠BDC = 45°
Therefore, the angles categorized in 45° and 90° are ∠DBC = ∠BDC =∠BAC = 45° and ∠ABC = ∠AED = 90° respectively.
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regarding antipoverty programs intended to supplement family income, One adjustment that can be made is to gradually reduce benefits as incomes rise. However, the more gradual the phase-out of benefits, the _____ the burden on taxpayers.
Safety net policies like food assistance, housing assistance, and family tax credits keep millions of Americans from poverty each year and reduce hardship for millions more.
What are some examples of policies that have been created to address poverty in the United States?The interaction of labor supply and demand on the market determines wage rates. The business will hire as much labor as its marginal labor cost equals its marginal labor revenue output.The interaction of labor supply and demand on the market determines wage rates. The business will hire as much labor as its marginal labor cost equals its marginal labor revenue output. The definition of a wage rate is the amount paid to employees. It is one of the major topics covered in human resource studies. It depends on two things: either the amount of production hours or productivity at work. This field of research is called wage rate economics. Wage rates quantify the fundamental compensation for each unit of output or of time.Contrarily, in a wage system, a person is paid according to the current wage rate, which is subject to change.To learn more about demand refer to:
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Solve the following compound inequality. 5x+7<-3 or 3x-4>11
Answer:
X <-2 or X > 5
Step-by-step explanation:
What is 5x-2+7x-5 simplified?
Answer:
12x -7
Step-by-step explanation:
Hello please graph this with steps thank you
Graph f(x)=-x^4+1
The graph of the quartic function f(x) = -x⁴ + 1 is attached below with points at (-1 ,0), (0, 1) and (1, 0)
Graph of a Quartic ExpressionQuartic polynomials are continuous curves like the cubic polynomials. This means that you can draw the graph of the quartic without lifting your pencil from the page. There are no holes or jumps in the curve but, unlike the cubic graph, a graph of the quartic looks like a W or an M.
The general form of quartics of this form is y = a(x − h)⁴ + k The turning point is at (h, k). When sketching quartic graphs of the form y = a(x − h)⁴ + k, first identify the turning point. To add further detail to the graph, the x-axis and y-axis intercepts are found.
In this function given;
f(x) = -x⁴ + 1
This quartic function has points at (-1 ,0), (0, 1) and (1, 0)
Kindly find the attached graph below
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an experienced bricklayer can build a small wall in 3 hours. her apprentice can complete the job in 6 hours. find how long it takes if they work together.
For both the experienced bricklayer and her apprentice working together it will take 2 hours to complete the work.
This is type of combined rate or time and work problem. Here, the experienced bricklayer takes 3 hours and apprentice take 6 hours to complete the job. So the experienced bricklayer completes 1/3rd of work in an hour and her apprentice completes 1/6th of work in an hour.
Let us consider they would take x hours to complete the work together. The work done is the summation of product of time taken by each person to do the work and the rate of work done by each person.
x (1/3 + 1/6) = 1
x = 1/(1/3 + 1/6)
=18/9
=2
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A condo is listed for $230,000. After a year, It’s marked down to $200,000. What was the percent change?
Answer:
13.0434782609%
Step-by-step explanation:
200000 - 230000
-----------
230000
x 100% = 13.0434782609% - 100 = 86.9565217
86.9565217 x 230,000 = 200,000
Suppose DF=34, AC=36, and BC=72
I already got AB and BE I just need DE
Calculate the quotient and enter it below.
19 ÷ (-1)
Answer here
Answer:
-19
Step-by-step explanation:
Use a calculator
please give a reasonable answer please and thank you!
The inequality on the graph is a linear inequality, and it can be written as:
y > 2x - 4
What inequality is shown in the graph?On the graph, we can see a linear inequality, we can see a dashed line with a positive slope, and the shaded area is above that line, so the inequality is of the form:
y > line.
A general linear equation is written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
If the line passes through two points (x1, y1) and (x2, y2), then the slope is:
a = (y2 - y1)/(x2 - x1)
We can find two points on the graph, we can see that the line passes through (0, -4) and (2, 0), then the y-intercept is -4 and the slope is:
a = (0 + 4)/(2 - 0) = 2
y = 2x - 4
then the inequality is:
y > 2x - 4
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Please help! Find the measure of angle 1in the rhombus
Answer:
21°
Step-by-step explanation:
There are 28 student desks in ms. Johnson's. Each desk measures 26. 17 inches long. If you were to line up all the desks end-to-end, how long would all the desks be? do not include units.
Answer: 732.76
Step-by-step explanation: 28 x 26.17 = 732.76, and if by units you mean decimals, then its 732
When we say, "a system of linear equations works", what does that really mean?
The linear equations (the system) are productive members of society and are able to hold a steady full time job working 40
hours a week.
The linear equations (the system) share one or more ordered pairs (x,y) when graphed.
The linear equations (the system) have nothing in common.
The linear equations (the system) have the same y-intercept when graphed.
When we say, "a system of linear equations works" it means that the linear equations share one or more ordered pairs (x,y) when graphed.
Why are linear functions used?In many practical applications in daily life, linear equations are a crucial tool in science. They enable scientists to, among other things, make predictions, compute rates, and characterize relationships between two variables in the physical world. In order to see trends, linear equations are often graphed.
What are four types of linear functions?Slope intercept form, direct variation, point slope form and standard form are four types of linear functions.
When we have a system of linear equations and when we solve them simultaneously we get one or more ordered pair depending upon the variable in system.
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Find the slope of the line y=14x–1.
Write your answer as an integer or as a simplified proper or improper fraction.
The slope of the line y = 14x – 1 is 14.
To find the slope of a line, we need to know two points on the line. We can choose any two points, as long as they are not the same. For example, we can choose the points (0, -1) and (1, 13):
y = 14x – 1
y = 14(0) – 1 = -1 when x = 0
y = 14(1) – 1 = 13 when x = 1
The slope of the line is the change in y divided by the change in x between these two points. In this case, the change in y is 13 – (-1) = 14, and the change in x is 1 – 0 = 1. Therefore, the slope of the line is 14/1 = 14.
We can also write the slope as a simplified fraction. In this case, 14 is already a simplified fraction, so we don't need to simplify further. Therefore, the slope of the line y = 14x – 1 is 14.
What is the slope of the line that passes through the points (-4, 5) and (-7,8)?
rite your answer in simplest form.
Answer:
m= -1
Step-by-step explanation:
Write a recursive formula for an, the nth term of the sequence 16,-8,4
Answer: If a1 = 16 and a2 = -8, then we can write a recursive formula for the nth term of the sequence as follows:
an = a(n-1)/2
This formula states that the nth term of the sequence is equal to the previous term (n-1) divided by 2. For example, if n = 3, then a3 = a(3-1)/2 = a2/-8/2 = 4.
We can also write this formula in terms of the initial values of the sequence as follows:
a(n) = (-1)^(n-1) * 8
This formula states that the nth term of the sequence is equal to (-1) raised to the power of (n-1), multiplied by 8. This formula will always give the correct value for the nth term of the sequence, regardless of the initial values of the sequence.
Is x^4+2x^3-x^2+7x+11 a quintic binomial
The category of the expression x⁴ + 2x³ - x² + 7x + 11 is not quintic binomial
How to determine the category of the expression?From the question, we have the following expression that can be used in our computation:
x^4+2x^3-x^2+7x+11
Rewrite this expression properly
So, we have the following representation
x⁴ + 2x³ - x² + 7x + 11
The degree of the above polynomial is 4
As a general rule, a quintic binomial is any polynomial that has a degree of 5
A degree of 5 and a degree of 4 are not the same
Hence, the expression is not a quintic binomial
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Hooke’s Law for springs states that the distance a spring is
stretched or compressed from rest is directly proportional to the force applied to
the spring. Suppose a force of 16 lbs stretches a spring 5 inches from rest. What
force is required to stretch the same spring 13 inches from rest, if it’s possible
According to Hooke's law, a material's strain will increase in direct proportion to its applied stress up to its elastic limit. When elastic materials are stretched, atoms and molecules deform up to a point of stress, after which they return to their original shape.
What is Hooke's law?Hooke's law only approximates in first-order linear terms how springs and other elastic bodies actually react to applied forces. Since no material can be stretched or squeezed beyond a given size without permanently deforming or changing its condition, it must inevitably fail once the forces reach a certain threshold.
Many substances will diverge from Hooke's law clearly before they reach such elastic limits.
On the other hand, as long as the forces and deformations are small enough, Hooke's law provides a close approximation for the majority of solid bodies. Since it is the basis of many fields including seismology, molecular mechanics, and acoustics,
Hooke's law is widely applied in all branches of science and engineering. It.
Hence, a material's strain will increase in direct proportion to its applied stress up to its elastic limit. When elastic materials are stretched, atoms and molecules deform up to a point of stress, after which they return to their original shape.
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Which of the following equations have exactly one solution?
Choose all answers that apply:
(Choice A)
A
-5x+12=5x-5
(Choice B)
B
-5x+12=-5x-12
(Choice C)
C
-5x+12=5x+12
(Choice D)
D
-5x+12=-12x-12
Option A and D are appropriate.
What does the one solution mean?There is just one correct answer to some equations. There is only one value for the variable in these equations that causes the equation to be true. If you solve an equation and the result is a variable equal to a number, the problem has just one solution.
To date,
1) x has just one solution since -5x + 12 = 5x -5
-5x -5x = -5 -12
-10x = -17
x = 1.7
2) -5x+12=-5x-12 -5x + 5x = -12-12
0x (not possible)
3) -5x+12=5x+12 -5x + 5x = +12-12
0x ( not possible)
4) The equation -5x+12=-12x-12
-5x + 12x = -12 -12
7x = -24
x = -24/7, indicating that x has just one solution.
Option A and D thus have a single solution.
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if you look at the results section of a psychology research article, two signs that scores are significantly different are that (a) the error bars of the groups will not overlap, and (b) the p-value will be less than 0.05.
If Two signs that scores are significantly different then (a) the error bars of group will not overlap
Error bars are graphical representations of data variability that are used to indicate the error or uncertainty in a reported measurement on graphs.
The estimated error in a measurement is indicated by error bars. In other words, an error bar represents the degree of uncertainty in a value.
When the standard deviation error bars overlap significantly, it is an indication that the difference is not statistically significant. To reach a conclusion, you must conduct a statistical test.
When the standard deviation error bars overlap even less, it indicates that the difference is unlikely to be statistically significant.
For significantly different group , we also have p-value greater than 0.05
So, Option (b) is incorrect.
Hence, (a) The error bars of the groups will not overlap is correct
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A square coaster has a side length of 5/12 feet on each side.
What is the area of the coaster???
HELP!!! FAST!!
Answer:
[tex]\frac{25}{144}[/tex] ft
Step-by-step explanation:
We can find the area by multiplying 2 sides together
Multiply [tex]\frac{5}{12}[/tex] × [tex]\frac{5}{12}[/tex] to find the area
[tex]\frac{5}{12}[/tex] × [tex]\frac{5}{12}[/tex] = [tex]\frac{25}{144}[/tex]
The area of the coaster would be [tex]\frac{25}{144}[/tex] ft
Can you help me thank you
Answer:
A.) [tex]\frac{1}{5^6}[/tex]
Step-by-step explanation:
To simplify [tex](5^2)^3[/tex], use the exponent rule that states [tex](a^m)^n=a^{mn}[/tex]
So,
[tex](5^2)^3=5^{2*3}=5^6[/tex]
Use the same exponent rule to begin simplifying [tex](5^4)^{-3}[/tex]:
[tex](5^4)^{-3}=5^{4*(-3)}=5^{-12}[/tex]
To further simplify [tex]5^{-12}[/tex], use the exponent rule that states [tex]a^{-m}=\frac{1}{a^m}[/tex]
So,
[tex]5^{-12}=\frac{1}{5^{12}}[/tex]
Then multiply the two new expressions as indicated in the original problem:
[tex](5^6)(\frac{1}{5^{12}})=\frac{5^6}{5^12}=\frac{1}{5^6}[/tex]
Alternatively, you could use the exponent rule that states [tex]a^m*a^n=a^{m+n}[/tex]
where
[tex]a^m=5^6\\a^n=5^{-12}[/tex]
So,
[tex](5^6)(5^{-12})=5^{6+(-12)}=5^{-6}=\frac{1}{5^6}[/tex]
A line passes through the point (3, 7) and has a slope of 4.
Write an equation in point-slope form for this line.
Answer:
Step-by-step explanation:
4y=3x+7
divide both sides by 4
y= 0.75x+1.75
or in fraction
y=3/4x+7/4
Which table represents a linear function?
X
1
2
3
4
X
1
2
234
1
2
3
4
X12
A5951
y
y
-5
10
-15
20
SLE 888SK
10
20
40
-5
The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times then the table 4 represents a linear function.
What is meant by linear functions?An algebraic equation with simply a constant and a first-order (linear) term, such as y = mx + b, where m is the slope and b is the y-intercept, is known as a linear equation. The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times.
The slope-intercept form of the equation for a linear function. As a result, it is written as f(x) = mx + b, where b is the line's y-intercept and m is the slope. Tables with a constant rate of change are represented by linear functions.
Table 4 represents a linear function
From the given tables, only table 4 represent a linear function.
As x's values change by 1, the matching y's values change by 5. This is why.
The table exists represented as:
x y
1 -5
2 0
3 5
4 10
Therefore, table 4 represents a linear function.
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