The answer is the last one. The one with (-60,0) (0,80) and (60,0)
describe how you can
identify if two lines are coinciding using substitution, elimination, and/or
graphing methods? *
To use substitution to identify if two lines intersect,
1. Rearrange one of the two given equations so that only one variable is on one side of the equation with all other values on the other side of the equation. (if needed)
2. Plug this new equation into the other (in place of a variable)
3. Solve the equation to get the answer of one of the variables
4. Plug this variable into one of the two original equations and solve for the second variable (if needed)
5. Plug both variables back into one of the original equations. If both sides of the equation are equal, the two lines do coincide.
Example:Equation 1: 2x+3y=9
Equation 2: x+8=3
1. Rearrange equation 2
x+8=3
x=3-8
x=-5
2. Plug -5 into the first equation as x
2x+3y=9
2(-5)+3y=9
3. Solve this equation
-10+3y=9
3y=9+10
3y=19
y=[tex]\frac{19}{3}[/tex]
4. Plug x and y back into the first equation
2x+3y=9
2(-5)+3([tex]\frac{19}{3}[/tex])=9
-10+19=9
9=9
Therefore, these two lines do coincide. The point of intersection is (-5,[tex]\frac{19}{3}[/tex]).
Using Elimination:To use elimination to identify if two lines intersect:
1. Multiply one or both of the equations by a factor so both equations have either an x or y coefficient that are equal or opposite of each other (if needed)
2. Add or subtract the two equations to get rid of one variable
3. Solve this new equation for a variable
4. Substitute this variable into one of the two equations to solve for the other
5. Plug both variables back into one of the equations. If both sides are equal, the two lines do coincide.
Example:Equation 1: 2x+3y=4
Equation 2: 4x+2y=3
1. For this specific system of equations, we would multiply the first equation by 2.
2x+3y=4
4x+6y=8
Notice how now, both equations have 4x in them, so we can subtract them:
2. Subtract the new equation from the second original equation
4x+6y=8
- 4x+2y=3
4y=5
3. Solve
4y=5
y=[tex]\frac{5}{4}[/tex]
3. Substitute y back into the first equations (any of the two equations will work) to solve for x
2x+3y=4
2x+3([tex]\frac{5}{4}[/tex])=4
2x+[tex]\frac{15}{4}[/tex]=4
2x=4-[tex]\frac{15}{4}[/tex]
2x=[tex]\frac{16}{4}[/tex]-[tex]\frac{15}{4}[/tex]
2x=[tex]\frac{1}{4}[/tex]
x=[tex]\frac{\frac{1}{4} }{2}[/tex]
x=[tex]\frac{1}{4}*\frac{1}{2}[/tex]
x=[tex]\frac{1}{8}[/tex]
4. Plug both variables back into the first equation (either equation works)
2x+3y=4
2([tex]\frac{1}{8}[/tex])+3([tex]\frac{5}{4}[/tex])=4
[tex]\frac{1}{4}[/tex]+[tex]\frac{15}{4}[/tex]=4
[tex]\frac{16}{4}[/tex]=4
4=4
Since the left side equals the right side, the two lines are coinciding.
Using Graphing Methods:To use graphing methods to identify if two lines coincide, we would just have to graph the line and identify if the two lines meet at a point of intersection/overlap each other.
I hope this helps!
How do you do this question?
Answer: Choice A
Explanation:
The sequence converges to a nonzero value, so as n gets very large, the partial sums will grow forever (since we're effectively adding at least 1 to each term regardless how large n gets)
The reason why [tex]s_n[/tex] approaches 1 is because the 1/n term goes to 0 when n gets very large.
An object is moving at a speed of 6 miles per month. Express this speed in feet per hour
Answer:
44 feet/hour
Step-by-step explanation:
6mi/month(5280ft/1mi)(1month/30days)(1day/24hrs)
Assuming the month has 30 days, object moves at 44 feet/hour. You want all the units to cancel till you get the ones you need, in this case feet/hr.
Correct pair
3x+5y=6
4x+2y=-6
Answer:
Step-by-step explanation:
6x + 10y = 12
-20x - 10y = 30
-14x = 42
x = -3
4(-3) + 2y = -6
-12 + 2y = -6
2y = 6
y = 3
(-3, 3)
quotient of Fraction 3 over 4 divided byFraction 3 over 4 .
Answer:
1
Step-by-step explanation:
The equation would look like this: ¾ ÷ ¾
When dividing fractions, you always flip the second one to receive the reciprocal, so the equation now looks like this: ¾ ÷ 4/3
If you cross simplify, the answer will end up being 1.
Please help me solve this I will give u brainlst :)
16. Solve the equation by factoring.
2² - 62-27=0
a. z = 3 or z = 9
b. z = 3 or z = -9
c. z = -3 or z = -9
d. z = -3 or z = 9
Answer:
Step-by-step explanation:
B
Given the graph of the absolute value function below write the function in the form?
Answer:
g(x)=|(2)(x+4)|-2
Step-by-step explanation:
B=0.5
h= -4
k= -2
HELP QUICK WILL GIVE BRAINLIEST
Step-by-step explanation:
Alright, -3r + 4(-3r + 2) = 53 how do I break it down and solve??
Answer:
r = -3
Step-by-step explanation:
-3r + 4(-3r +2) = 53
-3r + -12r + 8 = 53
-8 -8
-3r + -12r = 45
-15r = 45
Divide both sides by -15 to get
r = -3
Answer:
r = -3
Step-by-step explanation:
expand 4(-3r+2)
= -12r+8
add similar variables
= -15r+8=53
subtract 8 from both sides
= -15r+8-8=53-8
simplify
= -15r=45
divide 45 by -15
= -3
For each of the following questions, say whether the random process is a binomial process or not, and explain your answer. As part of your explanation, you will want to comment on the potential validity of each of the four things that must be true for a process to be a binomial process.
a. One basketball player attempts 10 free throws and the number of successful attempts is totalled.
b. Ten different basketball players each attempt 1 free throw and the total number of successful attempts is totalled.
Answer:
a
This process follows is a binomial process
b
This process is not a binomial process
Step-by-step explanation:
Considering the first statement
One basketball player attempts 10 free throws and the number of successful attempts is totaled.
This process is a binomial process because
The number of trials is finite Each trial is independent of the other There is only two possible outcome (make a basket and make no basket The probability of making a basket and not making a basket is constant throughout the trialsOne basketball player attempts 10 free throws and the number of successful attempts is totaled.
This process is not a binomial process because chance that is the probability of success and failure will remain constant throughout the trial is not equal (what this means is that given the number of player is more than on their probability of success and failure will differ.)
The city has granted you a low property tax rate on your new hotel, and you will be paying $302,850 in taxes in the first year. After the first year, the tax you pay will then increase by 2% per year for the next 3 years. What will you pay in taxes at the end of the third year?
Answer:
the answer is $332135 for this question
Find the product.
(36 + 4) (262 – 6 + 4)
Answer:
10,400
Step-by-step explanation:
(36+4)= 40
(262-6+4)= 260
(40)(260)= 10,400
Answer:
10,400
Step-by-step explanation:
Add 36 + 4
40
Now we do the second parentheses.
262 - 6 = 256
256 + 4 = 260
Now we multiply.
40 multiplied by 260 = 10,400
Hope I helped :)
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Make w the subject of the relation p=2 (k+w)
Answer:
hope that will help you
w = ( p - 2k )/2
Step-by-step explanation:Hi there !
p = 2(k + w)
2k + 2w = p
2w = p - 2k
w = ( p - 2k )/2
Good luck !
Describe the Transformation and CHOOSE ALL THE
CORRECT ANSWERS! (MORE THAN 1 RIGHT
ANSWER).
f(x) = -2(x+3) 3 - 3
y-intercept of (-2,2) and (-5,-4)
Answer:
-8
Step-by-step explanation:
Utilizando la equivalencia indicada, resuelve el siguiente ejercicio:
1 galón = 3.785 litros
42 galones = ____ litros
Answer:
158.97 litros
Step-by-step explanation:
Multiply 42 by 3.785 to get 158.97.
what is the answer of the question I need urgent answer please
Step-by-step explanation:
therefore the answer is 25/9
Simplify the expression using the following values:
w=−4; v=5; u=2
4w² − v + 3u
Given:
w=-4v=5u=2Step by step explanation:
Step 1:
[tex]4w² − v + 3u[/tex]
Step 2:
[tex] = {4( - 4)}^{2} - 5 + 3 \times 2[/tex]
Step 3:
[tex] = 4(16) - 5 + 6[/tex]
Step 4:
[tex] = 64 - 5 + 6[/tex]
Step 5:
[tex] = 64 + 1[/tex]
Step 6:
[tex] = 65✓[/tex]
(16/81
[tex](16 \div 81)1 \div 4[/tex]
Two consecutive vertices of a regular octagon are located at (1, 4) and (4,8). This octagon's perimeter is.....?
Answer:
40 units
Step-by-step explanation:
An octagon is a polygon with 8 sides. A regular octagon is an octagon in which all their sides and angles are equal to each other.
Since the vertices of a regular octagon are located at (1, 4) and (4,8), hence the length of the side is gotten using the formula for calculating the distance between two points [tex]X(x_1,y_1)\ and\ Y (x_2,y_2)[/tex].
[tex]|XY|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Hence:
[tex]Length=\sqrt{(4-1)^2+(8-4)^2}=5\ units[/tex]
Since all the sides of a regular octagon are equal, therefore:
Perimeter = 8 × length = 8 × 5 = 40 units
First, rewrite 17/25 and 7/10
so that they have a common denominator.
Answer:
85/50. 35/50
You would times 17/25 by 5 and you would get 85/50 which would simplify to 1 35/50
you would multiply 7/10 by 5 to get 35/50
will he take the job direct speech into indirect speech
Will he take the job?
Indirect Speech:He asked whether he would take the job.
Hope it helps.ray4918 hereNOBODY IS ANSWERING THIS PLEASE PLEASE PLEASE ANSWER ILL LOVE YOU FOREVER
Car A is traveling east at a steady speed of 60 miles per hour after 2 hours, it is 130 miles east of Johnstown. car B is traveling east on the same road. its distance east of Johnstown is represented by the graph.
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE HELP
Answer:
D
Step-by-step explanation:
It looks right
sorry if it’s wrong
in 3 1/2 months John collected a debt of $70.00. What was the average amount of debt John collected per month?
Answer:
The average amount of debt John collected per month is $20/ month
Step-by-step explanation:
Given;
total debt collected by John, = $70.00
total number of months, = 3 1/2 months = 7/2 months
The average amount of debt John collected per month is given by;
[tex]Average \ amount \ per \ month = \frac{Total \ amount \ of \ debt}{total \ number \ of \ months} \\\\Average \ amount \ per \ month =\frac{70}{1} *(\frac{2}{7} )\\\\Average \ amount \ per \ month = \$20 \ / month[/tex]
Therefore, the average amount of debt John collected per month is $20/ month
Sarah is 1 1/2 meters tall. Which of the following is equivalent to 1 1/2 meters?
A. 150 millimeters
B. 1,500 millimeters
C. 100 millimeters
D. 1,000 millimeters
Answer:
B. 1,500 millimeters
=
Drag up the correct symbol to make each statement true.
Answer:
1. >
2.>
3.<
4. <
Step-by-step explanation:
I am doing it from top to bottom
I hope this helps! :)
Check all of the irrational numbers.
Answer:
√36, √17, 0.33333...., 1.2874....
Step-by-step explanation:
irrational numbers - a number that cannot be exactly expressed as a ratio of two integers.
The value of 2 in 724,638, is 20,00p?
Step-by-step explanation:
total value would be 20,000
place value is hundreds of thousands
that's my opinion cuz I didn't fully understand it but I tried thanks
Washington Middle School has the annual musical production this weekend. Of the 900 tickets sold, 45 percent are for the Friday night performance. How many tickets were sold for the Friday night performance?
Answer:
405 tickets
Step-by-step explanation:
Answer:
45% of 900=900(0.45)=405. The third answer Is correct.
Step-by-step explanation: i took a quiz with this