Based on slope, how do you know when two lines are perpendicular? A. The slope of one line must be equal to reciprocal of the other for the two to be perpendicular. B. The slope of one line must be the negative reciprocal of the other for the two to be perpendicular. C. If the slopes of the 2 lines are equal, then they are perpendicular. D. The slope of one line must be the negative of the other slope for the two to be perpendicular.
Answers
Answer:
B
Step-by-step explanation:
Perpendicular lines have negative reciprocal slopes. This means they have opposite signs (negative) and their numerators and denominators are switched ( reciprocal).
For example, these slopes are perpendicular:
3/2 and -2/3
(3/2--negate--> -3/2---> reciprocal--> -2/3)
Therefore, the answer is B. The slope of one line must be the negative reciprocal of the other for the two to be perpendicular.
Related Questions
Evaluate the expression.
0.2t when t = 1.6
Group of answer choices
0.32
3.2
0.032
32
Thanks!
Answers
Answer: .32
Step-by-step explanation:
1.6
X0.2
——-
.32
So the trick here is to look at the decimals. We can solve this problem like it’s 16×2, as long as we add the decimal points back in. so in this case the decimal points are in the tenths spot so we move them twice in the 32. I hope the picture helps too. Hope this helped!
Help me pleaseee for 20 pts
Answers
Step-by-step explanation:
Julia loves collecting baskets. Every month she adds two new baskets to her collection. In the month of March she has 60 baskets. She’s worried she will soon run out of room in her apartment to keep her baskets. Write an equation that represents the percent of change of her basket collection from the beginning of the year to the end of the year, then solve.
Answers
The linear function that represents the amount of baskets in the xth month of the year is given as follows:
The percentage of her collection that she needs to get rid of is of 3.85%.
Linear Function:-
The definition of a linear function is:
y = b + mx
In which the parameters of the equation are given as follows:
•b is the value of y when x=0
•m is the rate of change for each unit of x
Every month she adds 2 new baskets to her collection, hence the slope is of : m = 2
Then: y = b + 2x
From the March amount, when x = 3, y = 60, hence the intercept b is given as follows:
60 = b + 6
b = 54
Hence the equation is: y = 54 + 2x
At the end of the year (12 months) the amount of baskets that she will have is of:
y = 54 + 2 × 12 = 78
Hence, she has to get rid of 3 baskets, as 78 - 75 = 3, and the percentage is of:
p = 3/78 × 100% = 3.85%.
Answer:
Step-by-step explanation: The linear function that represents the number of baskets in the month of the year is given as follows:
The percentage of her collection that she needs to get rid of is of 3.85%.
The definition of a linear function is:
y = b + mx
In which the parameters of the equation are given as follows:
•b is the value of y when x=0
•m is the rate of change for each unit of x
Every month she adds 2 new baskets to her collection, hence the slope is: m = 2
Then: y = b + 2x
From the March amount, when x = 3, y = 60, hence the intercept b is given as follows:
60 = b + 6
b = 54
Hence the equation is: y = 54 + 2x
At the end of the year (12 months) the number of baskets that she will have is:
y = 54 + 2 × 12 = 78
Hence, she has to get rid of 3 baskets, as 78 - 75 = 3, and the percentage is of:
p = 3/78 × 100% = 3.85%.
What is the value of the expression (−9)(−10)?
(NEED AWNSER ASAP)
Answers
Answer:
90
Step-by-step explanation:
when you multiply two negative integers they always equal positive so in this case its (-9) x (-10), you can just do 9x10 which gets u 90
Multiplying two positive integers always result in a positive integer.
Multiplying two negative integers always result in a negative integer.
Multiplying a positive or negative integer always result in a negative integer.
because negative x negative is always positive and 9x10 is 90
Corrects answers only
Which of the following statements show a characteristic of a statistical question?
The question is focused.
There is a population that is being studied.
The distribution can be broken in categories.
The question allows for surveys to be conducted.
Answers
Answer:
There is a population that is being studied.
Answer:
The answer is B. Hope this helps!
simply.... plz someone give me the answer
Answers
Answer:
Y= 9xi/4 - 9i - 11
X= 4yi/9 - 4 + 44i/9
what is the highest number known to man
Answers
Answer:
Infinity
Step-by-step explanation:
You cannot go higher than this
Answer:
1 is the highest number known to man
(10 points for answering question)
Which of the following equations is an example of the Associative Property of Addition?
Answers
Pick a number from 1 to 10. Use that number to verify your three expressions (the original, the one from 3a, and the one from 3b) are equivalent by substituting it into each expression. Show all your work for complete credit.
Answers
Answer:
incomplete question
Step-by-step explanation:
A toy company's total payment for salaries for the first two months of 2012 is $40,765. Write and solve an equation to find the salaries for the second month if the first month’s salaries are $10,205.
Answers
Answer:
its D
12,455 + x = 23,894
x = 10,560
Step-by-step explanation:
Let's say that the variable 'x' represents the salaries for the second month, so out equation would be:
10,205 + x = 23,894
To solve, we must isolate the variable by subtracting 12,455 from both sides:
10,205 + x = 23,894
-10,205 -10,205
x = 10,560
So, the second month's salary was $10,560
Step-by-step explanation:
Answer: x = $30,560
Step-by-step explanation:
1. Let the second month payment be x
2. The first month + The second month = both of the months
3. So substituting: 10,205 + x = 40,765
4. Subtract 10,205 from both sides: x = 30,560
help idk what is this
Answers
Please help and you get a cake
Answers
Answer:
Mean = 33.7
Median = 34.5
Mode = 34
Range = 33
After adding 26....
mean decreases by 0.7
median decreases by 0.5
mode is 34
range is 33
Step-by-step explanation:
mean = sum of all the data values/number of data values
= (18 + 19 + 20 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7
To find median arrange the values in increasing order, find the mid value
If the number of data points is even, find the average of the mid 2 data values
Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51
Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5
The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once
Mode = 34
The range is highest - lowest = 51 - 18 = 33
After we add 26, we get the following data set arranged
18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51
we can calculate the stats using the same technique as above
We get the following values
mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33
median = 34
mode = 34
range = 51-18 = 33
To find the decrease in mean and median subtract from the first set of values
Numbers and Operations KA 8th grade- correct answers only ty, and have a great day folks (7 pts)
Answers
Answer:c
Step-by-step explanation:
Answer:
it's c
Step-by-step explanation:
khan academy
What does MAT mean in education?
Answers
Answer: Master of arts in teaching
Step-by-step explanation:
it's for people that want to teach or are teaching already and want to continue teaching in the classroom.
X Y
-7 0
0 1
What is the slope of the linear function represented in
the table?
*-7
07/1
01/1
07
Answers
the formula for slope is rise over run, or y1-y2 divided by x1-x2. we can choose either number as y1 or y2 but it needs to stay consistent with x
so let’s plug in from your table.
0-1 divided by -7 -0
(you could also do 1-0 divided by 0-(-7))
-1/-7 which equals 1/7
so, your slope is 1/7
I hope this helps! :)
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
Answers
According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
Could somebody explain this to me please?
Answers
\(\dfrac{5^{10}}{5^{12}}=5^{10-12}=\huge\boxed{5^{-2}}\\\\\\a^m:a^n=a^{m-n}\)
Answer:
your are correct
Step-by-step explanation:
i don't fell like geting brainlyest so the person who answer this question first can have it
I need to write g(x) in terms of x. I completely forgot how to do that. Can someone please help me? Please be quick, I have class in a few minutes.
f(x)=3x+3
g(x)=f(x)-3
Answers
G(x)= -4
*i think this is correct*
This is for a friend pls help him
Answers
Answer:
4 inches wide
Step-by-step explanation:
We see that 984 ÷ 328 = 3, so the real Eiffel Tower is 3 times as tall as it is wide. So the scale model must also be 3 times as tall as it is wide. If the scale model is 12 inches tall, then it is 12 ÷ 3 = 4 inches wide.
984/12=82
328/82= 4
4 inches is the width
A line passes through (2, 8) and (4, 12). Which equation best represents the line?
1. y = 1/2x + 6
2. y = 2x + 7
3. y = 2x + 4
4. y = 1/2x + 10
Answers
X: (2 + 4) / 2 Equals: 3
Y: (8 + 12) / 2 Equals: 10
Then multiple 3 by 2 get 6, add four, you get 10 which is equal to Y
How do i plot this and where do I plot it
Answers
A graph of the linear equation y + 4 = 1/4(x - 5) in point-slope form is shown in the image attached below.
What is the point-slope form?Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:
y - y₁ = m(x - x₁)
Where:
m represents the slope.x and y are the points.From the information provided above, we can logically deduce that the given algebraic equation is written in point-slope form and as such, we would rewrite it in slope-intercept form by making y the subject of formula as follows;
y + 4 = 1/4(x - 5)
y = x/4 - 5/4 - 4
y = x/4 - 21/4
In this scenario, we would use an online graphing calculator to plot the linear equation in order to determine the solution as shown in the graph attached below.
Read more on equation here: brainly.com/question/19855458
#SPJ1
At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument?
20 students
61 students
244 students
285 students
and don't just give the answer, actually explain
Answers
Answer:
61 Students.
Step-by-step explanation:
So you need to find 20% of 305. You can do this by dividing by 5.
305 divided by 5 equals 61.
If you have questions, ask please :)
Answer:
61
Step-by-step explanation:
20 x 305 = 6,100
6,100/100 = 61
Select all ratios equivalent to 12:8 A. 15:10 B. 27:12 C. 14:2
Answers
Answer:
(12/8 = 1.5)
A) 15:10
What number is 40% of 86? Show your work.
21.5
344
34.4
215
Answers
To solve this problem you multiply 86 by 100 and then divide the total by 40 as follows: (86 x 100) / 40
Answer:
What is 40% of 86? Show your work.
= (40*86)/100
= 3440/100 = 34.4
C. 34.4Step-by-step explanation:
You're welcome.
write down the inequality shown on the number line.
Answers
Answer:
The inequality on the number line shown is {x:x<2}
The inequality shown on the number line is represented by the relation x<2.
As, the inequality on a number line, the notation includes the open circle at 2.
This means that the value of 2 itself is not included in the set of solutions.
In the notation "x < 2," the symbol "<" indicates "less than," and the number 2 is the upper bound of the inequality.
Since the inequality is strict, use an open circle to show that the point 2 is not part of the solution set.
Therefore, the inequality is "x < 2".
Learn more about Number Line here:
https://brainly.com/question/32029748
#SPJ3
HELP PLEASE I REALLY NEED HELP
Answers
First step is take it out of fractions and into decimals, they are easier to work with.
(0.5x1.125)x(2.66x3.33)x7.5
Then PEMDAS
Parentheses
0.625x-0.66x7.5
Then multiply
-0.41625x7.5
Answer
-3.121875
A study found that 9% of dog owners brush their dog’s teeth. Of 578 dog owners, about how many would be expected to brush their dog’s teeth? Explain.
A.
50; 9% ≈ 10% and 578 should be rounded down to 500; 10% of 500 = 50
B.
60; 9% ≈ 10% and 578 ≈ 600; 10% of 600 = 60
C.
70; 9% ≈ 10% and 578 ≈ 700; 10% of 700 = 70
is it A. B. or C.
Answers
Answer: A
Step-by-step explanation: 578*0.09=52.02~ is 50
Use the distributive property to remove the parentheses. Simplify your answer as much as possible. 2/3(5+9u)
Answers
Answer: 18u + 10/3
Step-by-step explanation: sorry if im wrong
Answer:
\(\boxed{\sf 6 u + \dfrac{10}{3}}\)
Explanation:
Given expression:
\(\sf \rightarrow \dfrac{2}{3} (5+9u)\)
distribute inside parenthesis
\(\sf \rightarrow \dfrac{2}{3} (5)+ \dfrac{2}{3} (9u)\)
multiply variables
\(\sf \rightarrow \dfrac{10}{3} + \dfrac{18}{3} u\)
simplify following
\(\sf \rightarrow 6 u + \dfrac{10}{3}\)
Find the next 4 terms of the following arithmetic sequence:
-7,-5.5,-4,-2.5
Answers
Answer:
-1, 0.5, 2, 3.5
Step-by-step explanation:
1.5 is added to the previous value for each value of the sequence. -2.5+1.5 is -1; -1+1.5 is 0.5, etc.
Answer:
-1, 0.5, 2, 3.5
Step-by-step explanation:
y=x+1.5
Hope this helps! :D
Someone help me with this ASAP!
Answers
Answer:
48.1 somewhere around 36 and 57
Step-by-step explanation:
Answer:
36-57
Step-by-step explanation:
18.50 x 2.6 = 48.10, which is between those two numbers