Answers
Answer:
m = -2
Step-by-step explanation:
To get the slope of the line, we are going to use the 2-points slope equation form
That will be;
m = (y2-y1)/(x2-x1)
(x1,y1) = (-5,11)
(x2,y2) = (8,-15)
m = (-15-11)/(8-(-5)) = -26/13 = -2
The possible mistake she might have made is placing the x-values difference over the y and her formula will look like;
m = (x2-x1)/(y2-y1)
It is an error of switching the numerator for the denominator
Related Questions
If M (4.2) is the midpoint of AB and A (-5, -3), find the coordinates of B.
Answers
Given:
M(4,2) is the midpoint of AB and A(-5, -3).
To find:
The coordinates of B.
Solution:
Let the coordinates of point B are (a,b).
Midpoint formula:
[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
M(4,2) is the midpoint of AB and A(-5, -3).
[tex]M=\left(\dfrac{-5+a}{2},\dfrac{-3+b}{2}\right)[/tex]
[tex](4,2)=\left(\dfrac{-5+a}{2},\dfrac{-3+b}{2}\right)[/tex]
On comparing both sides, we get
[tex]4=\dfrac{-5+a}{2}[/tex]
[tex]8=-5+a[/tex]
[tex]8+5=a[/tex]
[tex]13=a[/tex]
And,
[tex]2=\dfrac{-3+b}{2}[/tex]
[tex]4=-3+b[/tex]
[tex]4+3=b[/tex]
[tex]7=b[/tex]
Therefore, the coordinates of point B are (13,7).
The time T takes to buy a fuel at a petrol station varies directly as the number of vehicles V on a quare and inversely as the number of pumps P available in the station. In a station with pumps, it took 10minutes to uel 20 vehicles. Find 1. The relationsip between T, P and V. 2. The time it will take to fuel 50 vehicles in the station with 2 pumps. 3. The number of pumps required to fuel 40 vehicles in 20 minutes.
Answers
Answer:
The time T takes to buy a fuel at a petrol station varies directly as the number of vehicles V on a quare and inversely as the number of pumps P available in the station. In a station with pumps, it took 10minutes to uel 20 vehicles. Find 1. The relationsip between T, P and V. 2. The time it will take to fuel 50 vehicles in the station with 2 pumps. 3. The number of pumps required to fuel 40 vehicles in 20 minutes.
find x using the pythagorean theorem
Answers
Because side x had two intersecting lines that create 90° angles, we can assume that if we cut off the rectangular part of the shape, the other lines would be the same. Now, we are left with the triangular shape. We know that the hypotenuse is 16, but because we got rid of the rectangular part of the shape that had 5 on that side, we have to subtract 18 by 5 to make sure the shape is correct. Now, that side is 13.
Now we solve: 13^2 +x^2=16^2.
169+x^2=256
-169 -169
———————-
X^2=87
Now you square root both sides by 2, getting X= 9.33
30 is 85 percent of what number?
Answers
Divide 30 by 85%
30/0.85 = 35.29411765
Answer:
35 5/17 or 35.29411765
Step-by-step explanation:
30 times 100 divided by 85
WILL GIVE BRAINLIEST!!!!!!!
2(x+1)^2=12
Answers
Answer:
Step-by-step explanation:
Hey can anyone pls answer dis math problem!!
Answers
Answer:
Step-by-step explanation:
you have to multiply the bracets by the factor
then add +1 to both sides
Equation :
[tex]y=\frac{-3}{4}x-2[/tex]
yes, it's the same as b
graph the linear equation y = -6x - 5
Answers
this was my answer from demos
Debra made $228 for 12 hours of work.
At the same rate, how many hours would she have to work to make $323?
Answers
Answer:
17 hours
Step-by-step explanation:
Set up a proportion: [tex]\frac{12}{228} = \frac{x}{323}[/tex] Cross multiply, then divide: 12 × 323 = 3876, 3876 ÷ 228 = 17So, she would have to work 17 hours to make $323.I hope this helps!
Help!!!! What are the unknown angles?
Answers
Answer:
1: 52 for x
2. 96 for x
3. 58 for x
4. 71 for both of the 2 angles, 71 each
Step-by-step explanation:
all triangles add up to 180*, easy to reverse the math
uwu
One morning, the thermometer read -14 fahrenheit. By noon, the temperature had risen 12 degrees. What was the temperature at noon?
Answers
Answer:
-2 degrees
Step-by-step explanation:
-14 + 12 = -2
PLEASE HELP IM BEING TIMED I WILL MARK BRAINLY
Which inference is reasonable based on the data in the scatter plot?
A If Person A goes to school for 16 years and Person B goes to school for 12 years, Person B can expect to make
more money than Person A.
* If Person B does not go to college and Person A goes to college, Person B will earn more money than Person A.
© If Person A goes to school twice as long as Person B, Person A can expect to make twice as much as Person B.
D
If Person B goes to college and Person A does not go to college, Person B is likely to earn more money than
Person A.
Answers
We don't have the scatter plot
b/4 = 3.2 help me plz
Answers
Answer:
Step-by-step explanation:
B/4=3.2
B=12.8
7. What is the area of the trapezoid shown? 4 cm 10 cm 8 cm W 10 cm
Answers
Answer:
88 ... .... . ... . . . ... ............... ....
[tex] \frac{4}{5 } + \frac{3}{20} = [/tex]
Answers
Hope this helps
Answer:
Step-by-step explanation:
[tex]\frac{4}{5}+\frac{3}{20}\\ \\ \frac{4}{5}\left(\frac{4}{4}\right)+\frac{3}{20}\\ \\ \frac{16+3}{20}\\ \\ \frac{19}{20}[/tex]
The student council was preparing for the wellness sale. The members divided each type of the donated items equally onto plates. Each plate contained only 1 type of item and every plate had exactly the same number of items. There were no leftovers. What is the greatest number of items that could have been placed on each plate? Wellness Sale Donations Celery 63 Cucumbers 14 Carrots 35 The greatest number of items that each plate could have is nothing items. (Type a whole number.)
Answers
Answer:
The greatest number of items on each plate is 7
Step-by-step explanation:
Given
[tex]Celery = 63[/tex]
[tex]Cucumber = 14[/tex]
[tex]Carrot = 35[/tex]
Required
Determine the greatest number of items on each plate
To do this, we simply calculate the GCF of 63, 14 and 35
[tex]63 =3 * 3 * 7[/tex]
[tex]14 = 2 * 7[/tex]
[tex]35 = 5* 7[/tex]
The GCF is:
[tex]GCF = 7[/tex]
Hence:
The greatest number of items on each plate is 7
can you help me please
Answers
This question is much easier than the last one. As we can see the yellow are is the same as the bottom area with the same shape. And the area of the 2 hemispheres adds together to a full circle area: 3^2*pi=9pi
Area of yellow region=(36-9pi)/2=18-9/2pi=3.862 and round this to the nearest tenth getting 3.9.
The resale value of a certain car when purchased new is $20,000. The car is expected to lose 10% of its value each year.
Which graph shows the predicted value of the car over time?
HELPPPP I’M GIVING 18 points ASAP
The graph that shows the predicted value of the car over time is the
a. Red graph, 1
b. Blue graph, g
c. Green graph, h
d. Orange graph, k
This makes sense because it’s y-intercept is at
a. 10,000
b. 20,000
And it
a. Increases
b. Decreases
Answers
Answer:
The red graph. y intercept is at 20k and is decreasing
A right triangle has side lengths,8,15,17 and as shown below.
Use these lengths to find, tan b, cos b, sin b
Answers
Remember the chant "soh cah toa"
sine = opposite ÷ hypotheneus
cosine = adjacent ÷ hypotheneus
tangent = opposite ÷ adjacent
remember that hypotheneus is the slanty side, opposite and adjacent side is in COMPARISON with the angle you want to find.
In this case, tan B would be 15/8
sinB = 15/17
cosB = 8/17
All rational numbers are whole numbers? True or false
Answers
15•(13 - 7) ÷ (8 - 5) Simplify
Answers
Answer:
30
Step-by-step explanation:
15•(13-7)÷(8-5)
15•(6)÷(3)
90÷3
30
Answer:
30
Step-by-step explanation:
15 x 6 / 3 =
90 / 3 =
30
Hope that helps!
show your work plzzz i will give you the points
Answers
Answer:
I do not see a problem.
Step-by-step explanation:
Thanks for the points.
Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 12 – (–9)
Answers
Answer:
21
Step-by-step explanation:
12 - (-9)
Open The bracket :
Recall: - * - = +
Hence,
12 + 9 = 21
5. I NEED HELP ASAP!! PLEASE PUT AND ANSWER AND STEP BY STEP EQUATION!! IF YOU DON'T KNOW THE ANSWER DON'T PUT ANYTHING!!
Write a rule for the linear function in the table.
X F(x)
0 3
3 15
6 27
9 39
A. f (x) = 1/4x + 3
B. f (x) = 4x + 3
C. f (x) = x + 3
D. f (x) = -4x - 3
Answers
Answer:
i can't find the answer
Step-by-step explanation:
Marcus borrowed 9000 from his bank to buy a car. The bank charged him a simple interest rate of 1.25%. By the time he paid back the money he had pad a total of 9281.25. How long did it take Marcus to pay back the money?
Answers
Answer:
2.5 years
Step-by-step explanation:
Given data
P=9000
r= 1.25%
A= 9281.25
The simple interest expression is given as
A=P(1+rt)
substitute
9281.25= 9000(1+0.0125*t)
9281.25=9000+112.5t
collect like terms
9281.25-9000=112.5t
281.25= 112.5t
t= 281.25/112.5
t= 2.5
Hence the time is 2.5 years
Which linear function represents the table
PLEASE HELP ILL GIVE BRAINLIEST
Answers
Answer:
The answer is D.
Step-by-step explanation:
Hope this helps
The answer is the most reasonable and I learned this as well.
In parallelogram BCDE if m EBC=45 find m DEB
Answers
Answer:
x = 135
Step-by-step explanation:
parallelograms have supplementary angles
180 - 45 = 135
Answer:
x = 135 degrees
Step-by-step explanation:
Because this is a parallelogram, the opposite sides are parallel
45 and x = 180 because they are corresponding congruent angles
180-45=135
7/17% of a quantity is equal to what fraction of the quantity?
Answers
Answer:
41/10,000
Step-by-step explanation:
7/17% = 0.41% = 0.0041
41/10,000
The given quantity 7/17% is a whole fraction of the number 41.17.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
What is the fraction?Fraction is defined as the number of compositions that constitutes the Whole.
here,
Let the x be the required number,
x = 7 / 17%
x = 7/ 0.17
x = 41.17
Thus, the given quantity 7/17% is a whole fraction of the number 41.17.
Learn more about percentages here:
brainly.com/question/13450942
#SPJ1
THIS IS GEOMETRY I ONLY ahve 10 MINUTES PLEASE HELP THANK U
Answers
Answer:
i need a photo or an equation TvT
Step-by-step explanation:
TvT TvT TvT
!!!HELP ASAP!!
Sam is installing a walkway around a rectangular flower patch in his garden. The flower patch is 12 feet long and 6 feet wide. The width of the
walkway is x feet.
by the flower patch and walkway by multiplying the functions modeling the new
Sam created function A to represent the total area taken
total length and width.
As) = 4:2 + 36.1 + 72
What does 412 + 365 represent in this function?
ОА
the area of the walkway along the length of the flower patch
the total area of the walkway
OB.
Oc. the total area of the flower patch
OD.
the area of the walkway along the width of the flower patch
Reset
Next
s reserved.
Answers
Answer:
A
Step-by-step explanation:
The thing that is represented is the area of the walkway along the length of the flower patch. Therefore, option A is the correct answer.
Given that, Sam created function A to represent the total area taken total length and width A= 4:2 + 36.1 + 72
How to illustrate the function?From the information given, Sam created function A to represent the total area taken up by the flower patch and walkway by multiplying the functions modelling the new total length and width.
Therefore, option A is the correct answer.
Learn more about functions on:
brainly.com/question/25638609
#SPJ2
Two cars are 50 miles apart and driving towards each other. One car is driving at a speed of 30 miles per hour and the other car is driving at a speed of 45 miles per hour. How long does it take for the cars to pass each other
Answers
Answer:
40 minutes
Step-by-step explanation:
30x+45x=50
75x=50
x=.6667 hours or 40 minutes
check:
30 mph for 40 minutes=20 miles
45 mph for 40 minutes=30 miles
total=50 miles
