Your friend calculates the distance between points​ Q(1,5) and​ R(3,8), as shown below. What is his​ error?

Answers

Answer 1

The distance between two points is the number of units between them.

The distance between Q and R is 3.61 units

It is impossible to determine your friend's error, because the steps are not given in the question. So, I will calculate the distance between Q and R, instead.

The distance (d) between two points is:

[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]

So, the distance QR is:

[tex]QR = \sqrt{(1 - 3)^2 + (5 - 8)^2}[/tex]

[tex]QR = \sqrt{(- 2)^2 + (- 3)^2}[/tex]

Evaluate exponents

[tex]QR = \sqrt{4 +9}[/tex]

[tex]QR = \sqrt{13}[/tex]

Take square root of 13

[tex]QR = 3.61[/tex]

Hence, the distance between Q and R is 3.61 units

Read more about distance at:

https://brainly.com/question/16310813


Related Questions

Emily made fruit punch for a party. She used 2/6 of a cup of grape juice. 3/6 of a cup of strawberry juice. and 4/6 of a cup of pop. How much fruit punch did she make?​

Answers

Answer:

She made 1 1/2 cup of fruit punch.

Step-by-step explanation:

2/6 + 3/6 + 4/6 = 9/6

= 1 3/6 = 1 1/2

she made 9 /18 if u need it simplified it is 1/2

Find the coordinates of Cafter a 90° clockwise rotation
around the origin.
(0, -6)
6
(-6,0)
0
(-6, -6)
(6, 6)

Answers

Answer:

(0,-6)

Step-by-step explanation:here the answer

Is this graph a function?
1. This is a function.
2. This is not a function.
3. This cannot be determined from this graph.

Answers

Answer:

this is a function

Step-by-step explanation:

N
2
1
1
3
4
Name the
L corresponding
angle with
angle 8.
M.
7
56
8
B. angle 5
A. angle 4
D. angle 7
c. angle 6

Answers

Answer:

angle 4 is the corresponding angle with angle 8

Step-by-step explanation:

Please mark as brainliest

For BRAINILY please help I need to pass this class

Answers

Answer:

p= 40

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees

p+100+40 =180

p+140=180

p = 180-140

p= 40

Answer:

The answer is 40°. W and X are congruent to each other.

Define:

Congruent: Triangles that have both the same shape and the same size.

Straight line= 180degrees

Scalene triangle: A triangle that has no equal sides.

Isosceles Triangle: a triangle that has two sides the same length.

Equilateral triangle: A triangles all three sides are congruent.

Hope this helps!

Which division problem does the number line below best illustrate? ​

Answers

Answer: A

Step-by-step explanation:

You are making a scale model of a sports field. The
actual field is a rectangle with a length of 315 ft and a
width of 300 ft. Your scale model is 15 in. wide. What is
its length in inches?

Answers

Answer:

15.75 inches

Step-by-step explanation:

You can use a ratio to find your answer by cross multiplying.

300 ft        315 ft

----------  =  ----------

 15 in           x  in

Cross multiplying would give you:

300x = 15 x 315

300x = 4725

x = 4725 / 300

x = 15.75 inches

For brainily please help :/

Answers

Answer:

AB

Step-by-step explanation:

They are the shortest combined side

Jamel plans to take a cruise that leaves out of New Orleans and needs to rent a car to see the sights as well as travel to and from the airport. The cost of renting a car is S50 plus $0.75 per mile for every mile over 40 miles driven. If Jamel's total cost for renting the car is $122.75, use the composition of functions to find how many miles Jamel drove the car on his vacation?

Answers

Jamel drove 137 miles on his vacation. If you take $122.75 and subtract 50 than it is it is 72.75. The you divide 0.75 to the 72.75 and you get 97. You add the 40 miles free of charge to the 97 to get 137 miles.

guys pls help me!!!!!

Answers

13c - 15 = 180
+ 15 + 15
13c/13 = 195/13
C = 15
Hope this helped

Answer:

c = 15

Step-by-step explanation:

(7c - 7) + (6c - 8) = 180

Simplify

13c -15 = 180

13c = 195

c = 15

Part 1 state the domain and range of the given relation.

Part 2 is the relation a function

{(-1, 2),(1, 2),(3, 2), (6, 2)}

Please help

Answers

A relation is any set of ordered pairs, which can be thought of as (input, output).

A function is a relation in which NO two ordered pairs have the same first component and different second components.

The set of first components (x-coordinates) in the ordered pairs is the DOMAIN of the relation.

The set of second components (y-coordinates) is the RANGE of the relation.

Part 1:
Domain: {-1, 1, 3, 6}
Range: {2, 2, 2, 2}

Part 2:
To determine whether the given relation represents a function, look at the given relation and ask yourself, “Does every first element (or input) correspond with EXACTLY ONE second element (or output)?”

Remember that a function can only take on 1 output for each input.

It helps to plot the points on the graph and perform the Vertical Line Test (VLT):

The Vertical Line Test allows us to know whether or not a graph is actually a function. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.

As you can see in the attached screenshot, every vertical line drawn only has 1 point in it. This means that each x-value corresponds to exactly one y-value. The given relation passed the VLT. Therefore, the relation is a function.


Please mark my answers as the Brainliest if you find my explanation helpful :)

MAY SOMEONE PLZ HELP ME ON THESE :(((

Answers

Answer:

12) Domain: (-4, 1] Range: [-4, 0]

13) Domain: (-infinity, 1] Range: [0, infinity)

Function decreases from x = negative infinity to 0. (I'm assuming this is what the question is asking for!)

Minimum of y = 0 at x = 0


An image can translate horizontally and vertically at the same time.
O True
O False

Answers

Answer:

False

Step-by-step explanation:

I think this is correct.

Answer:

True

Step-by-step explanation:

Diagonal is the process of moving an image along not only the x-axis but also along the y-axis at the same time.

Need the answer please 20 points!!! Yes m

Answers

Step-by-step explanation:

I will definitely give you answer if you follow me please I will give you your answer if you follow me please

Answer:

I'm pretty sure it's A

Step-by-step explanation:

if its not I'm sorry :)

For brainily please help

Answers

i think z is 54 bc all the triangles angles should add up to 180 so you subtract 72 from 180 and since the lengths of the triangle are the same for the two sides the angles should be the same too so divide whatever you got from 180-72 which is 108 and divide it by two which is 54 hope it helped z=54

solve the inequality. 1/4w ≥ 4​

Answers

the inequality would be 16

Answer:

16

Step-by-step explanation:

When 3 times a number is added to the square of the number, the result is 40. Determine the number

Answers

Answer:

5 or -8

Step-by-step explanation:

[tex](3 \times x) + x {}^{2} = 40[/tex]

[tex]3x + {x}^{2} = 40[/tex]

[tex] {x}^{2} + 3x - 40 = 0[/tex]

using factorization method

[tex]( {x}^{2} + 8x) ( - 5x - 40) = 0[/tex]

[tex]x(x + 8) - 5(x + 8) = 0[/tex]

[tex](x - 5)(x + 8) = 0[/tex]

[tex]x - 5 = 0[/tex]

or

[tex]x + 8 = 0[/tex]

[tex]x = 5[/tex]

or

[tex]x = - 8[/tex]

1. 5 + x = -2



2. 8m = 48

Solve this problems giving brainliest


Answers

Answer: 1. x=-7 2. m=6

Step-by-step explanation:

1. 5 + x=-2

to get the x by itself, you need to subtract 5 from both sides

5-5 +x = -2-5

there for 0 + x = -7 which means x=-7

2. to get 8m to just m, you need to divide 8m by 8. and what you do to one side of the equation, you need to do to the other. therefore 8m/8=48/8 and 48/8=6. therefore m=6

Answer:

1. 5+x=-2

x=-2-5

x= -7

2. 8m=48

m= 48/8

m= 6

Please Mark BRAINLIEST as promised!

PLS HELP WILL MARK BRAINLIEST!
A horse travels at about 65 kph. At this rate, how far can it travel in 20 minutes

Answers

Answer:  Approximately 21.667 km

This value as a fraction is 65/3, but I think the decimal form is probably more practical in real world settings.

======================================================

Work Shown:

20 min = 1/3 of an hour, since 20/60 = 1/3. In other words, there are three chunks of 20 minutes that make up a full hour.

distance = rate*time

distance = (65 kph)*(1/3 hr)

distance = (65*1/3) km

distance = (65/3) km

distance = 21.667 km which is approximate

Answer:

Distance rate=Rate x Time

Distance= (75 km/h) 20 mins

Convert 20 mins in hours= 1/3 h

Distance= (75 km/h) (1/3 h)= 25 km.....

listen ok

Step-by-step explanation:

hope it help

Sandra drove 117 miles in an hour and 30 minutes to visit her son at college, without stopping. If the speed limit is 60 mph, explain why she should or should not get a speeding ticket. Make sure to include mathematical computations in your answer.

Answers

Answer:

She should get a speeding ticket. The speed limit is 60mph and her speed was 78 mph, 18 miles over the speed limit.

Step-by-step explanation:

She drove 117 miles in 90 minutes.

117/90 = 1.3 miles per minute

1.3 miles x 60 minutes = 78 mph

ANSWER FOR 20POINTS PLEASE

Answers

Answer:

[tex] | {7}^{2} - 8| = |49 - 8 = |41| = 41 [/tex]

please give the answers, thank you! :D​

Answers

Answer:

1.

a. False

2.

a.True

Step-by-step explanation:

What is the mode?
-2 -6 -7 -4 -7 -6 -6 -2

Answers

Answer:

-6

Step-by-step explanation:

Mode in math means the number that is the most frequent number found in a data set, and in this data set shown, -6 comes the most frequently.

Answer:

-6

Step-by-step explanation:

the larger of two numbers is nine more then four times the smaller number the sum of the two numbers is sixty-nine find the tow numbers

Answers

Answer:

i do not know

Step-by-step explanation:

Solve for the value of v.
(56+6)
(40+3)

Answers

Answer:

2666 if you multiply the sum of the parenthesis

but if you add them then the answer is 105

Step-by-step explanation:

56+6=62

40+3=43

62•43= 2666

I kinda need help and an explanation Cant understand

Answers

Answer:

look in explanation

Step-by-step explanation:

Seeing as most of your answers are wrong, I'll start from the beginning.

a rational number is a number that can be expressed as a fraction.

an integer is a  whole number.

an irrational number is a number that cannot be expressed as a fraction.

an integer is also always a rational number.

Using this, we can sort the values.

-77/11 can be simplified as -7, which is an integer.

the square root of 144 is 12, which is an integer.

0.25 is a decimal that can be expressed as a fraction, which makes it a rational number that is not an integer.

the square root of 20 is a value that cannot be expressed as a fraction, which makes it irrational.

17/4 is a fraction that is not a whole number, which makes it a rational number but not an integer.

finally, 2*the square root of 10 is irrational.

I want need help because I’m having trouble on this question Evaluate: 2-4 =

Answers

The answer is D. 1/16
Hope this help :D

Find the measure of each missing angle

I’ll give BRAINLEST!!

Answers

Answer:

angle 4 = 115°[vertically opposite angles]

angle 2+ angle 4=180°[linear pair]

angle 2+ 115 = 180°

angle 2 = 180°-115°

angle 2=65°

angle1+angle2+80°=180°[sum of all angles is 180°]

angle1+65°+80°=180°

angle 1 + 140° = 180°

angle 1=180°-140°

angle1 =40°

angle2= angle5[vertically opposite angles]

angle7+angle5+61°+90°=360°[sum of all angles of quadrilateral is 360°]

angle7+ 65°+ 61° +90°=360°

angle7+ 211°=360°

angle7=360°-211°

angle7=149°

angle7+angle6=180°[linear equation]

149°+angle6=180°

angle6=180°-149°

angle6=31°

angle4+angle6+angle3= 180°[by sum of all angles is 180°]

115°+31+angle3=180°

146°+angle3=180°

angle3=180°-149°

anble3=41°

What graph shows a proportional relationship between x and y?

Answers

I believe it would have to be the second graph as a proportional relationship has to make a straight line that passes through the origin

Answer:

second graph

Step-by-step explanation:

the line running at same rate

Is the square of an irrational number always irrational? Explain​

Answers

Answer:NOO

Step-by-step explanation:

For example, √3 is irrational, but (√3)2 = 3, which is rational.

HOPE IT HELP

Answer:

No.

Explanation:

For example, √3 is irrational, but (√3)2 = 3, which is rational.

Hope this helps....

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