Elena, Lin, and Noah all found the area of Triangle Q to be 14 but they reasoned about it differently, as shown in the diagrams below. Pick one of the three students and explain their way of thinking and why his or her answer is correct. Make sure you identify which student you are explaining.

Answers

Answer 1

Answer:

yes it is

Step-by-step explanation:


Related Questions

A cloud drifted above an airplane that was flying at 5,300 meters per minute. In 22.5minutes, the cloud moved 7,920meters to the east at a constant velocity. What was the cloud's velocity?

Answers

Answer is 352 metres

Step-by-step explanation:-

The cloud is moving at a constant velocity. This means that we can find the velocity of the cloud by dividing the distance it moved by time:-

[tex]v = \frac{d}{t} [/tex]

Where "v" is velocity, "d" is distance and "t" is time.

The cloud moved 7920 metres in 22.5 minutes, so :-

[tex]v = \frac{7920 \: m}{22.5 \: min} [/tex]

[tex]v = 352 \: m/min[/tex]

Therefore, the cloud's velocity was 352 m/min.

✍️ By Benjemin ☺️


the function g is defined g (x) = x + 4 over 2x + 3

Answers

Answer:

(x+8)/(2x+11)

Step-by-step explanation:

g(x)=(x+4)/(2x+3)

g(x+4)=(x+4+4)/(2(x+4)+3) = (x+8)/(2x+8+3) =(x+8)/(2x+11)

PLEASE HELPPPPP MEEE

Answers

Answer:

-1  3/ 4

Step-by-step explanation:

This diagram shows a pre-image △ABC, and its image, ​△A′′B′′C′′​, after a series of transformations. Select from the drop-down menus to correctly complete the statements. △ABC is Choose... to become △A′B′C′. Then ​△A′B′C′​ is Choose... to become ​△A′′B′′C′′​ . Because the transformations are Choose... , the pre-image and image are Choose... . Triangles on a coordinate plane whose axes are labeled x and y. Triangle A B C has vertex A at 1 comma negative 1, vertex B at 4 comma negative 2, and vertex C at 7 comma 2. Triangle A prime B prime C prime has vertex A prime at negative 1 comma 1, vertex B prime at negative 4 comma 2, and vertex C prime at negative 7 comma negative 2. Triangle A double prime B double prime and C double prime has vertex A double prime at negative 1 comma negative 2, vertex B double prime at negative 4 comma negative 1, and vertex C double prime at negative 7 comma negative 5.

Answers

The answers that complete the statements of the series of transformations are;

- △ABC to △A′B′C′; because the △ABC has been rotated at angle of 180° about the origin.

- △A′B′C′ to △A′′B′′C′′; Because the △A′B′C′ has been shifted down by 3 units.

- All 3 transformations are rigid transformations

- All three transformations are congruent transformations.

The image showing triangles △ABC, ​△A′′B′′C′′​, and △A′B′C′ is missing and so I have attached it.

From the image attached, we see the following coordinates of the triangles;

Coordinates of △ABC; A(1, -1), B(4, -2), C(7, 2)

Coordinates of △A′B′C′; A'(-1, 1), B'(-4, 2), C'(-7, -2)

Coordinates of ​△A′′B′′C′′; A''(-1. -2), B''(-4, -1), C''(-7, -5)

Now, in transformation from △ABC to △A′B′C′, we see that the pattern of transformation is;  (x, y) → (−x ,−y). This pattern where coordinates of x and y are transformed to the negative part of them denotes that there has been a rotation at angle of 180° about the origin.

In transformation from △A′B′C′ to △A′′B′′C′′, we see that triangle shifted down because the y-coordinates have reduced by 3 units. Thus, we can say that the transformation was to shift △A′B′C′ down by 3 units.

In each of the transformations, we can tell that regardless of the position of the triangle, the distances AB, BC and AC remain the same. Thus, the transformation is rigid. The transformations are also congruent because all their corresponding sides are equal.

Read more at; https://brainly.com/question/11254677

If B is the midpoint of AC and AC = 40, what is the measure of BC?

BC =

Answers

Answer:

BC = 20

Step-by-step explanation:

Since B is the midpoint of AC , then

AB = BC = [tex]\frac{1}{2}[/tex] AC = [tex]\frac{1}{2}[/tex] × 40 = 20

list 10 output device and 10 input device

Answers

Answer:

10 Examples of Input devices:

1. Keyboard

2. Mouse

3. Light Pen

4. Optical/magnetic Scanner

5. Touch Screen

6. Microphone for voice as input

7. Track Ball

8. Joystick

9. Camera

10. Web cam (PC video camera)

10 Examples of Output Devices:

Monitor

Printer

Audio Speakers

Headphones

Projector

GPS

Sound Card

Video Card

Braille Reader

Plotter

In Livingston, the library is 9 miles south of the courthouse and 2 miles west of the community swimming pool. If a bird flew directly from the courthouse to the library, then from the library to the swimming pool, and then from the swimming pool back to the courthouse, what would be the total distance flown? If necessary, round to the nearest tenth.

Answers

Answer:

i think it's 18 but im not sure

Step-by-step explanation:

The difference of n and 7 is no more than 12. Find all possible values of n.

Answers

Answer:

-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

7-12= -5

7+12= 29

-5 ≤ n ≤ 29 or -5 ≤ n < 30 or -6< n ≤ 29 or -6 < n < 30

either one is acceptable. question was not clear but i did my best! :)

I agree with the person above

What is an equation of the line that passes through the point ( − 3 , − 1 ) and is perpendicular to the line x − 2 y =6

Answers

Answer: y = -2x - 7

Step-by-step explanation:

The equation for a perpenducular line has a slope that is the negative inverse of the reference line, in this case x - 2y = 6.

Let's put this equation into standard slope-intercept form, y = mx+b, where m is the slope and b the y-intercept (the value of y when x is 0).

x - 2y = 6

- 2y = 6 - x

y = (1/2) x -3

The slope is (1/2), so a perpendicular line will have a slope of -2.

y = -2x + b

We can find b by using the given point ((-3,-1), a known solution):

-1 = -2*(-3) + b

-1 = 6 + b

b = -7

The perpendicular equation is y = -2x - 7

y = -2x

BRAINLIEST!!! +15 POINTS!!! REAL ANSWERS ONLY!!!

Answers

Answer:

x= 10,-2 (so basically x=10)

Step-by-step explanation:

Input each answers

Answer:

x=10

Step-by-step explanation:

10-3=7

10-5=5

7*5=35

In a survey of 2,600 people who owned a certain type of​ car, 1,430 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?

Answers

Answer:

55%

Step-by-step explanation:

1430 divided by 2600 is 0.55

0.55 is 55%

Help me with this please NO LINKS !!!

Answers

Answer:
3

Step by step explanation:

So we need to use order of operations for this. The first thing you have to do is divide > PEMDAS (parentheses, exponents, multiply/divide, add/subtract)

4-8/2+3
(-8/2 is -4)
4-4+3 (simplify)
0+3

3 there’s your answer

10am/3 divided by -5a/6

Answers

The answer should be -4m, if wrong reply and tell me.

32 cubic cenimters it takes 8 cenimeters cube

Answers

Answer:

4

Step-by-step explanation:

32 divided by 8

A polynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. If the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

The graph of the function is positive on (–6, –2).
The graph of the function is negative on (negative infinity, 0).
The graph of the function is positive on (–2, 4).
The graph of the function is negative on (4, infinity).

Answers

Answer:

A. The graph of the function is positive on (–6, –2)

Step-by-step explanation:

The given function is an increasing function that intercepts the x- axis at -6, -2 and 4 and touches at 0.

It has minimum at negative infinity, maximum at positive infinity, local minimums between -2 and 0 and between 0 and 4, local maximum between -6 and -2.

Approximate shape is given in the attached.

Correct choice is the first one, the rest choices are all incorrect.

HELP

Calculate f(12) if f(n) = 20 + 15(n-1) *
Ed collects autographs. The graph shows the total number of autographs
that Ed has collected over time, in weeks. Find f(12), and explain what
it represents.
Number of autographs
1 n)
90
80
(5,80)
70
(465)
60
50 13,50)
40
30
(2,35)
20 . (1, 20)
10
n
0
1 2 3 4 5 6
Time (weeks)
f(12)= 200
f(12)=185
f(12)= 385
(12) = 420

Answers

Answer:

f(12) = 185

Step-by-step explanation:

Plug 12 into every n variable of the given equation:

20 + 15(n - 1)

20 + 15(12 - 1

20 + 15(11)

20 + 165 =

f(12) = 185

Hope this helps!

Answer:

Step-by-step explanation:

Calculate f(12) if f(n) = 20 + 15(n-1) *

Ed collects autographs. The graph shows the total number of autographs

that Ed has collected over time, in weeks. Find f(12), and explain what

it represents.

Number of autographs

1 n)

90

80

(5,80)

70

(465)

60

50 13,50)

40

30

(2,35)

20 . (1, 20)

10

n

0

1 2 3 4 5 6

Time (weeks)

f(12)= 200

f(12)=185

f(12)= 385

(12) = 420

Someone please help:)))

Answers

Answer:

y = x + 5

Step-by-step explanation:

The y values are 5 more than the x values.

help me plsssssssssssssssssssssssssssssssss

Answers

The answer is C

The best answer is C

Find the equation of the line through the point ( 3 , − 7 ) that is perpendicular to the line with equation y = x − 12 .

Answers

Answer:  y = -x - 4

Step-by-step explanation:

A perpendicular line has a slope that is the negative inverse of the reference line, which is y = x-12.  The slope here is 1, so the negative inverse would be -1/1, or -1.  The perpendicular line would therefore be:

y = -1x + b

We can find b by using the given point (3,-7) as a solution:

y = -1x + b

-7 = -1*3 + b

b = - 4

The equation is therefore   y = -x - 4

How do I solve this equation... if a=5 b=7 and c=12 What is: a(b + c) x 2?

Answers

Answer:

190 is the answer of the equation.

Step-by-step explanation:

a(b + c) × 2

Now putting the values of a,b and c.

5(7+12)×2

= 5(19)×2

= 95×2

= 190

A doctor has 12000 paitents .
4560 of these paintents are male .
What percentages of these paintents are female ?

Answers

Answer:

38

Step-by-step explanation:

Equation for percentage change is

Difference/total x 100

so 4560/12000x100=38%

Answer: i’m sure it’s 62%

Step-by-step explanation:

1. Solve for x. Show each step of the solution.
2.5(4- x) + 12 = 21 – 4[ 2.5x + 7)

Answers

Answer:

x=-58/15

Step-by-step explanation:

x=58/15 is the answer i hope this helped you out man!

y=4x-36
find the zero of each function by graphing

Answers

Is it 0? I guess you can check. I just did it by paper

Answer: X = 9

Step-by-step explanation:

First insert the function into a graphing calculator.

We are trying to find the x intercepts, we substitute y=0.

With a graphing calculator look at where the line intercepts the x axis, (9,0) , and we find that x=9.

helpppppppppppppppppppppppp

Answers

Answer:

The inequality is x/5 < 20, and 100 is in the box.

Step-by-step explanation:

x = the amount she spends in June.

So, since she spends an equal amount five times, the amount she spends each time is x/5.

She wants this to be less than 20.

So, x/5 < 20.

Solving for x by multiplying both sides of the equation by yields

x < 5 * 20

x < 100, so that 100 goes into the box.

quick brainliest asap!! sin^-1 (1.1976) SHOW YOUR WORK so I can see if it makes sense!!

Answers

Answer:

no solutions

Step-by-step explanation:

We want to find [tex]\theta[/tex] such that [tex]\theta=\sin^{-1}(1.1976)[/tex].

We can take the sine of both sides of the equation to get[tex]\sin(theta)=\sin(\sin^{-1}(1.1976))=1.1976[/tex].

We know that the range of the sine function goes from -1 to 1 inclusive, so there is no value [tex]\theta[/tex] such that [tex]\sin{\theta}>1[/tex].

Therefore, the answer is [tex]\boxed{no~solutions}[/tex] and we're done!

plz help i’ll give brainliest

Answers

Answer:

is equivalent

Step-by-step explanation:

Answer:

the first one

Step-by-step explanation:

answer plssasssssss guys

Answers

Answer:

1) Divide the numerator by the denominator to get 0.6

2) Divide the numerator by the denominator to get 0.7

3) Divide the numerator by the denominator to get 0.25

4) Place 55 over 100, since this number is in the hundredths place, and then divide it (55 ÷ 100). Your answer is 11/20 .

5) Place 6 over 10, since this number is in the tenths place, and then divide it

(6 ÷ 10 = 3/5). Next multiply the whole number (10) by the denominator (5) and then add the numerator (3) to get 53. You now have 53/5 which is the improper form, or 10 3/5 which is the mixed number form.

6) Place 856 over 1,000 , since this is in the thousandths place, and then divide it

(856 ÷ 1,000). Your answer is 107/125 .

7) 0.05, 0.5, 4/5

8) 1.3, 1 1/2, 1.85

Can't see the rest of the page, sorry. Either way, hope this helped :)

Find the unknown side of the triangle below (round to the nearest tenth).


A. 27.5m

B. 38.0m

C. 17.4m

D. 18.6m

Answers

Answer: A Because 29.9 but it was probally rounded off.

Step-by-step explanation:

Use the Pythagorean theorem:

x = sqrt(15^2 + 23^2)

x = 27.5m

Answer: A. 27.5m

Perform the indicated operation.

Answers

Answer:

[tex]4 {x}^{3} + 2 {x}^{2} - 8x - 4[/tex]

Step-by-step explanation:

it's simple, just multiply

f.g(x)=(x^2-2)(4x+2)=4x^3+2x^2-8x-4

Step-by-step explanation:

Hi there!

f(x) = x²-2

g(x) = 4x+2

Then;

f(x).g(x) = (x²-2)*(4x+2)

= x²(4x+2) -2 (4x+2)

= 4x³ + 2x² - 8x - 4

Therefore, the answer is f(x).g(x)= 4x³ + 2x² - 8x - 4.

Hope it helps!

pls someone help me! im giving brainlest!!!!!!

Answers

Answer:

True

Step-by-step explanation:

4x=4x does have an infinite amount of solutions, so true
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