Lydia is playing Galaxy 8RX. After three misses, the game is over. Last week, Lydia kept track of how long her games lasted. Hse msde a line plot of her data. Lydia said,"My best time is 2 3/4 minutes longer than my worst time because 4 1/4-1 1/2=2 3/4. Is subtraction the correct operation to compare Lydia's best and worst times?Explain. Are Lydia's calculations accurate?Show how you know. In the line plot, what do the numbers Lydia subtracted represent? Does Lydia's conclusion make sense? How did you decide? If not, what can you do to improve her reasoning? ​

Answers

Answer 1

Answer:

Yes ; Yes ; Yes it makes sense

Step-by-step explanation:

1.) Lydia used subtraction operator to define and establish a relationship between her best and worst game times ; Hence we could conclude that Lydia is correct as this gives the range between both times.

From the numbers given in the question as their is no graph attached :

4 1/4 - 1 1/2

17/4 - 3/2

(17 - 6) / 4

11 /4

= 2 3/4

The subtracted numbers represent the duration of each of the three times game was played ; Hence the numbers represents the game times.

Yes ; Her conclusion makes sense ; as she was able to deduce the range between her best and worst game time


Related Questions

What is the perimeter of the composite figure?

A. 119.5 cm

B. 85 cm

C. 107.5 cm

D. 97 cm

Answers

Perimeter of Rectangle: 17 + 17 + 22 + 22
To find missing side of triangle: 19^2 + (22 - 10)^2 = c^2
361 + 144 = c^2
505 = c^2
sqrt of 505 = 22.5

Add everything together and you get A! Hope this helped!

Your school's FFA chapter is selling candy bars to raise money. A regular sized chocolate bar (x) sell for $2 and King sized chocolate bar (y) sell for $3. They want to make more than $35.


They can sell at most 15 candy bars


Select all points that are solutions to this system of inequalities


A) (2,12)

B) (10,5)

C) (6,8)

D) (14,2)

E) (8,4)

F) (12,12)

G) (4,10

Answers

B, c, f hope this helps

tan(A—B)=tanA—tanB/1+tanAtanB​

Answers

Answer:

tan (A−B)=tan(A)−tan(B)/1+tan(A)tan(B)

tan(A−B)=tan(A)−tan(B)/1+tan(A)tan(B)

1+tan(A)tan(B) To prove this, we should know that:

1+tan(A)tan(B) To prove this, we should know that:sin(A−B)=sin(A)cos(B)−cos(A)sin(B)

1+tan(A)tan(B) To prove this, we should know that:sin(A−B)=sin(A)cos(B)−cos(A)sin(B)AND

1+tan(A)tan(B) To prove this, we should know that:sin(A−B)=sin(A)cos(B)−cos(A)sin(B)ANDcos(A−B)=cos(A)cos(B)+sin(A)sin(B)

1+tan(A)tan(B) To prove this, we should know that:sin(A−B)=sin(A)cos(B)−cos(A)sin(B)ANDcos(A−B)=cos(A)cos(B)+sin(A)sin(B)We start with:

1+tan(A)tan(B) To prove this, we should know that:sin(A−B)=sin(A)cos(B)−cos(A)sin(B)ANDcos(A−B)=cos(A)cos(B)+sin(A)sin(B)We start with:tan(A−B)=sin(A−B)/cos(A−B)

cos(A−B)tan(A−B)=sin(A)/cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(A)=0 and cos(B)=0cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(A)=0 and cos(B)=0cos(A)≠0 and cos(B)≠0

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(A)=0 and cos(B)=0cos(A)≠0 and cos(B)≠0The question on this page is asking for specific formula, which comes from Case 4, so I will only solve Case 4 here.

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(A)=0 and cos(B)=0cos(A)≠0 and cos(B)≠0The question on this page is asking for specific formula, which comes from Case 4, so I will only solve Case 4 here.Dividing numerator and denominator in (1) by cos(A)cos(B) we get:

cos(B)−cos(A)sin(B)cos(A)cos(B)+sin(A)sin(B)(1)We would want to divide both numerator and denominator by cos(A)cos(B)but there are 4 cases,cos(A)=0 and cos(B)≠0cos(A)≠0 and cos(B)=0cos(A)=0 and cos(B)=0cos(A)≠0 and cos(B)≠0The question on this page is asking for specific formula, which comes from Case 4, so I will only solve Case 4 here.Dividing numerator and denominator in (1) by cos(A)cos(B) we get:tan(A−B)=sin(A)/cos(B)−cos(A)/sin(B)/;2cosA)cos(B)/cos(A)cos(B)+sin(A)sin(B)/cos(A)cos(B)

cos(A)cos(B)tan(A−B)=sin(A)cos(B)/cos(A)cos(B)−cos(A)sin(B)cos/(A)cos(B)cos/(A)cos(B)co(A)cos(B)+sin(A)sin(B)/cos(A)cos(B)

cos(A)cos(B)tan(A−B)=sin(A)/cos(A)−sin(B)cos(B)1+sin(A)cos(A)sin(B)cos(B)

cos(A)−sin(B)cos(B)1+sin(A)cos(A)sin(B)cos(B) tan(A−B)=tan(A)−tan(B)/1+tan(A)tan(B)

Step-by-step explanation:

Hope it is helpful....

Volume of a cylinder the radius Is 5ft the height is 10ft

Answers

The volume of the cylinder is 785.398

Answer:

V = 785.7ft³

Step-by-step explanation:

V = π r² h

V = 22/7 (5) 10

V = 22/7 × 25 ×10

V = 22/7 × 250

V = 22 × 250 ÷ 7

V = 550 ÷ 7

V = 785.7ft³ answer

Answer: The volume of the cylinder is 785.7ft³

What is the polar form of 7 StartRoot 3 EndRoot minus 7 i?

Answers

In polar form the expression is ( 14 , 30 )

How the rectangular form is converted to Polar form ?

To convert the expression x +iy  to polar form ( r , [tex]\rm \theta[/tex] ) , the standard equations used are

r = [tex]\rm \sqrt {x^2 + y^2}[/tex]

tan [tex]\rm \theta[/tex] = y/x

The given expression is

7 √3 - 7i

x = 7 √3

y = -7

r = [tex]\rm \sqrt {(7\sqrt{3})^2 +(-7)^2}[/tex]

r = √196

r = 14

tan [tex]\rm \theta[/tex] = (-7)/(7√3)

[tex]\rm \theta[/tex] = 30 degree

Therefore in polar form the expression is ( 14 , 30 ).

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Answer:The polar form of 7 StartRoot 3 EndRoot minus 7 i is 14(cos(330o) + i sin(330o))

Step-by-step explanation:

Given the triangle information below solve for the x value and the measure in degrees of angle a

Answers

x+61+x+43+90=180
x+x=2x
61+43+90=194
2x+194=180
194-189
2x=15
x=7.5
43+7.5=50.5

What is the image of (4,−8) after a dilation by a scale factor of 1/4 centered at the origin?

Answers

Answer:

(1,-2)

Step-by-step explanation:

you just have to multiply the coordinates by 1/4

4x1/4=1

-8x1/4=-2

so the new coordinates are (1,-2)

The image of the given point is (1,-2).

Important information:

The coordinates of the point are (4,-8).Point is dilated by a scale factor of [tex]\dfrac{1}{4}[/tex] centered at the origin.Dilation:

If a point is dilated by a scale factor of [tex]k[/tex] centered at the origin, then the rule of dilation is defined as:

[tex](x,y)\to (kx,ky)[/tex]

Using the above rule, we get

[tex](4,-8)\to \left(\dfrac{1}{4}(4),\dfrac{1}{4}(-8)\right)[/tex]

[tex](4,-8)\to \left(1,-2\right)[/tex]

Therefore, the image of the given point is (1,-2).

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State a number that would lie between -2.15 and -2.16 on the number line

Answers

some possibilities would include the following:

2.151, 2.152, 2.153, 2.154, 2.155, 2.156, 2.157, 2.158, 2.159

there are more possibilities, but these are the most simple answers you could give :) hope this helped!

A number that would lie between -2.15 and -2.16 on the number line are 2.151.

What is a number line?

Integers are arranged at equal intervals along horizontal straight lines called number lines. A number line can be used to represent every number in a series. The endpoints of this line go on forever. Some will have a defined beginning and end. It refers to those as closed number lines. Number lines might be alternatively left empty or blank. A number ladder is a vertical number line.

There are some possibilities would include the following:

2.151, 2.152, 2.153, 2.154, 2.155, 2.156, 2.157, 2.158, 2.159

therefore, the numbers that are between 2.15 and 2.16 are 2.151.

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Maria was approved for a 10-year, Federal Unsubsidized student loan in the
amount of $17,700 at a rate of 3.9%. Loan repayment will begin after 4.5
years.

Answers

Answer:

3796.65

Step-by-step explanation:

I = $ 3,106.35

Equation:

I = Prt

Calculation:

First, converting R percent to r a decimal

r = R/100 = 3.9%/100 = 0.039 per year,

then, solving our equation

I = 17700 × 0.039 × 4.5 = 3106.35

I = $ 3,106.35

The simple interest accumulated

on a principal of $ 17,700.00

at a rate of 3.9% per year

for 4.5 years is $ 3,106.35.

$ 6,903.00 - 3,106.35 = 3796.65

responda a expressão 5x+6y+x+2:​

Answers

[tex]\tt{}5x + 6y + x + 2[/tex]

[tex]\tt{}6x + 6y + 2[/tex]

[tex]\tt{}2(3x + 3y + 1)[/tex]

Stacy is a makeup artist. She charges a travel fee of $15 and $50 per hour for her services. Write a linear equation to represent this situation.

Answers

Answer:

an addition problem

Step-by-step explanation:

4 times 67 please only serious awnsersss

Answers

Answer:

268 hope i helped

Step-by-step explanation:

Answer:

268!

Step-by-step explanation:

You can easily g0ogle this so you don't need to waste points!  

HELPPP I WILL MARK BRAINLIEST

Answers

Answer:

D

Step-by-step explanation:

Answer:

D m-2

Step-by-step explanation:

Because you can see that input is m and the answer is the output

35-2=33

36-2=34

hope this helps!

pls brainliest

How to solve 6x + y= -5, -6x + 12y=96 using elimination and does it have no solution or many solutions?

Answers

Answer:

x = -2

Step-by-step explanation:

Arrange 6x + y= -5, -6x + 12y=96 vertically:

6x + y= -5

-6x + 12y=96       Now combine like terms:

--------------------

       13y = 91

Solving for y by dividing both sides by 13:  y = 7

Find x by substituting 7 for y in the second equation:  -6x + 12(7) = 96

Then -6x = -84 + 96, or:

-6x = 12, and so x = -2

What is the area of a square with side lengths of 3/5 units?
What is the side length of a square with area 1/16 square units?
What is the volume of a cube with edge lengths of 2/3 units?
What is the edge length of a cube with volume 27/64 cubic units?

Answers

Answer: 1/6

Step-by-step explanation:

Alexa surveyed 7 students and found 2 like scary movies.based on this information how many students would like scary movies out of 35 students

Answers

The answer is 10 10 students liked scary movies out of 35

Convert 1 4/16 into a percent.

Answers

Answer:

it is 25 percent

Step-by-step explanation:

Answer:

the answer is 1.25 un decimal

Can somebody plz help solve this word problem and write the equation and answer together thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD

Answers

the answer is page 27
Erik has read 23 pages already and stopped at page 49. From what page did he start from will be
49–23 = 26 which mean, he must have started from page 26

Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day, R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells Thomas collects on any given day, T, is approximately Normal with a mean of 47.9 shells and a standard deviation of 11.5 shells. Assume the two random variables are independent of each other. What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is 120 or more? 0.002 0.209 0.284 0.791

Answers

Answer: .209

Step-by-step explanation:

took the test

A bag contains red, green, and yellow marbles. The probability of selecting a red marble is 35%. What is the probability of not selecting a red marble?

Answers

Probablity of selecting a red marble= 35%

Probablity of not selecting a red marble= 100%-35%

=65%

Hope it helps you. Please mark brainliest.

every rational numbers is a ________​

Answers

Answer:

Number that can be definitely defined, like 3.75, not 3.777....

Hope that helps!

Step-by-step explanation:

What is the sum of the interior angles of this pentagon? MULTIPLE CHOICE EASY

Answers

Answer:

Option B 540 is the amswer

Please help me I want to get a perfect score

Answers

Answer:

the first and third one

Step-by-step explanation:

have a great day

Can someone please help me with this

Answers

Answer:

Step-by-step explanation:

1. Not a function. Fails the vertical line test.

2. It is a quadratic function.

3. It is a linear function.

4. Not a function. Two of the points have the same x-coordinate but different y-coordinates.

u + 4u (u = 6) Answer please






What're yu still doing up? *_*

Answers

30 is the correct answer also I’ve downed coffee and monster

u + 4u = ?

According to the question, the value of u is 6.

6 + 4(6) = 6 + 24 = 30

u + 4u = 30 (If the value of u is 6)

Write down 3 specific goals you’d like to accomplish in middle school. Make sure at least 1 is a long-term goal.

Make sure your goals are specific
Be clear and describe exactly what you need to do
The goal has a realistic deadline or time frame for achieving it
Make sure you will know when you’ve achieved the goal

Answers

Answer: SMART Goal: I will keep my locker clean and organized as a sign of respect for myself and to save time.

Achievable: Each week, I will clean out my locker by throwing away anything I don’t need and making sure everything is in its correct place.

Time-Based: I will organize my locker before school starts. I will clean it every week. By the end of the first semester, I’ll automatically know where everything in my locker can be found.

Step-by-step explanation:

PLEASEE HELPP

3. Evaluate the following equation for x. 2 X = -20 5​

Answers

Answer:

x=50

Step-by-step explanation:

Answer:

2x°=-205

x=-205/2=-102.5

The blue dot is at what value on the number line?
The blue dot is at what value on the number line? PLEASE HELP!

Answers

Answer:

-3

Step-by-step explanation:

Answer:

I think it is 0

Step-by-step explanation:

the 9 goes down by 3 so maybe each point goes down 3

Factor.
22 - 10z+16
Show your work

Answers

Answer:

2(19-5z)

Step-by-step explanation:

Factor out 2

Consider 11-5z+8. Multiply and combine like terms.

Rewrite the complete factored expression.

Noah was doing some homework and answered the following questions:



5.5. -3/5=3.3



a) Do you agree with his answers? If you disagree, explain your reasoning.

Answers

Answer:

yes you are correct as 3/5 = 0.6 and 0.6*5.5 = 3.3

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