Dave's optometrist used medicine to dilate his eyes. Before dilation, his pupils had a diameter of 2.1 millimeters. After dilation, his pupils had a diameter of 6.3 millimeters. What was the scale factor of the dilation?​

Answers

Answer 1

Answer:

Step-by-step explanation:

6.3 divided by 2.1 equals 3.

3 is the scale factor

Answer 2

Answer:

2

Step-by-step explanation:

I just took the quiz


Related Questions

i really need help with math

Answers

Answer:

[tex]m\angle BED = 34^\circ[/tex]

Step-by-step explanation:

Angles in a Circle

We need to recall some basic concepts.

An inscribed angle is the angle formed in the interior of a circle when two secant lines intersect.

An arc of a circle is a portion of the circumference of the circle.

Theorem: Inscribed angles subtended by the same arc are equal.

In the figure provided, the points BD form an angle of 34° and the arc BD.

Similarily, arc BD also has two secants BE and DE that form the angle BED.

Thus, applying the above theorem, angle BED and 34° are subtended by the same arc, and the measure of BED is also 34°

[tex]\mathbf{m\angle BED = 34^\circ}[/tex]

I WILL GIVE 50 POINTS
The sets of numbers 3, 4, 5 and 8, 15, 17 are Pythagorean triples. Use what you know about the Pythagorean Theorem and explain or show why they are Pythagorean triples. Be sure to show your work for each set of triples!
Please!!! For the love of GOD can someone answer this quickly!!!!!

Answers

Answer:

Using pythagorean th. you can easily prove it by squaring and adding the first two numbers whose square root will be equal to 3rd one. Try it!!

Eg: 3^2 + 4^2 = 5^2

Step-by-step explanation:

3² + 4² = 25 = 5²

8² + 15² = 289 = 17²

Answer:

3^2+4^2=5^2

9+16= 25= 5^2=

25     = 25  

8^2+15^2= 17^2

64+225= 17^2

289   =      289

Step-by-step explanation:

both side a and side b are equal to side c

The perimeter of the figure below is 133.1 ft. Find the length of the missing side.
9.7 ft
8.9 ft
8.9 ft
8.9 ft
18.6 ft
11.6 ft
20.5 ft
27.5 ft
8.9 ft
?

Answers

Answer:

9.6 ft

Step-by-step explanation:

133.1 - (9.7 + 8.9 + 8.9 + 8.9 + 18.6 + 11.6 + 20.5 + 27.5 + 8.9)

133.1 - 123.5

= 9.6

Answer:

9.6

Step-by-step explanation:

convert the equation to the standard form of parabola and graph the parabola the focus and the directrix
x^2+ 8x - 16 - 48 = 0

Answers

Answer:

multiple choice?

Step-by-step explanation:

Which expression is equivalent to 4(2x + 1) - (-6x)?
14x+4
8x-2
2x+4
-14x-4

Answers

Answer:

14x+4

Step-by-step explanation:

4*2x=8x

4*1=4

8x--6x=14x

14x+4

PLEASE HELP ME
Solve the equation the square root of the quantity x plus 4, minus 3 equals 1 for the variable. Show each step of your solution process.

Answers

Answer:

1.41

Step-by-step explanation:

Square root of 1 squared+4-3 = 1.41

hope this helped : )

Answer:

I seem to be late but I feel like the answer is X = 12.

Step-by-step explanation:

I will start out with my expression .

First step i take is adding 3 to both sides of the expression. [tex]\sqrt{x} +4 - 3+3 = 1 + 3[/tex] . This leaves me with [tex]\sqrt{x}+4 = 4[/tex].

My second step I will need to remove the check mark thingy away from the expression. In order for me to do that, I am going to have to square both sides of the expression giving me this!  [tex]\sqrt{x} +4^{2} = 4^{2} = x +4 = 16[/tex] .

Now for my final step which will be to remove 4 from both sides of my expression. X + 4 – 4 =16 – 4 = x = 12.

Leaving me with my answer of X = 12

I hope this helped you I just turned this assignment in not too long ago.

Find the product.

(−3)(8)

Answers

Answer:

-24 is the correct answer

Step-by-step explanation:

The students in Dave's grade voted to select a guest speaker. 55% of the students voted for a famous athlete. If there are 40 students in Dave's grade, how many students voted for the athlete?

Answers

22 students voted for the athlete

PLD HELP ME I WILL FAIL PLS​

Answers

Answer:

its d

Step-by-step

multiply

WILL GIVE BRAINLIEST!!!!!
A pair of linear equations is shown below:

y = −2x + 3
y = −4x − 1

Which of the following statements best explains the steps to solve the pair of equations graphically? (4 points)

Graph the first equation, which has slope = 3 and y-intercept = −2, graph the second equation, which has slope = −1 and y-intercept = −4, and find the point of intersection of the two lines.
Graph the first equation, which has slope = −3 and y-intercept = 2, graph the second equation, which has slope = 1 and y-intercept = 4, and find the point of intersection of the two lines.
Graph the first equation, which has slope = −2 and y-intercept = 3, graph the second equation, which has slope = −4 and y-intercept = −1, and find the point of intersection of the two lines.
Graph the first equation, which has slope = 2 and y-intercept = −3, graph the second equation, which has slope = 4 and y-intercept = 1, and find the point of intersection of the two lines.

Answers

Answer:

C. Graph the first equation, which has slope = −2 and y-intercept = 3, graph the second equation, which has slope = −4 and y-intercept = −1, and find the point of intersection of the two lines.

The two equations are in slope intercept form which is y = mx + b where m is the slope and b is the y-intercept.

In the first equation (y = -2x + 3), -2 is the slope since it is the coefficient. "b" is 3 since it is the constant of the equation.

In the second equation (y = -4x -1), -4 is the slope is the coefficient, and the y-intercept is -1 since it is the constant.

To solve the equations graphically, graph them and find the point where they intersect.

Step-by-step explanation:brainlist

Answer: C

Step-by-step explanation:

1 2/5 ÷ 4/7 kjahs;kjhg;

Answers

Answer: 2.45

Step-by-step explanation:

Answer:

Your answer is 2 [tex]\frac{9}{20}[/tex]

Step-by-step explanation:

1 [tex]\frac{2}{5}[/tex] divided by 4/7 = 2 [tex]\frac{9}{20}[/tex]

Mark as Brainliest!

gtbbbbbbnweij etrbintriubnrtgiubjntiubntriubidjfbfjdbdfbgfgbfgfdbenriub ugnbsssssssssssssssssssssssssssssssssssssssssssssssssssssyjvhfghregfhjvfdbgbgvbgb

Answers

Answer:

No solutions is your answer

Step-by-step explanation:

I hope it helps and don't give up just like it says in i ready

12. Graph the following linear equations. State the slope and y-intercept for
each.
a. y= 5x – 2
b. y= 2x + 10
C. y= -25x + 100

Can someone help me?

Answers

We would need to see a picture in order to solve

Which equation in standard form has a graph that passes through the point (5,-2) and has a slope of 7/2
A:7x - 2y=35
B:7x - 2y=39
C:7x - 2y=-31
d:7x - 2y=-24

Answers

Answer:

B

Step-by-step explanation:

Since it's MCQ and it's LHS is all 7x - 2y, you can simply sub in (5, -2) into each option and see which one has its LHS = RHS.

7(5) - 2(-2) = 35 + 4 = 39

Hence, option B is the answer.

Topic: Coordinate Geometry

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

1.Let x, y be any two numbers that satisfies the conditions x ≠0, y ≠0, and x 0

C.y/x>1

D.x/y<1

2.A pickup truck that can hold up to 3000 pounds is carrying a big machine that is 300 pounds and a few smaller ones that each weigh 60 pounds.

At least how many small machines can you fit so that it will not exceed the weight limit of the truck?

A.no more than 50

B.no less than 50

C.no less than 45

D.no more than 45

3.It usually takes Claude 40 minutes driving at 48 miles per hour to go from home to work. But due to road maintenance today, Claude has to take a detour, which makes the trip 8 miles longer than usual. What is the minimum speed Claude should travel so that he can reach the destination in less than 48 minutes?

A.30 miles per hour

B.56 miles per hour

C.50 miles per hour

D.64 miles per hour

*please make sure you answer all the questions please and thank you.

Answers

Answer:

x and y can be any two numbers greater than zero such that y is also greater than x

D.no more than 45

C.50 miles per hour

Step-by-step explanation:

Let the two numbers be such that x< y because we have been given y/x>1 and x/y< 1 .

Suppose we take y= 9 and x= 3 then

9/3 > 1

3>1

Also

3/9 < 1

1/3 < 1

x and y can be any two numbers greater than zero such that y is also greater than x

2. Total weight that can be carried is 3000 pounds.

The big machine is 300 pounds. The weight that the truck can carry beside the big machine is 3000-300= 2700 pounds.

The smaller machines weigh 60 pounds

The number of smaller machines that can be carried is 2700 ÷ 60= 45 other than the big machine.

3. Total distance = Speed * time

                           = 48 * (40/60) = 32 miles

New distance = 32+ 8= 40 miles

New time = 48 minutes

Speed = distance / time = 40/ 48/60=  50 miles per hour

6. Write an equation for the line that is parallel to the given line and that passes through the given point.
3
y =
X-9; (-8. -18)
3
11
y-Ž**ZH
y-
**-12
F
y = $x-12
y=-x+12
G
J

Answers

Answer:

The equation of new line is: [tex]\mathbf{y=\frac{3}{4}x-12}[/tex]

Option H is correct.

Step-by-step explanation:

We need to write an equation for the line that is parallel to the given line [tex]y=\frac{3}{4} x-9[/tex] and point (-8,-18)

The equation of required line will in in form [tex]y=mx+b[/tex] where m is slope and b is y-intercept.

We need to find slope m and b y-intercept for new line.

Finding slope:

When two lines are parallel, they have the same slope.

The slope of given line can be found by comparing the equation [tex]y=\frac{3}{4} x-9[/tex] with [tex]y=mx+b[/tex]

So, m = 3/4

The slope of new line will be: [tex]m=\frac{3}{4}[/tex]

Finding y-intercept:

Using slope m = 3/4 and point (-8,-18) we can find y-intercept

[tex]y=mx+b\\-18=\frac{3}{4}(-8)+b\\-18=-6+b\\b=-18+6\\b=-12[/tex]

So, y-intercept is b=-12

The equation of new line having m = 3/4 and b=-12 is:

[tex]y=mx+b\\y=\frac{3}{4}x-12[/tex]

So, the equation of new line is: [tex]\mathbf{y=\frac{3}{4}x-12}[/tex]

Option H is correct.

6) Twenty-one subtracted from a number is -8. Find the number.

Answers

Answer:

13

Step-by-step explanation:

x - 21 = -8

add 21 to each side

x = 13

13


Explanation:

x-21=(-8)

-8+21=13

5) Slope = -5, y-intercept = 5

Answers

Answer:

yhtgree

Step-by-step explanation:

Select the correct answer from the drop-down menu. In this triangle, the product of tan A and tan C is .

Answers

Answer:

https://brainly.com/question/14708539

Jonathan wants to the new baseball game for his game console. The game costs $45.99. If sales tax is 6%, write an equation to find the total cost of the game, represented as P.

Answers

0.0765 i think is the answer

0.5² × (20 - 2² × 3) × (2/5 × 25)

Whoever answers this gets brainliest and thumbs up

Answers

Answer:

20

Step-by-step explanation:

= 0.25 (20−(22) (3) ([tex]\frac{2}{5}[/tex](25)

= 0.25 (20−(4) (3) ([tex]\frac{2}{5}[/tex](25)

= 0.25 (20−12) ([tex]\frac{2}{5}[/tex](25)

= (0.25) (8) ([tex]\frac {2} {5}[/tex](25)

= 2 ([tex]\frac {2} {5}[/tex](25)

= (2) (10)

= 2 x 10 = 20

If six 20-ounce bottles of soda costs $9.30 what is the unit price per bottle?
$1.90

$3.60
$0.65
$1.55

Answers

It is $0.65 because 6 divided by $9.30 is $0.645 and that rounds up to $0.65 :)

pls helpp i’m confused

Answers

Answer:

D.

Step-by-step explanation:

it can't be B or C since Function A has a greater y-intercept of 2. and if you graph function A you can see that Function B has a greater rate of change

Answer:

D

Step-by-step explanation:

The rate of change for the graph is 2 so we can rule anything out that shows A has a larger rate of change. Now we look at the y intercept on the graph which is -2. The one in the function is 2 so we eliminate anything that says B has a greater y intercept this should give you the answer

Hope this Helps :)

free!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

thanks

Step-by-step explanation:

Answer:

It's letting me add an answer now. So thanks for the points!

Which expression can be simplified to find the slope of the trend line in the scatter plot?

Answers

the first one is correct

the product of y and 4 is less than -16

Answers

Answer:

4 times 4 < -16

Step-by-step explanation:

Hope this helps!!

The population of a town doubled in 5 years, then doubled again in the next 10 years. What is the percent of increase?
A).100%.
B).300%.
C).200%.
D).400%.​

Answers

D). 400% I hope this helps you with your answer

Is it right, if it isn't please correct me and explain

Answers

Answer:

Your right!! Good Job!!

Step-by-step explanation:

Could you give me brainliest please? I only need one more :)

-10 + 7/4p = -38 I’m trying to figure it out but I just can’t

Answers

P = -16 I'm pretty sure

z divided 4; z=824 ,(evalute each expression for the value given)

Answers

Answer:

206 is the answer for you if am wrong sorry

Answer:

206

Step-by-step explanation:

z = 824/4

Z = 206

so therefore Z is equals to 206

Other Questions
Jonathon works for a U.S. company that doesn't produce goods domestically, but instead buys them from other countries and resells them in the United States. Jonathon's company illustrates the concept of A. countertrade. B. subcontracting C. exporting D. importing. E. outsourcing Kim made $5.35 on the first dayshe set up her lemonade stand. Ifshe makes the same amount eachday for 6 days, how much moneywill she have? (6-5)A $42.80B $37.30C $32.10D $28.70 Which range function will generate a list of all even numbers between 12 and 84 inclusive? range (12, 86, 2) range (11, 84, 3) range (12, 86, 4) range (10, 84, 2) A driver travels 225 miles in 4 hours and 30 minutes. What was his average speed in mph? Why was Yongle vulnerable as China's ruler? please help,, will mark brainliest!! 7 million x 12millon =WILL MAKE BRAINLIEST An aqueous solution of potassium hydroxide is standardized by titration with a 0.187 M solution of nitric acid. If 22.7 mL of base are required to neutralize 29.4 mL of the acid, what is the molarity of the potassium hydroxide solution? 6. Which of the following types of energy is not lost when energy istransferred between one of the Earth's four physical systems?*heatlightsoundnuclearvibrationmovement RaP BaTle JuSt TyPe In CoMmEnT YoW Which is a fungus that lives together with a certain algae or bacteria?sporehyphaelichenfruiting body Finish the LryicsSince the day that I was bornI been looking out for loveBut never really quite found the oneThey say practice makes perfectI know I deserve itSometimes we should do it for fun PLASE can someone help me i dont get this I have so much h.w I really need help with this and my mind dosent work right now PLASE help ill mark u. brilliant State the Historical Context surrounding both documents.2. Explain the topic and time period. 3. Cite evidence from BOTH documents and explain how the evidence supports your analysis. What is the value of tan A?A: 6/8B: 6/10C: 8/6 How do you think widespread unemployment across the nation would change America? Plz i need help i need ideas for my project idk what to write about I need to write a yearbook page with an author from a book i read the problem is i dont like reading and i need some ideas lol Carl bought an airline ticket. Two weeks ago, the cost of thisflight was $900. What is the percent increase?HELPP Individuals can choose to purchase Microsoft stand-alone software packages, such as the Home and Student versions of Word, Excel, and PowerPoint, for $119.99 each. However, they may choose to purchase the Office Home and Student suite, which has all of these applications in the same package, for a price of $149.99. Microsoft is using a __________ pricing strategy.A) penetration B) prestige C) bundle D) odd-even E) standard mark-up Rewrite this passage so that it includes at least one compound, complex, or compound-complex sentence.You should not get up. You should not make dinner. You think you feel fine. You need to stay in bed. You are sick. You need to give your body a chance to get well. You will only get better with rest. Joy is helping her father to build a rectangular deck that measures 14 ft by 19 ft. Find the area of the deck.