Mathematics College

Which point is a reflection of (-4,-3) across the y-axis?
O (3, 4)
O (4, -3)
O (-3,-4)
O (4,3)

Which Point Is A Reflection Of (-4,-3) Across The Y-axis?O (3, 4)O (4, -3)O (-3,-4)O (4,3)

Answers

Answer 1

Answer:

The point after the reflection of (-4,-3) across the y-axis is:

(4, -3)

Hence, option B is correct.

Step-by-step explanation:

When a point P(x, y) is reflected across the y-axis, we reverse the sign of the x-coordinate while the y-coordinate remains the same.  

Thus,  

The rule to reflect a point across the y-axis is:  

P(x, y) → P'(-x, y)

In our case, we are given the point (-4, -3)

Let say the point is A(-4, -3)

Thus, using the rule to reflect a point across the y-axis is:  

P(x, y) → P'(-x, y)

A(-4, -3) → A'(-(-4), -3) → A'(4, -3)

Therefore, the point after the reflection of (-4,-3) across the y-axis is:

(4, -3)

Hence, option B is correct.

Related Questions

A basketball coach kept stats for his team in free throw percentage and steals (among others). At the last game, Erin's free throw percentage was 79% and she had 4 steals. The team averaged 87% from the free throw line with a standard deviation of 12 and they averaged 7 steals with a standard deviation of 3. In which category did Erin do better compared with her team

Answers

Answer:

Due to the higher z-score, she did better in the free throw category.

Step-by-step explanation:

Z-score:

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

She did better in the category that she had the higher z-score:

Free-throws:

Her free throw percentage was 79%, which means that [tex]X = 79[/tex]

The team averaged 87% from the free throw line with a standard deviation of 12, which means that [tex]\mu = 87, \sigma = 12[/tex]. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{79 - 87}{12}[/tex]

[tex]Z = -0.67[/tex]

Steals:

She had 4 steals, which means that [tex]X = 4[/tex]

Averaged 7 steals with a standard deviation of 3, which means that [tex]\mu = 7, \sigma = 3[/tex]. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{4 - 7}{3}[/tex]

[tex]Z = -1[/tex]

Due to the higher z-score, she did better in the free throw category.

Jeremy used 5/6 slices of bread throughout the week. If there was 24 slices of bread, how many slices did Jeremy use?

Answers

18

18

18

18 dude the answer is 18

Answer:

18

Step-by-step explanation:

Pls help I’ll brainlest

Answers

Answer:

30.5 feet / minute

Step-by-step explanation:

Rate of descent is the same as speed (of falling). The formula for speed is distance / time = speed

First, find how much it fell.

4595 - 3131 = 1464 feet

Divide the distance by the time.

1464 feet / 48 minutes = 30.5 feet / minute

Dora and boots are decorating cupcakes for a bake sale. Dora already has 25 cupcakes decorated and can decorate 10 cupcakes per hour. Boots has no cupcakes decorated yet but can decorate 15 cupcakes per hour. When will Dora and boots have the same number of cupcakes decorated and how many will they have

Answers

Answer: after 5 hours, 75 cupcakes

Step-by-step explanation:

Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. The company has 21 total cards in inventory. 14 of those cards are birthday cards. What is P(not a birthday card)​

Answers

Answer:

P = 7

Step-by-step explanation:

We have 21 total cards and out of those 21 cards, 14 of those are birthday cards. So that means that the amount of cards that are not birthday cards is the number of cards subtracted by the number of birthday cards, also shown as 21 - 14. So 21 - 14 = P, so now we solve what 21 - 14 is which is 7, so that means P = 7.

Let me know if you have any questions.

A rectangle has the dimensions 2.3 x 2.1. If I want a rectangle that has the area 16 times the size of the original rectangle, what will be my new dimensions?

Answers

Answer:

Either 36,8 × 2,1 or 2,3 × 33,6

3(x-2)+7=2(x+5)
What is the answer to this please

Answers

Answer:

x=9

Step-by-step explanation:

distribute: 3x-6+7=2x+10

add like terms: 3x+1=2x+10

add the x's and the integers: x=9

Which choice shows three lengths that cannot be the lengths of the three sides of a triangle?

Answers

Answer:

The right answer is B.

Step-by-step explanation:

To be sure if three sides could be used to form a triangle, you need to remember that two sides of a triangle added together is always greater than the final side. B is the only selection that does not work for the law, 3 + 5 = 8 which is smaller than 10, so the corrct answer is B.

Amy pays $1.71 in postage to mail a CD to a friend. She uses 41-cent stamps and 6-cent stamps. How many of each stamp did Amy use?

Answers

Answer:

3 41-cent stamps and 8 6-cent stamps

Step-by-step explanation:

I believe she used 3 41-cent stamps (which is $1.23) with $0.48 leftover which we can use $0.06 to get rid of. We need to use 8 of the $0.06 stamps.

Point B, located at (-5, -8), is rotated 360°. What are the coordinates of point B?
O(-5, -8)
(5,8)
O (5,-8)
0 (-5,8)

Answers

(-5,-8)
The coordinates are still the same because a rotation of 360° is a complete circle, therefore the points remain in the same spot.
Number 1, or A. 360°

9x-(3x-3)=21
Solve the equation. Select the correct choice below and if necessary, fill in the answer box to complete your choice. The solution set is (Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed.) The solution is all real numbers. The solution is the empty set.

Answers

9x-(3x-3)=21 is x = 3 when simplified.

pattie spent 3/4 of her allowance on a backpack. If her allowance is $24, how much of her allowance is left after she purchased the backpack?

Answers

Answer:

she has 6 dollars left

Step-by-step explanation:

she spent $18 on the backpack

Please help! Find the value of X. Round to the nearest tenth. acellus

Answers

9514 1404 393

Answer:

  38.2°

Step-by-step explanation:

The law of sines tells you ...

  sin(x)/15 = sin(27°)/11

  sin(x) = (15/11)sin(27°) . . . . . multiply by 15

  x = arcsin((15/11)sin(27°)) ≈ arcsin(0.619078) ≈ 38.2488°

  x ≈ 38.2°

_____

Additional comment

In "law of sines" problems, you need to identify a side and opposite angle that you know both values of. Then, you need to identify whether you're looking for an angle or a side, and whether its opposite side or angle is known. If two angles are known, you can always figure the third from the sum of angles in a triangle.

Here, we have angle 27° opposite side 11. We are looking for an angle, and we know its opposite side. This lets us use the ratio formula directly. Since the angle is the unknown, it is useful to write the equation with sines on top and sides on the bottom.

The given angle is opposite the shorter of the given sides, so this triangle has two solutions. We assume that we want the solution that is an acute angle  (141.8° is the other solution). That assumption is based on the drawing. Usually, you're cautioned not to take the drawings at face value.

Please, please, please, please help

Answers

1,126.25 hope this helped :)
It’s 198.75 dollars
It’s C

5 more than the product of 12 and 8 as a numerical expression.

Answers

Answer:

(12x8) + 5

Step-by-step explanation:

The product of 12 and 8 would be multiplication, so you can represent that as

(12x8) or 12x8

"5 more" simply means addition

So if you were to put all that together as a numerical expression it would be

(12x8) + 5

Hope  this helps!



The answer is 12x8+5

A total of 190 people attended the opening night of a school
musical. Student tickets cost $4.50 each while general
admission tickets cost $6 each. If total sales were $996, how
many general admission tickets were sold?

Answers

Answer:

94

Step-by-step explanation:

x=student tickets y=general admission

We can write the two following equations

x+y=190

4.5x+6y=996

I am going to solve this through substitution

We first need to get a variable by itself

x+y=190

x-190= -y

-x+190=y

We can plug this value in for y into the second equation

4.5x+6(-x+190)=996

4.5x-6x+1140=996

-1.5x= -144

x=96

Now that we know that x=96 we can plug this value into any of the two beginning equations and solve for y

96+y=190

y=94

HOW DO I DO THIS HELP

Answers

Answer:

I am pretty sure that you would divide 247 by 19 and whatever that answer is would be the answer

Step-by-step explanation:

PLZZZZZ HELP IT IS DUE IN 5 MINUTES

Answers

i’m pretty sure it’s D

helpppp it’s dueee rnnnn

Answers

Answer:d and a

Step-by-step explanation:

how can equations help you model the relationship between two quantities

Answers

Answer:

I dosent show anything that I should solve

Step-by-step explanation:

   

-7z-2=12.
can u please show the work also

Answers

Answer:

z = -2

Step-by-step explanation:

-7z -2 = 12

-7z = 14 (add 2 on both sides)

z = -2 (divide -7 on boths sides)

z = -2

-7z = 12 + 2

-7z = 14

z = -14/7

z = -2

If I have 41 red mechanical pencils and each pencil has 3 pieces of lead in it. How many pieces of lead are there in all

Answers

Answer: There are 123 pieces in total.

Step-by-step explanation: If you have forty-one pencils, and each has three pieces of lead, you multiple forty-one by three.

Total lead = 41 * 3

Total lead = 123 pieces

Susan reads a book at a rate of 1 page every 3 minutes. If her reading rate remains the same, which method could be used to determine the number of minutes for her to read 18 pages?

Answers

Multiply 3 by 18 and that is... 54 so it would take her 54 minutes to finish 18 pages, so basically the method that could be used is multiplying

a ball is thrown from a height of 40 meters with an initial downward velocity of 5 m/s

Answers

0=40-10t-5t^2

t^2+2t-8=0

(t+4)(t-2)=0

t=-4 (not a solution) or t=2

Answer: after 2 seconds

what is 12 more than m

Answers

What? You’ve got a picture or something?

PLEASE HELP!! 30 POINT!

What is the length of side s of the square shown below?
1450
6
s
90°
O A. 2
B. 6
O C. 16

Answers

Answer:

(E) 3(sq rt 2)

Step-by-step explanation:

the figure is a square so all four sides are equal and has 90 degree corners.

the diagonal has the value of 6 so:

6^2=s^2+s^2

36=2s^2

s^2=18  or sq rt 18 which would be 3(sq rt 2)

The price of lunch in the school cafeteria was 2.50$ last year this year the price is 2.70$. What is the percent increase

Answers

Answer:

8 percent

Step-by-step explanation:

There is an 8 percent increase, because if you do 20 cents divided by 250 cents, you get 0.08, which is 8 percent. Also to double check, you can do 250 * 1.08. By the way, that is some rip off lunch.

A_________is a set that is contained in a larger set.

Answers

A subset is a set that is contained in a larger set.

Determine the measure of side d in the following diagram. Make sure that your answer is rounded to the nearest tenth.

Answers

Yo bro bro I’m going back on the road right after my car I’m down to

Solve for y:
7y + 3y - 2y + 12 = 60

Answers

Answer:

Explanation:

7y + 3y - 2y + 12 = 60
8y + 12 = 60
8y = 60 - 12
8y = 48
y = 48/8 = 6
Other Questions
Your teacher gave you 5 of a bag of candy, but she onlygave your friend of a bag.How much more of the bag did your teacher give you thanyour friend? Which events led to the creation of a national identity in Spain? Check all that apply.The Reconquista took power from Muslim leaders.O The Age of Exploration helped expand Spain's influence.The marriage of Isabella I and Ferdinand II united territory.O The rise of the Franks unified most of the clans in the region.The Hundred Years' War encouraged a sense of nationalism.The Spanish Inquisition made Christianity the dominant religion. What is the area of the shaded region? A spring has a force constant of 40000 N/m.How far must it be stretched for its potential energy to be 42 J?Answer in units of m A football team scored 22 points in game 1 and 30 points in game 2. A basketball team scored 100 points in the first game and 108 points in the second game. Which team had the largest percent increase between game 1 and game 2. write three sentences about what the speaker see from the train one about animals one about things one about people from the poem Railway carriage The accompanying graph represents the yearly cost of playing 0 to 5 games of golf at the Shadybrook Golf Course. What is the total cost of joining the club and playing 10 games during theyear? Solve the following equation: 4(x + 2) - 17 = 35A: -11B: 25/2C: 15D: 11 Read the excerpt from Wonder by R. J. Palacio.The other kids had started out the door, so I followed them."See you soon," said Mom, her voice sounding a little higher than normal. I didn't answer her.Which inference correctly identifies how August and his mother are most likely feeling?August follows the other kids out the door, which shows that he is excited and curious; his mother's voice sounds a little higher than normal, which shows that she is regretful.August follows the other kids out the door, which shows that he is confused; his mother says she will see him soon, which shows that she is nervous and protective.August does not answer his mother, which shows that he is angry and scared; his mother's voice sounds a little higher than normal, which shows that she is worried.August does not answer his mother, which shows that he is surprised; his mother says she will see him soon, which shows that she is excited and confident. how many atoms are in 7.3 moles of arsenic atoms? 1 mol = 6.02 x 10^23 particles Help! Sorry if its hard to see it would not look different everytime I retook the picture! :) Help and you get candy :3 Georgia is making necklaces. Each necklace has 3 blue beads and 5 red beads. How many red beads will she need to make 8 necklaces?A. 25 red beads B. 30 red beadsC. 35 red beadsD. 40 red beads BRAINLIEST GETS 11 POINTS PLEASEE !! HELPPP IF U HELP U GET 50 POINTSTHE FAT CAT ATE THE RAT. Delete the first E and regroup the words in groups of 3. Does the sequence still make this? How does this illustrate genetic mutation? 4-55 A firm expects to install smog control equipment on the exhaust of a gasoline engine. The local smog control district has agreed to pay to the firm a lump sum of money to provide for the first cost of the equipment and maintenance during its 10-year useful life. At the end of 10 years the equipment, which initially cost $10,000, is valueless. The firm and the smog control district have agreed that the following are reasonable estimates of the end-of-year maintenance costs: Year 1 2 3 4 5 $75 100 125 150 175 Year 6 7 8 9 10 $200 225 250 275 300 Assuming interest at 6% per year, how much should the smog control district pay to the firm now to provide for the first cost of the equipment and its maintenance for 10 years choose all the equations that are true if x=9A. x27=24B. 3/8x =3 3/8C. 8.7+x=17D. 5x=45 please helpp please im in deep need to learn thisplease I NEED HELP PLEASE !!! Ee = %2 xkx e?. Re-arrange to give an equation for: a) The spring constant k.b) The extension squared e2.c) The extension e. Im suing the government for violating my rights. My case involves this type of law?