Please help me!!!!!!!!

Please Help Me!!!!!!!!

Answers

Answer 1

Answer:

1)(-2,8)

2)when you reflect a point across the y-axis The y-coordinate remains the same but the coordinate becomes the opposite, meaning that positive numbers become negative a negative number becomes positive

Step-by-step explanation:

For number one since the image is a reflection on the y-axis, the x-coordinate becomes the opposite so the point (2,8) becomes (-2,8)


Related Questions

Which chemical equation is balanced?
Question 2 options:

CH4 + O2 → H2O + CO2

CH4 + O2 → 2H2O + CO2

6CH4 + O2 → 2H2O + 2CO2

CH4 + 2O2 →2H2O + CO2
help

Answers

Step-by-step explanation:

CH4 + 2O2 →2H2O + CO2

the answer

Answer:

The balanced chemical equation of the given reaction are;

b.CH4 + 202-> 2H20 + CO2

Step-by-step explanation:

C=C

H4=2H2

2O2=O2+2O(2O2)

I Think it helps you.

Please help!

Which shows the greatest common factor of these numbers being 14?
A.
28 = 2 x 2 x 7
63 = 3 x 3 x 7
B.
28 = 2 x 2 x 7
42 = 2 x 3 x 7
C.
42 = 2 x 3 x 7
84 = 2 x 2 x 3 x 7
D.
42 = 2 x 3 x 7
63 = 3 x 3 x 7

Answers

Answer:

B. 28 = 2 x 2 x 7

42 = 2 x 3 x 7

Step-by-step explanation:

B is the correct answer. If you look at the list in answer choice B, you will see that each number has a common factor of 2 and 7. When you multiply 2 and 7 together, you get a product of 14.

Answer:

B !

Step-by-step explanation:

Hello sam hhehehe .dk ;

Answers

Answer:

hello

Step-by-step explanation:

Suppose there are two lakes located on a stream. Clean water flows into the first lake, then the water from the first lake flows into the second lake, and then water from the second lake flows further downstream. The in and out flow from each lake is 500 liters per hour. The first lake contains 100 thousand liters of water and the second lake contains 200 thousand liters of water. A truck with 500 kg of toxic substances crashes into the first lake. Assume that the water is being continually mixed perfectly by the stream.
a. Find the concentration of toxic substances as a function of time in both lakes.
b. When will the concentration in the first lake be below 0.001 kg per liter?
c. When will the concentration in the second lake be maximal?

Answers

Answer:

a.  For the first lake;

c = (m·t - 0.005·m·t²)/100000

For the second tank, we have;

c = m·t/200 - m·t²/80000

b. t ≈ 1.00505 hours

c. 200 hours

Step-by-step explanation:

The flow rate of water in and out of the lakes = 500 liters/hour

The volume of water in the first lake = 100 thousand liters

The volume of water in the second lake = 200 thousand liters

The mass of toxic substances that entered into the first lake =  500 kg

The concentration of toxic substance in the first lake = m₁/(100000)

Therefore, we have;

The quantity of fresh water supplied at t hours = 500 × t

The change

The change in the mass of the toxic substance with time is given as follows

dm/dt = (m - m/100000 × 500 × t)/100000

c = (m·t - 0.005·m·t²)/100000

For the second tank, we have;

c = m/100000 × 500 × t - (m/100000 × 500 × t)/200000 × 500 × t

Using an online tool, we have;

c = m·t/200 - m·t²/80000

b. When c < 0.001 kg per liter, we have m < 0.001 × 100000, which gives m < 100

Substituting gives;

0.001 = (100·t - 0.005·100·t²)/100000, solving with an online tool, gives;

t ≈ 1.00505 hours

c. For maximum concentration, we have;

c = m·t/200 - m·t²/80000

m/200000 = m·t/200 - m·t²/80000

1/200000 = t/200 - t²/80000

dc/dt = d(t/200 - t²/80000)/dt = 0

Solving with an online tool gives t = 200 hours

what is the equation of a line in slope intercept form that passes through points (4,3) and (1,-6)
pls help quick : )

Answers

Answer:

y = 3x-9

give me brainliest please

Step-by-step explanation:

To find the equation of a line that passes through two points, use point-slope form.

[tex]y-y_{1} = m(x-x_{1})[/tex] ...

where [tex](x_{1}, y_{1})[/tex] is the first point, and [tex]m[/tex] is the slope.

Start with the slope (m). To find the slope, you find the change in y over change in x, or  [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex].

[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex] = [tex]\frac{-6-3}{1-4}[/tex] = [tex]\frac{-9}{-3}[/tex] = 3

[tex]m=3[/tex]

Then, put the values into point-slope equation.

[tex]y-y_{1} = m(x-x_{1})[/tex]  =  [tex]y-3 = 3(x-4)[/tex]  =  [tex]y-3 = 3x-12[/tex]  =  [tex]y = 3x-9[/tex]

In a class of 38 students, 15 play hockey and twice as many play basketball. Each student in the class plays either hockey or basketball. How many students play both hockey and basketball?

Answers

Answer:

7 students

Step-by-step explanation:

Venn Diagram:

15hockey and 30 basket ball.

45 in total:

45-38=7

so 7 students.

Check:

15:7:30

subtract 7 in middle

8:7:23

8+7+23=38

Correct !!!

Hope this helps plz hit the crown :D

Write the equation in slope-intercept form y−6=−2/5(x−10)

Answers

Answer: y = -2/5x + 10

Step-by-step explanation:

y − 6 = − 2/5 (x − 10)

do distributive property

y - 6 = -2/5x + 4

add six to both sides

y = -2/5x + 10

boom the answer :v

At Gary's car wash 49 cars can be washed in 4 hours. At this rate, how many cars can be washed in 8 hours?

Answers

Answer:

98

Step-by-step explanation:

49 + 49 = 98

If a person who weighs 70 kilograms has a brain that weighs 1.4 kilograms, what percent of the persons body weight is brain

Answers

Answer:

the answer would be around 1.5 to two percent

Step-by-step explanation:

Solve for x. Round your answer to the nearest tenth if necessary.

Answers

Step-by-step explanation:

sin90 = sinx

19 17

sin x=0.8947

x=63.47°

Solve for n
8-n-4
PLZ help

Answers

N=12 i think hope it helps

Determine if the following graph is a function. Find the
domain and range of the following graph. Write your
answer in inequality form.

Answers

Answer:

Yes, it is a function.

The domain is (∞,∞) and the range is (∞,5].

Step-by-step explanation:

A function needs to pass the vertical line test: It can only have one x value and one y value at a time. You simply hold a  ruler to your screen and drag it from left to right (or vice versa) and see if the function touches the ruler once. If it touches once at any given point, it's a function!

The domain is (∞,∞) because there is a line on both ends- meaning it stretches infinitely. The range is (∞,5] since it goes down infinitely and stops at y = 5.

what is the value of this question below when y=2 and z=8
8y-z ? dont answer my shi just for pointsss!!!!

Answers

Answer:

8

Step-by-step explanation:

8(2)-8

=16-8

=8

PLS GIVE BRAINLIEST

Answer:

8

Step-by-step explanation:

plug in

8(2) - 8

16-8

8

what is the equation of a line that passes through (-7, 3) and is perpendicular to -5/3x = 1/4y -8

Select all answers that apply
Y = 3/20x + 81/20
Y-3 = 3/20(x+7)
Y-3 = -20/3(x+7)
Y = -20/3x -32
3x -20y = -81
The answer can be anything thing that occurs during solving the problem or is the answer.

Answers

Answer:

The 1st, 2nd and 5th options are correct.

Step-by-step explanation:

The equation of a line can be written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

①Rewrite the given equation into the form of y=mx+c to find the gradient.

[tex]- \frac{5}{3} x = \frac{1}{4} y - 8 \\ \frac{1}{4} y = - \frac{5}{3} x + 8 \\ y = - \frac{20}{3} x + 32[/tex]

Thus, the gradient of the given equation is [tex] - \frac{20}{3} [/tex].

② Find gradient of unknown line.

The product of the gradients of perpendicular lines is -1.

Let m be the gradient of the unknown line.

[tex]- \frac{20}{3} m = - 1 \\ m = - 1 \div ( - \frac{20}{3} ) \\ m = - 1 \times ( - \frac{3}{20} ) \\ m = \frac{3}{20} [/tex]

③Substitute the value of m into the equation.

[tex]y = \frac{3}{20} x + c[/tex]

④ Find the value of c by substituting a pair of coordinates.

When x= -7, y= 3,

[tex]3 = \frac{3}{20} ( - 7) + c \\ 3 = - \frac{21}{20} + c \\ c = 3 + \frac{21}{20} \\ c = 4 \frac{1}{20}[/tex]

Thus, the equation of the line is [tex]y = \frac{3}{20} x + 4 \frac{1}{20} [/tex].

Thus, the 4th option is incorrect.

Writing c as an improper fraction,

[tex]y = \frac{3}{20}x + \frac{81}{20} [/tex]

Thus, the 1st option is correct.

-3 from both sides of the equation:

[tex]y - 3 = \frac{3}{20} x + \frac{21}{20} [/tex]

Factorise 3/20 out of the right hand side:

[tex]y - 3 = \frac{3}{20} (x + 7)[/tex]

Thus, the 2nd option is correct.

The 3rd option is incorrect as factorising -20/3 out would leave us with -0.0225 as the coefficient of x.

Let's look at the 5th option.

[tex]y = \frac{3}{20} x + 4 \frac{1}{20} [/tex]

×20 on both sides:

[tex]20y = 3x + 81[/tex]

-20y on both sides:

[tex]3x - 20y + 81 = 0[/tex]

-81 on both sides:

[tex]3x - 20y = - 81[/tex]

Thus, the 5th option is also correct.

The speed of light is 3 x 10^8 meters/second. If the sun is 1.5 X 10^11 meters from earth, how many seconds does it take the sunlight to reach the Earth? (Time = Distance/Speed).

Answers

Answer:

Time = 500 seconds  or 8.333 minutes

Step-by-step explanation:

Time = Distance/Speed

Speed of light = 3 x 10^8 meters/second

Distance=1.5 X 10^11 meters

Time = 1.5 X 10^11 meters/3 x 10^8 meters/second

We solve using the scientific notation. When 8 is taken to the top it is subtracted from 11 ( the base 10 is the same -- laws of exponents)

Dividing 1.5  by 3 gives 0.5 .

Time = 1.5 X 10^(11- 8) meters/3 meters/second

Time = 0.5 X 10^3 seconds

Time = 500 seconds

Dividng seconds with 60 will give minutes

Time= 500/60 = 8.333 minutes

what the slope of (-15,9) (-10,3) ​​​

Answers

The slope is - 3/10

Y over x

Answer:

The formula for slope:

[tex]y2-y1/x2-x1[/tex]

so[tex](3-9)/(-10--15)[/tex]

which is

this:[tex]-6/5[/tex]

so the slope is

this:    [tex]-6/5[/tex]

Hope this helps :D

Solve the equation. 4d + 2d – 4d + 4 = 3d

Answers

Answer:

d = 4

Step-by-step explanation:

1. Simplify both sides of this equation, to start off with.

[tex]4d+2d−4d+4=3d

[tex]4d+2d−4d+4=3d[/tex]

[tex]4d+2d+−4d+4=3d[/tex]

2. Combine all the like terms you see here.

(4d+2d+−4d)+(4)=

d+4=3d[/tex]

(2d+4=3d)[/tex]

3. Subtract 3d from both sides of this equation.

[tex]2d+4−3d=3d−3d[/tex]

[tex] - d + 4 = 0[/tex]

4. Subtract 4 from each sides of the equation.

[tex]−d+4−4=0−4[/tex]

[tex] - d = - 4 [/tex]

5. Divide both of the sides by -1.

[tex] \frac{ - d}{ - 1} = \frac{ - 4}{ - 1} [/tex]

Therefore, the answer is d = 4.

Jade has $100 to spend on shoes and socks.She buys a pair of shoes for $75 and and wants to spend the rest of the money on socks.Each pair of socks costs $3.50. What is the greatest number of pairs of socks that jade can buy

Answers

Answer:

21.5

Step-by-step explanation:

I WILL GIVE BRAINLIEST
Estimate the value of the irrational number (0.6289731...)^2. Up to how many decimal digits is the estimation correct?

(1.) 5
(2.) 4
(3.) 6
(4.) 7

Answers

Answer:

6

Step-by-step explanation:

i am 96% sure it is 6

i might be wrong tho so i would wait for another answer ._.

Answer:

Its 6 and give the other guy his brain he deserves it

Step-by-step explanation:

Two sides of a triangle are 12 meters and 16 meters. What is the largest the third side can be?
A) 22 meters
B) 24 meters
C) 26 meters
D) 28 meters

Answers

Answer:

The largest third side would be 26 meters.

Option B is correct.

Step-by-step explanation:

We are given two sides of triangle 12 meters and 16 meters.

We need to find What is the largest the third side can be?

We know that the length of third side should be less than the sum of two sides of triangle

third side < length of first side + length of second side

third side < 12+16

third side < 28

So, the length of third side should be less than 28

We need to find the largest the length of third side can be: from options 22, 24 and 26. We would not consider 28 because length should be less than 28.

So, the largest third side would be 26 meters.

Option B is correct.

simplify (x^2+3)^2-(x^2-1)^2

Answers

Answer:

Simplify the expression.

8x² + 8

Answer:

8(x^2 +1)

Step-by-step explanation:

(x^2 + 3)^2 - (x^2 - 1)^2

(x^2 + 3 - (x^2-1)) • (x^2 + 3 + (x^2 - 1))

(x^2 + 3 - x^2 + 1) • (x^2 + 3 + (x^2 - 1)

(3 + 1) • (x^2 + 3 + x^2 - 1)

4(2x^2 + 1)

4 • 2(x^2 + 1)

8(x^2 +1)

The sum of j and 47 is 55

Answers

j + 47 = 55
j = 8

8 is the missing number.

Can someone please help me with this problem? I don’t understand how to do it..

Answers

Answer:

y=x+2

Step-by-step explanation:

y=mx+b

m is slope

b is y intercept

it crosses the y intercept at (0,2) therefore b is 2

rise over run is 1 so slope is 1

fill in

y=1x+2

or y=x+2

you can fill in any (x,y) point into this

(6+2i)÷3i solve this problem

Answers

2/3-2i hope this helps you

anyone stressed?? vent to me. and (so this will count as a question)
Laura earns $115 a month babysitting. If she saves all of the
money she earns in June and July and uses it to buy a bicycle
that cost $158, how much money will she have left?
A. $230,00
B. $43.00
C. $60.00
D. $72.00

Answers

Answer:72

Step-by-step explanation:

115+115=230

230-158=72

If you add the 115 a month that she earns from babysitting, then add both the months pay together, than subtract 158(cost of the bicycle) by the total pay, you should get 72$

Answer:  D. $72

Step-by-step explanation:

If she earns $115 a month and June and July is a combination of two months then we will have to find the amount she earn toegther in June and July by multiplying 2 by $115.

2(115) = 230

She earned $230 in those months, and if the bicycle cost $158 , then we will have to subtract $158 from $230 to find her remaining amount.

$230 - $158 = $72  

ANSWER THIS CORRECTLY AND I WILL 5 STAR U AND GIVE U POINTS AND THANK YOU
IF NOT ME AND MY CLASS WILL REPORT YOU FOR WRONG ASNWERS AND GIVE U ONE STAR

HELP ME OUT PLS :))
HAPPY THANKSGIVING ALL!

Answers

Answer:

C

Step-by-step explanation:

given:

m= -2 and (3, -1)

point-slope form: y-y1= m(x-x1)

y - (-1) = -2(x-3)

y + 1 = -2(x-3)

Answer:

C.

Step-by-step explanation:

A.) y - 1 = -2(x - 3)

y - 1 = -2x + 6

y = -2x + 6 + 1

y = -2x + 7

B.) y - 1 = -2(x + 3)

y - 1 = -2x - 6

y = -2x - 6 + 1

y = -2x - 5

C.) y + 1 = -2(x - 3)

y + 1 = -2x + 6

y = -2x + 6 - 1

y = -2x + 5

D.) y + 1 = -2(x + 3)

y + 1 = -2x - 6

y = -2x - 6 - 1

y = -2x - 7

What is the solution of 3(x-1) - X = 3 + 2(x-3)?

Answers

Answer:

3(x-1) -X =3+ 2(x-3)

3x-3 -X = 3+2x-6

2x-3= 2x-3

2x-2x =-3+3

0=0

y + 4 = 14(x-12), determine the slope and the y-intercept.

Answers

Answer:

Step-by-step explanation:

y + 4 = 14(x - 12)

y + 4 = 14x - 168

y = 14x - 168 - 4

y = 14x - 172

The slope is 14
The y-intercept is ( 0 , -172 )

A 3-foot rain barrel is being filled from the runoff of a roof. The barrel has already collected 2.75 feet of water. For
every additional inch of rainfall into the barrel, the level of water in the rain barrel rises by 0.75 inch.
What is the y-intercept of the linear model representing the change in height of water, in inches, based on the
rainfall, in inches?

Answers

ssssssssssssssssssssssssssssss

Plz help me give 13 point it’s timed helpplz

Answers

Answer:

yyyy

Step-by-step explanation:

Other Questions
Can anybody help plzz?? 65 points Find the slope of the line passing through the pair points (7,6) and (-7,-6) While planning the biggest university party of the year, you are writing down what is already done. Complete the list, writing sentences using the verb estar and the past participle.Modelo: colgar las decoraciones Las decoraciones ya estn colgadas. 1. invitar a los estudiantesEnter Text2. confirmar el entretenimientoEnter Text3. organizar la lista de msicaEnter Text4. preparar la comidaEnter Text Please help taking testWill give brainlest What are some events that took place in Washington D.C on Veterans Day? What is the meaning or significance of these event? Which of the following is the best hypothesis?O A. Why does salt water boil at a higher temperature thanpure water?O B. Americans use too much salt when they cook.O C. If I add salt to water, it will cause the boiling point to increase.D. It's better to cook pasta in salt water than in pure water. Write the antecedent of each pronoun in the following sentences.1. All the kittens escaped from their box.2. The boys ran quickly, but they still missed the bus.3. Daniel, are you ready to go?4. John and I performed our skit.5. Both students said they would volunteer.6. Becky, the operator is paging you.7. Max will score, if he hurries.8. Sheila asked her teacher for help.9. Robin and I returned our costumes promptly.10. Several ran their fastest times of the season. A square has a side length 9 cm. What is its area? A square has an area of 9 cm2. What is its side length? This is used to track a users browser and download history with the intent to display popup banner ads that will lure a user into making a purchase.Select one:AdwareWormPhishingMalware 58:27The sequence below represents Marisas fine at the library for each day that she has an overdue book:$0.50, $0.65, $0.80, $0.95, $1.10, ...Which equation represents Marisas library fine as a function of a book that is n days overdue?f(n) = 0.15nf(n) = 0.50nf(n) = 0.15n + 0.35f(n) = 0.50n + 0.15 Convert 85km/hr to cm/s(factor label conversion) An electronics store sells DVD players and cordless telephone. The store makes a $75 profit on the sale of each DVD player (d) and a $30 profit on the sale of each cordless telephone (c). The store wants to make a profit of a least $255.00 from its sales of DVD players and cordless phones. Write an inequality to model this situation.Find an example to show how this situation could happen and one example showing how it could NOT happen. Make sure to justify your answer. 4.It takes a lady 3 days to wash the windowsinside and out. Her husband can do the jobin 4 days. How fast can they do it together? Determine the solution for x^2-3x-28=\> 0 Who was Oklahomas most successful Socialist candidate for governor, winning more than 20 percent of the vote in 1914? A. Eugene Debs B. Theodore Roosevelt C. Fred Holt D. William Jennings Bryan please help me im dying help Using the following thermochemical equation, calculate how much heat is associated with the decomposition of 4.00 moles of NH4Cl. NH3(g) + HCl(g) NH4Cl(s) H = -176 kJA) 5000B) 740C) 407D) 704 1. Alison has 3 skirts, 2 shirts, and 2 pairs of shoes. How many different combinations ofskirt, shirt, and shoes can she choose? PLEASE HELP I WILL GIVE BRAINLIEST!!What best describes the difference between the below images, where the car is in the second image is further along the road? Hint: Look at the XYZ directional gizmo at top right side. Look at the colors. When was Olympia founded?1827184518481850BEING TIMED PLS PLS PLS HELP THIS IS AN ALGEBRA 2 QUESTION