Which statement is correct?
A.
B.
C.
D.

Answer:

A

Step-by-step explanation:

usa test prep

Answer:

(a)

Amount of water in the first pool (in liters) = 3850 liters - 33 liters per minute * x minutes

Amount of water in the second pool (in liters) = 4370 liters - 43 liters per minute * x minutes

(b)

3850 liters - 33 liters per minute * x minutes= 4370 liters - 43 liters per minute * x minutes

Step-by-step explanation:

(a) With x being the minutes after which you want to calculate the amount of water in the pool, to calculate this amount of water you must subtract the water drained from the initial amount of water that the pool contains.

Knowing that, for example, the water from the first pool drains at a rate of 33 liters per minute, then after x minutes, the total water drained will be 33 liters per minute * x minutes. Then:

Amount of water in the first pool (in liters) = 3850 liters - 33 liters per minute * x minutes

Reasoning in the same way:

Amount of water in the second pool (in liters) = 4370 liters - 43 liters per minute * x minutes

(b)  Now want to know when the two pools would have the same amount of water.  If they have the same amount of water then you can express:

Amount of water in the first pool = Amount of water in the second pool

Replacing the expressions found in (a):

3850 liters - 33 liters per minute * x minutes= 4370 liters - 43 liters per minute * x minutes

Answer:

a. 13 min, 40 sec

b. 81 min, 6 sec

Step-by-step explanation:

Answer:

Reflexive property

Step-by-step explanation:

This property states that any real number equals itself

Example: z=z

Answer:

1267.18

Step-by-step explanation:

8.03x106=851.18

4.0x104=416

851.18+416=1267.18

Answer:

The equation for the line that is shown is: Answer choice C.

[tex]y =\frac{1}{2}x+2[/tex]

Step-by-step explanation:

From what I can see, there is several clues that can lead us to our answer by just looking at the graph:

A. Your y - intercept is where your line crosses at a point on the y - axis, so your y - intercept is:

If you do not know, the y - intercept form in slope - intercept form is the 'b' value:

[tex]y = mx + b[/tex]

[tex]b =[/tex] y - intercept

[tex]mx =[/tex] slope (m is actually the letter that represents it, but thought I might include x in it to show you from the formula)

Now that you have found your 'b' value, you can eliminate several answer choices: Answer choice B. and D.

B. Now we will see if the slope is positive or negative.

To find out whether it is positive or negative, we would have to take a look at the direction of the line, in this case, the line is going upwards to the right, meaning the slope is positive.

C. Now to find the slope:

To do this we must know the fraction like form of a slope, this would be:

(m = slope)

To determine the slope, m, it is [tex]\frac{RISE}{RUN}[/tex]

'Rise' meaning the y point and 'run' being the x point

In this case:

the line rises up 1 and runs over 2

so, m = [tex]\frac{1}{2}[/tex]

Your final answer will be:

[tex]y =\frac{1}{2}x+2[/tex]

Answer:

14 units.

Step-by-step explanation:

Because your trying to find the distance between you add the negative and positive together.

Answer:

It takes 2.4 hours to travel 480 miles.

Step-by-step explanation:

From the graph race car is moving at 100 miles in 0.5 hours. So, in 1 hour, car could travel 2*100 =200 miles per hour.

So, we can set up equation as

y= 200x.

Plug in y as 480 then solve for x.

480 =200x

Divide both sides by 200

2.4=x

So, it would take 2.4 hours.

Answer:

The height as a function of time is

h(t) = -(1/2)gt2 + v0t + h0

h(t) = -16t2 + 32t + 20

The ball reaches the ground when h(t) = 0

-16t2 + 32t + 20 = 0

Solve this quadratic equation for t.  You will get a positive solution and a negative solution.  Discard the negative solution, since time begins at t=0 at the moment the ball is struck.  Can you finish from here?

Answer:

AB and AE

Step-by-step explanation:

Answer:

soo the table isnot here but look for the one that has the nnumbers going up if its a graph the / that is the way of te numbers  but \ is going down soo aviod

if posible

Step-by-step explanation:

....

Answer:

I believe the answer is D

Step-by-step explanation:

I took the quiz on edge, the answer is D :)

Answer:

What are the available answers to choose from?

Step-by-step explanation:

Answer:

it's b, c, e

Step-by-step explanation:

Answer:

B. Yes, (4, -6) is a point of intersection because it is a solution to both equations.

Step-by-step explanation:

In order to find if a certain point exists on a line or not, we can simply substitute in the values, and see if the result is valid. Here we are given the point (4,-6), this means our x=4 and our y=-6. If this point lies on a line, then substituting in the values should result in a valid equation. Let's try the first one:

2x-y=14

2(4)-(-6)=14

8+6=14

14=14

This equation is valid which means the point (4,-6) is indeed a point on the first given line equation.

Now for the second one:

x-3y=22

(4)-3(-6)=22

4+18=22

22=22

This is also a valid equation meaning the point (4,-6) also exists on the second line equation. Since this point exists on both lines, they will intersect each other on a graph. Therefore the best answer here is B. Yes, (4, -6) is a point of intersection because it is a solution to both equations.

Hope this helped!

Answer:

7.5e+14

Step-by-step explanation:

Used a calculator

Answer:

-13p-12

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

4(6x+1) +4 =104

            -4     -4

4(6x+1) = 100

distribute

24x + 4 = 100

       -4       -4

24x = 96

x = 4

To check your work, substitute the x value into the equation.

4(6(4)+1) +4 =104

4(25) + 4 = 104

104 = 104

It is correct, one solution.

Answer:

1125 times bigger

Step-by-step explanation:

Answer:

Function

Step-by-step explanation:

If you drew a line through the graph, the line would not intercept each point on the graph more than once.

Answer:

1 5/7

Step-by-step explanation:

Step-by-step explanation:

b = -2 , a = 8 , c = -1

x= b^2 - 4ac

x = (-2)^2 - 4(8)(-1)

x = 4 + 32

x = 36

36 > 0

2 real solutions?

I'm not sure for the answer OwO

Answer: 1.25

Step-by-step explanation:

$0.80

$0.45                  (when adding 8+4 you carry the 1 from 12 to the 0s

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

 1   . 2  5

Answer:

Have a great day!

Step-by-step explanation:

1 dollar per game for 3 games would cost 3 dollars.

20 subtracted by 3 is 17.

17 divided by 4 is 4.

The number of shoes they can rent is 4.

Hope this Helps!

Answer:

$135 each

Step-by-step explanation:

Since they plan to pay in 4 equal payments and the total is $540, you'd divide 540 ÷ 4 and it will give you $135

Answer:

135

Step-by-step explanation:

540/4=135

hope this helps :3

if it did pls mark brainliest

Answer:

(3+1/2,3+6/2)

(4/2,9/2)

(2,4.5)

Step-by-step explanation:

it may help you to understand

Answer:

protons and neutrons

Step-by-step explanation:hope this helps

Answer:

x = 5 or x = 5 + 2 i or x = 5 - 2 i

Step-by-step explanation:

Solve for x:

x^3 - 15 x^2 + 79 x - 145 = 0

Hint: | Factor the left-hand side.

The left hand side factors into a product with two terms:

(x - 5) (x^2 - 10 x + 29) = 0

Hint: | Find the roots of each term in the product separately.

Split into two equations:

x - 5 = 0 or x^2 - 10 x + 29 = 0

Hint: | Look at the first equation: Solve for x.

Add 5 to both sides:

x = 5 or x^2 - 10 x + 29 = 0

Hint: | Look at the second equation: Solve the quadratic equation by completing the square.

Subtract 29 from both sides:

x = 5 or x^2 - 10 x = -29

Hint: | Take one half of the coefficient of x and square it, then add it to both sides.

Add 25 to both sides:

x = 5 or x^2 - 10 x + 25 = -4

Hint: | Factor the left-hand side.

Write the left hand side as a square:

x = 5 or (x - 5)^2 = -4

Hint: | Eliminate the exponent on the left-hand side.

Take the square root of both sides:

x = 5 or x - 5 = 2 i or x - 5 = -2 i

Hint: | Look at the second equation: Solve for x.

Add 5 to both sides:

x = 5 or x = 5 + 2 i or x - 5 = -2 i

Hint: | Look at the third equation: Solve for x.

Add 5 to both sides:

Answer: x = 5 or x = 5 + 2 i or x = 5 - 2 i

Answer:

c

Step-by-step explanation:  since shes running 8 meters a second you would divide 100 meters by 8 meters

Answer:

70 degrees Fahrenheit

Step-by-step explanation:

monday = friday * 2

monday = 35 * 2

monday = 70

Answer:

[tex]\displaystyle y=\frac{1}{2}x-2[/tex]

Step-by-step explanation:

The equation of the line in slope-intercept form is:

y=mx+b

Being m the slope and b the y-intercept.

Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

The points are (-6,-5) and (-4,-4), thus:

[tex]\displaystyle m=\frac{-4+5}{-4+6}=\frac{1}{2}[/tex]

Knowing the value of the slope, the equation of the line is:

[tex]\displaystyle y=\frac{1}{2}x+b[/tex]

The value of b can be found using any of the points in the equation and solving for b. Let's pick the point (-6,-5):

[tex]\displaystyle -5=\frac{1}{2}(-6)+b[/tex]

Operating:

-5=-3+b

Solving:

b=-2

The equation of the line is:

[tex]\boxed{\displaystyle y=\frac{1}{2}x-2}[/tex]

Answer: What is your question?

Step-by-step explanation: