Write an expression to represent the water temperature after the submarine’s final dive. Then simplify the expression to find the temperature.

Answer:

B

Step-by-step explanation:

Since one inch on a map must represent a few miles in reality, B is the only logical answer to this question

Answer: x = 31

Step-by-step explanation: 13+18=31, so 31-18=13.

Answer:

x = 31

Step-by-step explanation:

-Get x alone

13 = x -  18

-add 18 to each side

x=31

Answer:

405.45

Step-by-step explanation:

405.45

yw

Answer:

Step-by-step explanation:

Answer:

The said explanation is the answer.

Step-by-step explanation:

1) Graphing the first function (y = 2x-1). When the exponents of the variables are all 1, that is there are no square, cubes, etc. the equation is a line. Then it is enough to find two points to draw it. We can calculate two points assigning a number to x and calculating the corresponding number for y. For example, when x= 0 y= 2 times 0 -1 = -1. Then the line will pass from the point (0,-1). We need a second point, we can take x=1, then y = 2 times 1 -1 = 1. The line will pass from (1,1). We can mark the two points on the plane and draw the line from these two points.  

2) Graphing the second function (y = x^2-9). A quadratic equation is of the form: ax^2+bx+c= 0. We have: y= f(x) -9. Set y=0. We have the quadratic equation: x^2-9=0. Using the algebraic identity: a^2-b^2=(a+b)(a-b). We can rewrite x^2-9=0 as x^2-3^2=0: [(x+3)(x-3)=0] - [(x+3)=0,(x-3)=0] - [x= -3, x= 3]. Hence, there are two solutions for x. So we have two x-intercepts: (-3,0) and (3,0). To find the y-intercept, set x=0: [(y = (0)^2-9=0)] - [(y=-9)]. Hence the y-intercept: (0,-9)

In conclusion, this system of equations at most has two real solutions, since two points of both functions intersect each other.

Here's the graph:

Answer:

5.9 minutes

Step-by-step explanation:

85% of 50 items is gone in 5 minutes

42.5 items = 5 minutes

50 items = x minutes

42.5 items × x minutes = 50 items × 5 minutes

x = 50 items × 5 minutes/42.5 items

x = 5.8823529412 minutes

x ≈Approximately to 1 decimal place 5.9 minutes

All your memories be gone in 5.9 minutes

Possible Answers: I searched too as I’m not very smart but I found one that happened to be multiple choice and this were the options. A. 120 miles

B. 200 miles C. 280 miles D. 360 miles E.400 miles

Step-by-step explanation: Personally I believe it should be 400.

Answer: 212.50%

Step-by-step explanation:

Answer:

x = -20

Step-by-step explanation:

just divide -4 into both sides

Answer:

Step-by-step explanation:

Hello friend!!!

The signs of the coordinates will be ( - , - )

This is because it is located in the third quadrant and the coordinates of any point on the third quadrant are ( - , - )

Hope this helps

plz mark as brainliest!!!!!!!

The signs of the coordinates should be ( - , - )

Since we know that there are 4 quadrants. In 1st quadrant, the sign is (+,+). In the 2nd quadrant, the sign is (-,+). The 3rd quadrant, the sign is (-,-), And, the fourth quadrant, the sign is (+,-),

So based on this, the above sign should be considered.

learn more about coordinates here: https://brainly.com/question/13596846

Answer:

22g+6

Step-by-step explanation:

-3(-4g-6g-2)-8g  To simplify this, we have to distribute first.

12g+18g+6-8g    Now, we can combine like terms. (I underlined the parts with the variable to make it easier to see which parts were considered like terms.)

22g+6                 This is your simplified answer!!

Hope this helps...have a wonderful day c:

Answer:

914.2947

Step-by-step explanation:

Answer:

Meters, miles, feet, centimeters

Step-by-step explanation:

Intro:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The quickest way to do this is to look how much it goes down and then how much it goes left. This is called rise over run. So the line goes 2 down then left 3 to get from one perfect point to another.

So the answer is Choice D. It went down 2 so it's negative.

Answer:

two and a half

Step-by-step explanation:

Answer: 2x - 4y = -1

Step 1: Move the variable.

2x - 4y = 4y - 1 - 4y

Step 2: Remove the opposites.

2x - 4y = -1

Answer = 2x - 4y = -1

Hope this helps!

Answer:

2x - 4y = -1

Step-by-step explanation:

Ax + By + C

A = 2

B = -4

C = -1

Answer:

a. i) Please see the  included graph of the equation $10·x + $12·y = $300

ii) The intercepts give the maximum number of either short-sleeve (x-intercept) long-sleeved (y-intercept) that can be ordered

Step-by-step explanation:

The given information are;

The cost of each short-sleeved shirt = $10

The cost of each long-sleeved shirt = $12

The amount available in the budget = $300

The equation for the total cost = $10·x + $12·y = $300

Where;

x = The number of short-sleeved shirts

y = The number of long-sleeved shirts

Rewriting the equation given in slope and intercept form, we have;

$10·x + $12·y = $300

$12·y = $300 - $10·x

y = $300/$12 - $10·x/$12

y = 25 - 5/6·x

Please find attached, the graph of the equation made with Microsoft Excel

The values of the data that can calculated to plot the graph are;

x, y

(0, 25 )

(5, 20.83 )

(10, 16.67)

(15, 12.5 )

(20, 8.33)

(25, 4.17)

(30, 0 )

The x-intercept gives the number of short-sleeve shirts that can be purchased with the $300 available budget, while the y-intercept gives the number of short-sleeve shirts that can be purchased with the $300 available budget.

The graph of the equation is shown below.

The x-intercept is at point (30,0), which means the number of short-sleeved shirts is 30 when the number of long-sleeved shirts is 0.

The y-intercept is at point (0,25), which means the number of long-sleeved shirts is 25 when the number of short-sleeved shirts is 0.

Given:

Short-sleeved shirts cost $10 each.  

Long-sleeved shirts cost $12 each.

The total budget is $300.

The given equation is:

[tex]10x+12y=300[/tex]

where [tex]x[/tex] is the number of short-sleeved shirts and [tex]y[/tex] is the number of long-sleeved shirts.

To find:

The graph of the given equation and the interpretation for the intercepts.

Explanation:

We have,

[tex]10x+12y=300[/tex]

Substitute [tex]x=0[/tex].

[tex]10(0)+12y=300[/tex]

[tex]12y=300[/tex]

[tex]y=\dfrac{300}{12}[/tex]

[tex]y=25[/tex]

So, the y-intercept is at point (0,25).

Substitute [tex]y=0[/tex].

[tex]10x+12(0)=300[/tex]

[tex]10x=300[/tex]

[tex]x=\dfrac{300}{10}[/tex]

[tex]x=30[/tex]

So, the x-intercept is at point (30,0).

Plot the points (30,0) and (0,25) on a coordinate plane and connect them by a straight line.

The x-intercept is at point (30,0), which means the number of short-sleeved shirts is 30 when the number of long-sleeved shirts is 0.

The y-intercept is at point (0,25), which means the number of long-sleeved shirts is 25 when the number of short-sleeved shirts is 0.

Learn more:

https://brainly.com/question/13859754

Answer:

Step-by-step explanation:

Midpoint formula:

Substituting values:

Missing endpoint is:

Answer:

yea what he said..........

Answer: The answer is Y=3/4x -4.5

Step-by-step explanation: You can find the slope by unsing rise over run by using the points given, you go up 3 and go to the side 4 times to get to the other point. You use tose 2 numbers and put them into a fraction you put it like this(The amount you went up/ the amount you went to the side) the you find where you cross the y-intercept which is 4.5 the you plug it into the point slope formula which is Y=3/4x -4.5

Answer:

The Answer is D

Step-by-step explanation:

I hope This helps

Answer:

True

Step-by-step explanation:

I hope this helps!

Answer:

x=1.125

Step-by-step explanation:

Answer:

1.125

Step-by-step explanation:

7x + 3 = 4x - 5x + 12

7x + 3 = -x + 12

+x           +x

8x + 3 = 12

   -3       -3

8x = 9

x = 1.125

Answer:

5*2 - 3

10-3

7

Step-by-step explanation:

mark me as the brainliest

Answer:

20 minutes

Step-by-step explanation:

Answer:

Y=5/2x -4

Step-by-step explanation:

Answer:

4 rows with 8 students in each

Step-by-step explanation:

4x8=32