Simplify n - {1 - [n - (1 - n) - 1]}.
n - 1
-n - 1
3n - 3
-3n + 3

Answers

Answer 1
Answer: n - {1 - [n - (1 - n) - 1]}          first you do - (1 - n)  [multiply -1 to 1 - n)

n - {1 - [n - 1 + n - 1]}

n - {1 - [n + n - 1 - 1]}

n - {1 - [2n - 2]}                 you do - (2n - 2)  [multiply -1 to 2n - 2)

n - {1 -2n + 2}

n - {-2n + 3}                     you do - (-2n + 3)  [multiply -1 to -2n + 3)

n + 2n - 3

3n - 3
answer
Answer 2
Answer:

Answer: the correct answer is 3n-3


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Y=-6x2 + 100x - 180x = selling price of each soccer ball
y = daily profit from soccer balls
What are the zeroes of the function? Round to the
nearest hundredth.
O 0
O 2.05
O 8.33
O 14.61

Answers

Answer:

2.05 & 14.61

The next questions answer is D.

Step-by-step explanation:

For edge

8.33 I think I’m so sorry if I get it wrong

You 495 miles from home and you are driving toward home at an average of 45mph. How long will it take to drive home if you maintain the same speed? (Hint: When you reach home, the x-value is zero.)

Answers

It will take exactly 11 hours. 495/45 = 11

Answer:

f(x)=45x

Step-by-step explanation:

if the home is 495 miles away, 11 hours would take to drive home.

f(11)=45X11=495

11x-7=3x+9 value of fg

Answers

Answer:

x=16 because when they both cross the equal to sign their operational sign changes thus u subtract n make x the subject

The answer is x=16 hope this helps

Help me find the equation for the dimensions of a window, please!

Answers

On the sheet, it's not even asking you for the dimensions.
It's just asking you to set up the equation that you would use
to find the dimensions.  That's a great way to do it, because
nobody actually needs the answers, the whole thing is only
meant to help you learn HOW to find them.
==========================================
Call the width of the window 'W' .

We know that the length is 5 feet more than the width, so the length is (W + 5).

The area is (length times width).

Area = (W + 5) times (W).

36 = (W + 5) W

36 = W² + 5W

Subtract 36 from each side:

W² + 5W - 36 = 0

That's choice-4 .


Solve the system of linear equations by graphing, round the solution to the nearest tenth.y=-0.25x+4.7
y=4.9x-1.64
The approximate solution to the system is (____,____).

Answers

For this case we have the following system of equations:
 y = -0.25x + 4.7 y = 4.9x-1.64
 When solving the problem graphically we must take into account the following:
 1) The solution of the system of equations is given by the intersection of both functions.
 2) The solution is an ordered pair of the form (x, y)
 For this case we observe that the solution is given by:
 (x, y) = (1.23, 4.39)
 Note: see attached image.
 Answer:
 
The approximate solution to the system is (1.23, 4.39)

The approximatesolution to the system is (1.23,4.39).

what is Graphical method?

Graphical method, or Geometric method, allows solving simple linear programmingproblems intuitively and visually. This method is limited to two or three problems decision variables since it is not possible to graphically illustrate more than 3D.

For this case we have the following system of equations:

y=-0.25x+4.7

y=4.9x-1.64

The above linear system equation can be solved using graph, using

1) The solution of given system of equations can be determined  by the intersecting point of equation.

2) Then the solution will be an ordered pair, form (x, y).

Now considering the above two points, the graph is attached below:

look at the intersecting point here, the x- coordinate is 1.23 and the ycoordinate is approx. 4.40.

Hence, the approximate solution to the system is (1.23,4.39)

Learn more about graph here:

brainly.com/question/10679748

#SPJ5

A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test?

Answers

to find an average you take the numbers to be averaged and add them together then You take the number and divide it by the number of numbers, in this case 4, and that gives you the average.
on this problem you want to do the opposite. you know the average she wants, an 87, so you multiply it by 4. 87*4=348. then you add the three numbers you have (88,81 and 87) and you get 256.
then you subtract 256 from 348 and you get 92. 92 is your answer to check just add 87+81+88+92=348
348/4=87
87 was the average she wanted.
Hope this helped! good luck :)