what is 1 2/3-(-5 2/3)?
PLEASE answer
10 POINTS

Answer:

9

Step-by-step explanation:

The formula for (a + b)^2 expands out to: a^2 + 2ab + b^2. In the case of this problem, a equals x and b equals 3. We can substitute to get:

(a + b)^2 = a^2 + 2ab + b^2

(x + 3)^2 = x^2 + 2(x)(3) + (3)^2

(x + 3)^2 = x^2 + 6x + 9

So, the missing term is 9.

Another way to do this is to multiply (x + 3)(x + 3) since it's the same thing:

(x + 3)(x + 3)

x^2 + 3x + 3x +9

x^2 + 6x + 9

By solving this way, you get the same answer.

Answer:

It would be 9.

Step-by-step explanation:

To do this, lets expand the equation (x+3)^2 by turning it into:

(x+3)(x+3)

Now, lets try something called the FOIL method. This is where all of the terms of the equation are multiplied in the order:

1) First

2) Outer

3) Inner

4) Last

So in (x+3)(x+3), each of the first parts of each parentheses box are x's, and x times itself equals x^2 so:

x^2 + ? + ? so far.

Next, with the Outer & Inner parts, they would be x * 3 and 3 * x. With this, you would get 3x and 3x. These can be added to get 6x, the middle part of the equation.

x^2 + 6x + ? so far.

Lastly, for the answer. Time to do the last part of each parentheses box, you would get 3 * 3, which gives you 9.

x^2 + 6x + 9.

Answer:

Step-by-step explanation:

Owen's goal is to drink 6060 ounces of water each day for three days. On the first day, he met \frac{2}{3} 3 2 ​ of his daily goal, on the second day he met \frac{4}{5} 5 4 ​ of his daily goal, and on the third day he only met \frac{1}{4} 4 1 ​ of his daily goal. During the three-day period, how many ounces of water did he drink altogether? Use paper to show your work.

Answer:

4

Step-by-step explanation:

multiplication is repeated addition

Answer:

4

Step-by-step explanation:

9+9+9+9= 36

36/9= 4

4×9= 9+9+9+9

Answer:

I think its 2/2 or 1????

Answer:

9

Step-by-step explanation:

3×2² -2×2 +1 = 3×4-4+1=12-4+1=9

Answer:

9

Step-by-step explanation:

Substitute x = 2 into the expression

3(2)² - 2(2) + 1

= 3(4) - 4 + 1

= 12 - 4 + 1

= 8 + 1

= 9

Answer:

15

Step-by-step explanation:

the hypotenuse is the longest part of a right triangle, while the other sides are called the legs.

Answer:

15

Step-by-step explanation:

the measure of the hypotenuse is 15

thank you

Answer:

13.7113092008

Step-by-step explanation:

hope this helps

Answer:

As a decimal form it is 13.71130920... If you are looking for another form just tell me I am happy to help

Step-by-step explanation:

Answer:

B,D,E

Step-by-step explanation:

Answer:

Thanks for The question the guy above his answer is correct thanks for looking I got 100% on the test

Step-by-step explanation:

Answer:5 1/2

Step-by-step explanation:I took the test

Answer:

Fastest train: 65 mph

slowest: 55 mph

Step-by-step explanation:

Divide 480 by 4

=120

To find average speed divide 120 by 2

=60

call the speed of the slowest train y.

y+(y+10)=120

2y=110

y=110/2=55

y+10=65

Hope this helps!! :)

Answer:

7y=4y +9(corresponding sides of congruent triangle)

or,7y-4y=9

or, 3y=9

or,y=9/3

so,y=3

now

ST=7y=7×3=21

again

TU=4y+9=4×3+9=21

hope this will help you more

Answer:

She has 42 pieces of wood each of 1 inch of length.

Step-by-step explanation:

Amy has 42 inches piece of wood.

She has to cut an inch.

After cutting pieces of inch each she counts the pieces to be 42.

Mathematically

Total length / unit lenght = Number of pieces

42 inches/ 1 inch= 42 pieces.

She has 42 pieces of wood each of 1 inch of length.

Answer:

B) 50

Step-by-step explanation:

<b = x

All angles in a triangle add up to 180 so:

x + 90 + 40 = 180

x + 130 = 180

x = 180 - 130

x = 50

Answer:

I think its 60

Step-by-step explanation:

I hope i did good! Hopefully i helped!

Answer:

31

Step-by-step explanation:

Hope this helped

Answer:

Slope: 5, Y-intercept: 150

Step-by-step explanation:

=> Slope = Change in y / Change in x

Change in y = +35

Change in x = +7, therefore;

Slope = 35 / 7

Slope = 5

=> Y-intercept is the y-value where x = 0, therefore;

Y-intercept = 150

Hope this helps!

Answer:

i can sill confirm it is Slope: 5, Y-intercept: 150

Step-by-step explanation:

Answer:

y = k/x

k = 45

y = 45/x

Step-by-step explanation:

y varies inversely as x

y = k/x

y = 5 when x = 9

y = k/x

5 = k / 9

Cross product

5 * 9 = k

k = 45

Constant of proportionality, k = 45

y = 45/x

Answer:

Step-by-step explanation:

First, convert the equation into slope-intercept form: y > -3x + 5

Second, place a point on (0,5). You can do this by starting at the origin and counting up by 5. This is your y-intercept.

Third, start from your y-intercept and move down 3 and right 1. Draw a point. Keep doing this until you hit the end of the graph.

Fourth, start from your y-intercept and move up 3 and left 1. Draw a point. Keep doing this until you hit the end of the graph.

Then, connect your dots by making a dashed line.

Finally, Shade above the line.

Answer: it's a linear function

The linear function is. S(t) = 50,434 + 675t

The function is increasing

Step-by-step explanation:

I just said this question and I got it right

Answer:

the answer is 30 10x3 is 30

Step-by-step explanation:

it says 3 times as many so yeah!

Answer: 80/3

Step-by-step explanation:

Answer:

From Triangles...

The sum of two opposite interior angles = the exterior

so

3x-2 + 9x + 7 = 14x - 19

12x +5=14x -19

Collecting Like terms

2x= 24

x= 12°.

For "m"

Sum of angles in a triangle=180°

So

180 - (19x-3+9x-2) = m

180 -(28x -5) =m

m= 180 - 28x + 5

m=185 - 28x.

Now

Since sum of everything in a triangle = 180

185 - 28x + 9x -2 + 19x - 3 = 180

185 -28x + 28x -5= 180

185-5=180

180=180

Answer:

Rational

Step-by-step explanation:

A rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0. Since 7.12467 is an integer or decimal it's rational

Answer:

D.) 8:00

It’s a geometric problem so when plugged in you get answer D

Answer:

3

Step-by-step explanation:

m

Answer:After Ivan puts in $585 each month in just one monthes it would be a total of $905 dollers. After Teresa puts $820  in her new bank account  she puts in $35 per month just one month she has $940 In her bank account.

Step-by-step explanation: Sorry if it is wrong