The sides of a square are reduced by 2 inches. the new area is 20 square inches. Set up and solve an equation to find the original length of the square.
USE THE SQUARE ROOT PROPERTY!!!!!

Answer:

1) x-3=0

4) 6=2x

6) x²=9

Step-by-step explanation:

x-3=0

x=3

----

1+x = 2

x = 2-1

x = 1

----

9-x=3

9-3=x

6=x

----

6=2x

6/2=x

3=x

----

x/5=3

x=3*5

x=15

----

x²=9

x=±3

These are the value of x solved for each equations. If you have any questions, feel free to ask.

Answer:

1. yes

2. no

3. no

4. yes

5. no

6. yes

Step-by-step explanation:

D

"What is a variable?

A variable is used in a Fair Test. A variable is any one of the elements of the test which could be changed. They can change the outcome of an experiment.

In a fair test, only one variable is allowed to be manipulated – all others have to be kept the same,or “controlled”."

Answer:

28.8

Step-by-step explanation:

hi friend the answer is 28.80$ hope that helps you

Answer:

A, B, C, E, and F

To solve this problem, you should make sure to find the equation first. Start by doing rise/run with your two given points on the graph. From the point (-1,1) you rise 4 and then run 16 over to the point (3,2). That gives us a slope of 4/16 which can then be simplified to 1/4. That means that letter F tells us the equation of the line is y= 1/4x + 5/4.

From there you want to check your points, (3,2) and (-1,1). The first number is always x and the second number is always y. So you plug the point numbers into the equation we just found to see if they work. In the photos I inserted are how to do this step.

Once you have checked your points and you know for sure they're solutions, that gave you letters A and B. Since the point (1, 3/2) is also given in one of the answers we should check that point as well. (Also done in one of the photos) Since the point came out correctly that gives us letter C and also tells us there is more than 2 solutions. This means that letter E is also correct.

Hope this helped!

Answer:

B. I and IV only

Step-by-step explanation:

You replace the x with the numbers in the parenthesis. So for I it would be:

f(0) = 4(0) - 5  -> 0 - (-5)  -> -5

g(-4) = 3(-4) +7 -> -12 + 7  -> -5

You solve each one and if your answer matches with each other, your answer is right.

If you did this with II and III, you wouldn't get the same answers.

For IV it would be:

f(6) = 4(6) - 5  -> 24 - 5  -> 19

g(4) = 3(4) + 7  -> 12 + 7  -> 19

Answer:

i think its the third one

Answer:

x<-1/10

Step-by-step explanation:

7x+2 < -3x+1

+3x +3x

10x+2 < 1

-1 -1

10x+1 < 0

-1 -1

10x < -1

x < -1/10

Answer: y=6n+m

Step-by-step explanation:

Answer:

C. 16.2 cm

You're welcome

Answer:

All answers here: https://www.cimt.org.uk/projects/mepres/step-up/mepanswers.pdf

Answer:

There are 4 possible answers:

1.) Pair 1 and 3

2.) Pair 3 and 4

3.) Pair 4 and 2

4.) Pair 2 and 1

Step-by-step explanation:

Supplementary angles are 2 or more angles who's sum add up to 180°. If two angles make a straight angle they are supplementary.

Hope this helps!

Answer:

It should be D, [tex]x^4 - 2x^3 + 7x^2 -12x - 4[/tex]

Step-by-step explanation:

Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):

x * x³ = [tex]x^{4[/tex]

x * 7x = 7x²

x * 2 = 2x

-2 * x³ = -2x³

-2 * 7x = -14x

-2 * 2 = -4

This all would add up to ⇒ [tex]x^{4}[/tex] - 2x³ + 7x² + (-14x + 2x) -4

Simplifying the parenthesis further would give the option D as the answer.

1. 109

2. 52

3. 4

4. 89

5. 111

6. 72

Answer:

20 divided by 5.^-^

Step-by-step explanation:

Answer:

The first one 20 divided by 5

Step-by-step explanation:

They split into 5 groups not groups of five

Answer:

From the Vertex B, draw a line segment up 6 units or 6 boxes and then from the same Vertex B, draw a line going either left or right 4 units. Then connect everything together it will form a right triangle.

Step-by-step explanation/ Answers

because you have 5% possibilities and a total of 100%. You divide

100 by 5 and then you get 20 so that is for question 5

for question 6 it would be 80 because 100 - 20 is 80

for question 7 it will be 40 because 20 + 20 is 40

hopes this helps

Answer:

The answer is A.

Step-by-step explanation:

Process of elimination... Its not C or D because the % distributes onto the dress cost and it only contributes to 111.79. Also, 40% of 1 is 0.6 so its not B, which leaves A...

Step-by-step explanation:The slope of AB and BC are the same.

The initial value is 60 m and the slope is 40 m/min.

Step-by-step explanation:

The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes.

See the graph attached.

Part A : If we consider two right triangles one Δ ABD and Δ BCE, where D(2,100) and E(1,60) points.

Now, those two triangles are similar and hence the slope of line segment AB will be .

Again, the slope of the line segment BC will be

Hence,  and the slope of AB and BC are the same. (Answer)

Part B : From the graph, it is clear that the initial value of the graph is 60 m and it represents that initial position of the shark i.e. at t = 0 min, the shark was at a depth of 60 m from the water surface.

The slope of the graph is 40 means the rate of change of distance from the Ocean surface of the shark with respect to time in minutes will be 40 m per min. (Answer)

Answer:

1,928,352 in cubed

Step-by-step explanation:

The volume of the cereal box is [tex]\rm 228\dfrac{3}{4}[/tex]cubic inches.

The volume of rectangular prism is given by :-

[tex]\rm Volume = Length \times Width \times Height[/tex]

Demarcus has a cereal box shaped like a rectangular prism. It measures 7 5/8 inches long, 2 1/2 inches wide, and 12 inches high.

The volume of the cereal box is determined in the following steps given below.

[tex]\rm Volume = Length \times Width \times Height\\\\\rm Volume = 7\dfrac{5}{8}\times 2\dfrac{1}{2} \times 12\\\\\rm Volume = \dfrac{7\times 8+5}{8} \times \dfrac{2\times 2+1}{2} \times 12\\\\\rm Volume = \dfrac{61}{8} \times \dfrac{5}{2} \times 12\\\\Volume =\dfrac{3660}{16}\\\\Volume=228\dfrac{3}{4}[/tex]

Hence, the volume of the cereal box is [tex]\rm 228\dfrac{3}{4}[/tex]cubic inches.

Learn more about prism here;

https://brainly.com/question/3244285

#SPJ2

Answer: B. [tex]\frac{1}{4} \pi x^{3}[/tex]

Equation: I found the answer on this link

https://www.dcs.k12.oh.us/cms/lib/OH16000212/Centricity/Domain/277/20140221144149685.pdf