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3 years ago

How do I express four less than the square number

Mathematics

2 answers:

netineya [11]3 years ago

5 0

Answer:

x^2 - 4

Step-by-step explanation:

Number squared (x)^2

less than is a subtraction term

put them together you get x^2 - 4

kobusy [5.1K]3 years ago

4 0

Answer:

X^2-4

Step-by-step explanation:

Let x be our number.

So we square the number because it says 4 less than the square number.

So we have x^2.

Now, we have to take 4 less than that.

So x^2-4 is our answer.

(This can also be factored because it is in the form a^2-b^2)

(This can be rewritten as (x+2)(x-2))

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Classify the following expression by degree and term: x2y − 7xy xyz x 2nd degree polynomial 7th degree polynomial 2nd degree tri

lidiya [134]

The expression is a 3rd-degree polynomial with 4 terms.

Given

The polynomial is;

$\rm x^2y + 7xy + xyz + x$

<h3>What is polynomial?</h3>

A polynomial is an expression consisting of coefficients and variables which are also known as indeterminates.

The highest degree exponent term in a polynomial is known as its degree.

Then,

The total power of the exponent is 3.

The highest degree exponent is 3 then, the expression is a 3rd-degree polynomial with 4 terms.

Hence, the expression is a 3rd-degree polynomial with 4 terms.

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2 years ago

Max wants to start a farm to grow mussels. He needs to determine the best environment for growing them. He is going to try two d

Kipish [7]

Answer:

1.) Subject = 18 Aquariums each with mussel

2.) Factors(levels) = temperature(3 levels) and salinity (2 levels)

3.) Treatment = High salinity high temperature ; High salinity low temperature ; High Salinity medium temperature ; Low salinity Low temperature ; Low salinity, High temperature ; Low salinity Medium temperature.

4.) Response variable = size of mussel produced

5.) Random assignment will help prevent the introduction of bias and confounding variable.

6.) For replication purpose, Each of the six treatment could be assigned to 3 tanks, so 3 aquarium for one treatment.

7.) By doing such we might be a possible location based effect which might might creep into our research. Hence, causing a spurious relationship.

8.) A control experiment whereby no salt is added will cause the mussel to die as they require salt to survive.

Step-by-step explanation:

Answers are Explanatory.

4 0

3 years ago

What is 0.17 repeating as a simplified fraction?

Nutka1998 [239]

Answer:

If you multiply 0.17 by 100 , you get 17 . Similarly, if you divide 17 by 100 , you get 0.17 . Thus, the fraction form for 0.17 is 17100 .

Step-by-step explanation:

4 0

4 years ago

The perimeter of a parallelogram is 72 meters. The width of the parallelogram is 4 meters less than its length. Find the length

Sidana [21]

Answer:

length = 20 mt

Width = 16 mt

Step-by-step explanation:

Let the length of the field be x

width of the field be y

Hence formula of the perimeter is given as

P=2(x+y)

P=72(given)

72=2(x+y)

Dividing both sides by 2 we get

x+y=36---(A)

Also given that width of the parallelogram is 4 meters less than its length

Hence

y=x-4

or x-y=4 ---(B)

Adding A and B

2x=40

x=20

y=x-4

y=20-4=16

Hence length = 20 mt

Width = 16 mt

3 0

4 years ago

Select the coordinates of two points that are on the line x=5

Dmitry_Shevchenko [17]

You can choose the coordinates of any two points on the vertical line where x=5.
So for the coordinates, you need a y value for both. Since the points have to be on that line, you already know that the x value has to be 5.

4 0

3 years ago