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Rasek [7]
3 years ago
8

Which expressions are polynomials?

Mathematics
2 answers:
elena55 [62]3 years ago
8 0

Answer: 30y2+x and 30y2+x12

Step-by-step explanation:

A polynomial is an algebraic expression consisting of more than one term.

In thise sense, the algebraic expressions are composed of several elements: Terms, Coefficients, Signs, Variables and Exponents. In this case we will focus on the first.

The terms are composed of sign, coefficient, variable and exponent. The terms are separated from each other by the plus sign (+) or the minus sign (-).

For example, in the following expression:

2x-3x

We have two terms separated by the negative sign (-):

2x is the first term

-3x is the second term

Now, according to this explanation, the only two options that have more than one term to be called a polynomial (<em>poly</em> means <u>many</u> and <em>nomial</em> means <u>terms</u>) are the first two:

30y2+x and 30y2+x12

solmaris [256]3 years ago
3 0

Answer:

Option 1 and 2 are polynomials.

Step-by-step explanation:

To find : Which expressions are polynomials?

Solution :

Polynomials is defined as algebraic expressions which is form by combining numbers and variables using arithmetic operations such as addition, subtraction, multiplication, division, and exponentiation.

Now we examine the given expression,

1) 30y^2+x

The expression has got more than one term.

So, it is a polynomial.

2) 30y^2+x^{12}

The expression has got more than one term.

So, it is a polynomial.

3) 30y^2x

The expression has got just one term.

So, it is not a polynomial.

4) 30y^2

The expression has got just one term.

So, it is not a polynomial.

Therefore, Option 1 and 2 are polynomials.

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tekilochka [14]

well, for a <u>square</u> the diagonals do bisec each other, they cut each other in two equal halves.

and for a <u>rectangle</u>, they do as well, mind that a square is a rectangle with all equal sides anyway.

wait just a second, for a <u>parallelogram</u>, they do bisect as well.

hold the mayo, for a <u>rhombus</u> they do too, what the dickens is going on?

well, what do they all those have in common?

they're all quadrilaterals, but, they all have two pairs of parallel sides.

mind you that, a <u>kite</u> is also a quadrilateral, however, it doesn't have all equal sides and the diagonals do not bisect each other, and yes, it has no pairs of parallel sides.

6 0
2 years ago
Read 2 more answers
Please answer ASAP<br> Thank you so much!!!!!
Natali5045456 [20]

Answer:

g (f(0)) =   -4.5

Step-by-step explanation:

Find f(0) =   (3(0)-7)/4  = -7/4

   sub this into g(x)

          g(-7/4) = 2 (-7/4) -1 = -14/4   - 4/4 = - 18/4 = -4.5  

7 0
2 years ago
Use a formula to calculate the amount of money you would have if you invest $3000 at a rate of 5% compounded quarterly, for 3 ye
snow_lady [41]

Answer:

At 5% compounded quarterly, the amount of $3,000 would be $3,482.

At 1.5% compounded monthly, the amount of $3,000 would be $3,138.

Step-by-step explanation:

Option 1:

Rate = r = 5%

Times = b = 4

y = a (1 + r)ⁿ

For compounded quarterly the rate of interest and Number of years will be written as follows:

y = a [1 + (r / b)]ⁿᵇ

y = $3,000 [1 + (0.05 / 4]³ ˣ ⁴

y = $3,000 [1 + 0.0125]¹²

y = $3,000 [1.0125]¹²

y = $3,000 x 1.160755

y = $3,482

Option 2:

Rate = r = 1.5%

Times = b = 12

y = a (1 + r)ⁿ

For compounded monthly the rate of interest and Number of years will be written as follows:

y = a [1 + (r / b)]ⁿᵇ

y = $3,000 [1 + (0.015 / 12]³ ˣ ¹²

y = $3,000 [1 + 0.00125]³⁶

y = $3,000 [1.00125]³⁶

y = $3,000 x 1.045998

y = $3,138

Hence As compared to Option 1, Option 2 has low rate of return by $344. Therefore Option 1 should be selected.

3 0
3 years ago
Harry earns $45 a week more than Xena. George earns $18 a week less than Xena. If Harry earns the same amount in two weeks that
12345 [234]

Answer:

Xena earns $144 per a week.

Step-by-step explanation:

Harry earns - $ h

Xena earns - $ x

George earns -$ g

Harry earns $45 a week more than Xena.      h= x+45

George earns $18 a week less than Xena.     g = x - 18

If Harry earns the same amount in two weeks that George earns in three weeks

2h = 3g

So, we have the system of 3 equations:

h= x+45

g = x - 18

2h = 3g    (*)

Substitute values of h and g into equation (*)

2(x+45) = 3(x-18)

2x + 90 = 3x - 54

90+54 = 3x- 2x

x= 144  

5 0
2 years ago
What is the slope of y=7-3x
Anna [14]
The equation used above is y-intercept form. 

ex. y = mx + b

Whatever is in front of the x is your slope.

Your slope is -3
7 0
2 years ago
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