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3 years ago

Which expressions are polynomials?

Mathematics

2 answers:

Oduvanchick [21]3 years ago

6 0

Answer:

Step-by-step explanation:

Definition : The expression that can have constants (like 4), variables (like x or y) and exponents (like the 2 in $y^{2}$ ), that can be combined using addition, subtraction, multiplication and division, but no division by a variable and a variable's exponents can only be 0,1,2,3,... etc. and it can't have an infinite number of terms.

1. 6 + p

Being p be a variable this equation is polynomial

2. x – 1

Since x-1 has variable and constant so according to definition it is a polynomial

3. 8x−z3

According to definition it is a polynomial

4 . $5x^{2}-x\sqrt{}$

Since has root so it is not a polynomial .

deff fn [24]3 years ago

6 0

1)6 +p
2) x-1
3) 8x-z3

4 has a root so it is not a polynomial

You might be interested in

What is the value of x in the diagram? у X X-20

dem82 [27]

Answer:

y= 35⁰

x = 55⁰

Step-by-step explanation:

total angle of triangle is 180⁰

therefore we can equate:

x + (x-20) + 90 = 180

2x + 70 = 180

x = 55⁰

total of x and y is equal to 90⁰ since it is a right angle;

x + y = 90

x = 55⁰

55⁰ + y = 90

y = 35⁰

8 0

3 years ago

Charlie colors 45% of the total shapes on her paper. she colors 18 shapes .

love history [14]

Hey there!

Here is your answer:

The proper answer to this question is "40".

Reason:

40/x=100/45
(40/x)*x=(100/45)*x - we multiply both sides of the equation by x
40=2.22222222222*x - we divide both sides of the equation by (2.22222222222) to get x
40/2.22222222222=x 
18=x 
x=18

45% of 40=18

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

3 0

4 years ago

(1) 4p²q : 10pq²

tiny-mole [99]

Answer: (1) 2p: 5q.

(2) 3:10.

(3) 5:6.

Step-by-step explanation:

To find : Ratio

(1) 4p²q : 10pq²

$=\dfrac{4p^2q}{10pq^2}\\\\=\dfrac{2p^{2-1}}{5q^{2-1}}\\\\=\dfrac{2p}{5q}$

i.e. Simplified ratio of 4p²q : 10pq² is 2p: 5q.

(2) 9 months : 2½ years

1 year = 12 months

$2\dfrac{1}{2}\text{years}=\dfrac{5}{2}\text{years}\\\\=\dfrac{5}{2}\times12=30\text{ months}$

Now, 9 months : 2½ years = $\dfrac{9\text{ months}}{30\text{ months}}=\dfrac{3}{10}$

Hence, Simplified ratio of 9 months : 2½ years is 3:10.

(3) 5 m : 600 cm

1 m = 100 cm

So, 5m = 500 cm

Now, 5 m : 600 cm = $\dfrac{500\ cm}{600\ cm}=\dfrac{5}{6}$

Hence, Simplified ratio of 5 m : 600 cm is 5:6.

7 0

3 years ago

Ann spent $7.74 on oranges. If each orange costs $0.36 per pound, how many pounds of oranges did Ann buy?

solmaris [256]

Set variables for the quantities we want to find. Let x = number of applesLet y = number of oranges Next, we use these variables to write equations that describes the whole story. Since the total price is $7.75 and each type of fruit has their own price, we can say 0.40x + 0.35y = 7.55 The other equation will represent the total number of fruits bought all together, as Mark mentioned. Once you have those equations, you solve the system using substitution and elimination methods to solve for the variables x and y.

4 0

3 years ago

Read 2 more answers

Can someone help? Identify the coefficients and degree of each item

wariber [46]

Answer:

1. 4, -2

2. 3, 0

3. 1, -8

4. 0, 5

5. 2, 5

Step-by-step explanation:

the highest raised to power in a term is called degree

eg: -2x^4

here -2 is always 0

but x is 4

so the highest is 4

the number found in the term is called coefficient

eg: -2x^4

here the only number seen is -2

so the only number is -2

this is same for all term

HOPE THIS IS HELPFUL FOR YOU

3 0

3 years ago