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Damm [24]
2 years ago
10

Which expression is not a polynomial?

Mathematics
1 answer:
Nezavi [6.7K]2 years ago
7 0

Answer:

D.

Step-by-step explanation:

A term in a polynomial is a single number or a number multiplied by any number of variables. A polynomial is a sum of terms.

The only thing that can be done with variables in a polynomial is to multiply them by numbers or other variables. In a polynomial, you cannot: divide by a variable (have a variable in a denominator), have a root of a variable, have a log of a variable, have a variable as an exponent, etc.

All expressions are polynomials except for D. In D., the negative exponents mean division by variables.

You might be interested in
Evaluate the expression- 2(y+1)for y=2
kiruha [24]

Answer:

-6

Step-by-step explanation:

-2 ((2) + 1)

-2 (3)

= -6

Hope it helped

6 0
3 years ago
Which phrase describes the algebraic expression 10 + w ?
grin007 [14]

Answer:

The correct answers would be A

Step-by-step explanation:

I know this because I asked my mom and said it a question to my homework

3 0
3 years ago
Please answer all the questions if possible, due 2morrow... also, is what I did for the top answer right?
geniusboy [140]
1a. It does say y is "less than 8", which means 7, 6, 5, 4, etc. So it should be y < 8, with the arrow going from 8 to the the left. 
Everything else in 1 is correct. 

For 2, you're just picking out which of the given numbers satisfy the inequality, for example
a. 14, 15, 16 are solutions. 13 is not because it is less than 14.

3. Same thing as 1 
8 0
3 years ago
A class of 165 students went on a field trip. They
navik [9.2K]

answer

the number of buses is 3

the number of cars is 6

Step-by-step explanation:

total number of the students=165

total number of the vehicles=9

let x represent the number of cars

let y represent the number of buses

x+y=9...........equation 1

(the number of the cars plus the number of the buses= to the number of vehicles )

5x + 45y=165.......equation 2

(the number of student the car can hold plus the number of student the bus can hold= to the total number of the student in a class)

x+y=9.......eqn 1

5x +45y=165....eqn 2

make x the subject of the formula in eqn 1

x+y=9

x= 9-y

substitute for x= 9-y in eqn 2

5(9-y)+45y=165

45-5y+45y=165

-5y+45y=165-45

40y=120

divide both sides by 40

40y÷40=120÷40

y=3

since y represent number of buses,the numbet of bus is 3

Also,substitute for y=3 in eqn 1

eqn 1 is x+y=9

x+3=9

x=9-3

x=6

therefore,the number of cars is 6.

3 0
3 years ago
one pack 30 pencils is 7.97 and the other pack of 12 pencils is 4.77 which is the better buy? and why?
olga_2 [115]
The price of a pencil in a pack of 30 pencils
7.79/30
The price of one pencil in that pack is about 0.266

The price of a pencil in a pack of 12 pencils
4.77/12
The price of one pencil in that pack : 0.3975

0.266>0.3975
One pack of 30 pencils is cheaper
6 0
2 years ago
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