For 3x2 - 4x+ 1, match the following:
1. 1
constant
2.3
degree
3. x
coefficient
4. 3 x2-4 x+ 1
algebraic expression
5.2
variable

Constant: 1

Degree: 2

Coefficient : 3 and -4

Algebraic expression:

Variable : x

Solution:

Given expression is:

We have to find the constant, degree, coefficient , algebraic expression and varibale

In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number like 1, 2

In the given expression, constant is 1

The largest exponent the variable has in a polynomial with one variable

In the given expression, largest exponent is 2

Thus degree of polynomial is 2

The coefficients are the numbers that multiply the variables or letters

In , coefficients are 3 and -4

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

Here the algebraic expression is:

The letters x, y, and z are common generic symbols used for variables.

Thus the variable in given expression is x

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

60: 45 =12: 9 =4: 3 so the answer is 4: 3