Question

Grammar Part. Underline the verbs that tell us that the sentences are in the Present Perfect Continuous tense.1. They have been studying for two hours.2. He has been teaching in this school for five years.3. Ritesh has been watching the film since 3 o'clock.4. She has been working in this organization since 2010.5. I have been reading the Harry Potter series for a month now.​

Answer 1

Answer:

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Explanation:

know that each expression is made up of terms. A term can be a signed number, a variable, or a constant multiplied by a variable or variables. Each term in an algebraic expression is separated by a positive sign or a negative sign.

For example, in the expression 4x

2

y

2

−4x

2

y

2

z

2

+z

2

, the terms are: 4x

2

y

2

,−4x

2

y

2

z

2

and z

2

.

Also, when a term is made up of a constant multiplied by a variable or variables, that constant is called a coefficient.

For example, in the expression 4x

2

y

2

−4x

2

y

2

z

2

+z

2

, the coefficients are: 4,−4 and 1.

Hence, the terms are 4x

2

y

2

,−4x

2

y

2

z

2

,z

2

and the coefficients are 4,−4,1.