Question

The reciprocal of 7-​ 2​ is _____.
5. The Standard form of 0.0000021 is _____.
6. Common factors of 2x, 3x2​ ​ and 4 is _____.
7. Using identities, evaluate: 992​ ​.
8. Using identities, evaluate: 78 x 82.
9. Express the following in usual form: 1.0001 × 109​
10.Find Value of : (3–​ 1​ + 4–​ 1​ + 5–​ 1​) 0​
11.Simplify and express the result in power notation with positive exponent:
(-3)4​ ​ x ( 5 ) 4 3
12.Factorize : a2​ ​ + 8a + 16 13.Factorize : 4p 2​ ​ – 9q2​ 14.Factorize : p​ 2​ + 6p + 8

Answer 1

Answer:

2-7

that is the standard form

question is not completed

Answer 2

Answer:

hello

Step-by-step explanation:

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