# Thread: Express y correct to 2 decimal places

1. ## Express y correct to 2 decimal places

If y = 2392.25x0.65-26.2x3.82
0.062

Express y correct to 2 decimal places
Express y correct to 3 significant places
Express y in scientific notation correct to 3 significant figures.

I will appreciate if someone can help?

thank you

2. 1) 1454.88

2) 1454

3) 1.45x10^3

not sure about number 2from what you wrote as the question,

3. Hello Steven777
Originally Posted by Steven777
If y = 2392.25x0.65-26.2x3.82
0.062

Express y correct to 2 decimal places
Express y correct to 3 significant places
Express y in scientific notation correct to 3 significant figures.

I will appreciate if someone can help?

thank you
My calculator gives $y = 23465.78225806451...$

Correct to 2 d.p. this is $23465.78$
To 3 s.f. this is $23500$
In scientific notation, to 3 s.f., it is $2.35 \times 10^4$