By rounding to 1 significant figure, estimate
102.2 x 4.2

ANSWER: 400

EXPLANATION:

1) 102.2 rounded to 1 significant figure = 100

2) 4.2 rounded to 1 significant figure = 4

3) Therefore, we multiply 100 by 4, which equals 400.

EXAMPLES + EXPLANATION (IF NEEDED TO UNDERSTAND MORE)

Rounding to 2 significant figures:

Rounding to 3 significant figures:

Rounding to 4 significant figures:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation: