Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the identity below to square your number without using a calculator.
(x-y)^(2 )=x^(2 )-2xy+y^2
CHOOSE ONE value, A, B, or C to use for the following:
A) 47 B) 32 C) 53

Rewrite your 2-digit number as a difference of 2 numbers:


Use the identity above to square your number without using a calculator:

Step-by-step explanation:

32²=(40-8)²

=40²-2(40)(8)+8²

=1600-640+64

=1664-640

=1024

also 32²=1024

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

what shape is