Ihave the most trouble with math what’s the answer? ?

Last Option

Step-by-step explanation:

To simplify the expression you must multiply the numerator and the denominator of the fraction by the conjugate of the denominator.

If you have an expression of the form

then its conjugate will be

The result of that multiplication will be

Therefore we have the expression

By multiplying by the conjugate of the denominator we have

Step-by-step explanation:

When we have an expression in this form:

We need to multiply it by

Let's do this:

Note: we used the property  

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

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values