Why must there atleast be two lines on a plane

F left parenthesis x right parenthesis equals 9 x cubed plus 2 x squared minus 5 x plus 4 and g left parenthesis x right parenthesis equals 5 x cubed minus 7 x plus 4.

The piano measures 19/4 feet long does it fit in a 5 foot long space?

Keisha needs to make a total of 20 deliveries this week. So far she has completed 6 of them. What percentage of her total deliveries has Keisha completed?

As a sales person at trading cards unlimited Justin receives a monthly base pay plus commission on all that he sells if he sells $500 worth of merchandise in one month he is paid $410 if he sells $900 of merchandise in one month he's paid $498 find

What is the slope of the line 4x + 20y = 5?

The displacement, d, in millimeters of a tuning fork as a function of time, t, in seconds can be modeled with the equation d = 0.6 sin (3520rt). What is the frequency of the tuning fork? A, 1/3520 Hz B. 1/1760 Hz C. 1760 Hz D. 3520 Hz

4x-10y=-16 and - 7x+20y=23 elimination

At the beginning of the year 2002, Sarah put $250 in a savings account. The bank agrees to pay Sarah 3% interest on her total savings at the end of each year including the interest added to the account.

The length of a rectangle is 3 inches more than its width. If the length and width are each increased by 2 inches, the perimeter of the rectangle becomes 66 inches. If x is the width of the rectangle, find its length and width.

A loan of $1000 is to be paid back, with interest, at the end of 1 year. Aft er 3 months, a partial payment of $300 is made. Use the US Rule to determine the balance due at the end of one year, considering the partial payment.