Determine whether these biconditionals are true or false.

a. 2 + 2 = 4 if and only if 1 + 1 = 2.

b. 1 + 1 = 2 if and only if 2 + 3 = 4.

Rachel runs 2km to her bus stop, and then rides 4.5 km to school. On average, the bus is 45 km/h faster than Rachel's average running speed. If the entire trip takes 25 minutes, how fast does Rachel run?

How do you convert h=6-0.6j into y=mx+b formula

Find all values of x (if any) where the tangent line to the graph of the function is horizontal Y = 2+8x-x^2

Which algebraic expression is in simplest form? Explain 5x - 4 + 6y or 4x + 8 - x or 3 (7+y) or 12n - n

You would more likely give your friends a number of blocks to go east and then a number of blocks to go north. what would these two numbers be? enter the number of blocks to go east, followed by the number of blocks to go north, separated by a comma.

The length of a rectangle is 3 inches more than its width. If the perimeter is 42 inches, find the dimensions of the rectangle.

What 2 numbers have 2,3, and 5 as factors

Evaluate f (x) = 3^x + 4 when x=2 A. 10 B. 13 C. 18 D. 36

How many moles of LiOH are in 67.03g?

What is 20x^2-40x-25