Must a function that is decreasing over a given interval always be negative over that same interval?

1. P and Q are two sets. If n (P∪Q) = 45 and n (P) = 25 and n (Q) = 35, then n (P∩Q) is A) 10 B) 12 C) 20 D) 15 2. If I is the set of positive integers and P={x:x∈I, x^2<10 and x≠0}, then A) P = {0,1} B) P = {0,1,2,3} C) P = {1.

Danielle has 3/5kg of beads. She shares the beads evenly between 5 friends. How many Kilograms does each friend receive?

Cindy is saving her money to buy a new skateboard. The board she wants is a Mangoos Longboard which cost $180. She already saved $50.

Neal listed the number of flowers that bloomed in his garden each week. 2, 4, 8, 16, 32, 64, ... Which formula accurately models the sequence above if a1=2? A. an=2an-1 B. an=2an-2 C. an=2an+2 D. an=2an+1

What is the slope of the line (-2, - 3) and (6, 2)

What is the geometric mesn between 5 and 320

Determine the slope of a line with the equation 6x+2y-4=0

Which of the following statements is always true? (the first I put B, but I was not sure if I was correct) A. A parallelogram is a rectangle. B. A square is a rhombus. C. A rhombus is a square. D. A rectangle is a square.

The price of an item has been reduced by $1.09. The new sale price is $48.82. What was the original price? $47.73

The order of magnitude for the population of the world is five. true or false?