Is 0.641 x 10^3 correct scientific notation

How many atoms of oxygen are in one formula unit of Ca (No3) 2?

A rectangular field has the perimeter of 772 feet. If the length is 8 feet longer than twice the width, what are the dimensions of the field?

Choose the correct transformation of the graph f (x) = x + 2 / - 5. The graph of f (x) = {x / was shifted to the left 2 units, down 5 units. The graph of f (x) = (x/was shifted to the right 2 units, down 5 units.

The net of a cube is shown. If the length of each edge of the cube is 10 cm, find the surface area of the cube.

Kent created a garden in the shape of an equilateral triangle. He wants to put a small fence around this garden. The length of one side of the garden is 8 feet. How much fence does Kent need?

What is bigger 16 deciliters or 160 liters

A bus can at most be filled with 36 passengers. If there are currently 25 passengers there already. How many passengers can be added at most? passengers

Let set A={1, 2} and B be {3,4} then AX B (Cartesian product of set A and B) is a) {1,2,3,4} b) { (1,3). (2,4) } c) { (1,3), (2, 4), (1, 4), (2,3) } d) { (3,1), (4,1)

Jared is going to plant 20 small plants around the edge of a circular garden that is 8 feet in diameter. If he spaces the plants evenly, how much distance will be between the plants? (Round to the nearest hundredth) Blank 1:

The cost c (in dollars) for he care and maintenance of a horse and carriage is C=15x+2000, where x is the number of rides. A write an equation for the revenue R in terms of the number of rides B how many rides are need to break even