use the fundamental trigonometric identities to simplify the expression. There is more than one correct form of each answer. 1 / cot^2 x + 1

A gallon of water weighs 8.354 pounds. Simon uses 11.81 gallons of water while taking a shower. About how many pounds of water did Simon use?

Name three elements that have similar chemical properties to oxygen.

Find the GCF, then factor the expression. $6 p ^ { 4 } q + p q r - 3 p r$

Where would you expect to find extrusive igneous rock? (a) Along a transform fault, (b) In the Himalayas, (c) Along the ocean floor, (d) On the coast of a continent, (e) At a continental subduction zone.

Find the product.

$$\frac { 3 x ^ { 5 } y ^ { 2 } } { 8 x y } \cdot \frac { 6 x y ^ { 2 } } { 9 x ^ { 3 } y }$$

Simplify: (83 1/3)/100

Determine the formula for the sum of cubes by dividing $a^{3} + b^{3} \ \text{by} \ (a + b)$

In which A a subset of B? A={1, 3, 7, 9, 11, 13}, B={1, 9, 13}

Graph the equation. Identify the focus, directrix, and axis of symmetry of the parabola.

$$x^2=-6y$$

Leona has 4 nickels, 6 pennies, 4 dimes, and 2 quarters in a change purse. Leona lets her little sister Daisy pick a coin at random. If Daisy is equally likely to pick each type of coin, what is the probability that her coin is worth more than five cents?Explain.

Factor the polynomials into linear factors:

$$6 x^{2}-5 x+1$$

Use a proportion to determine what percent $1,800 of the$2,500 startup cost is.

Write the formation reaction for each of the following substances. (a) $\mathrm{CH_4}(g)$, (b) $\mathrm{C_3H_8}(l)$, (c) $\mathrm{HCl}(g)$, (d) $\mathrm{C_6H_{12}O_6}(s)$, (e) $\mathrm{NaF}(s)$