What do each of these terms share in common? urbanization; tenement; labor union.

Find the volume of a sphere with a radius of 620,000 miles. Write your answer using scientific notation.

Simplify. Write the expression using only positive exponents. 21. 8ˉ² • a⁷

Which property can we use to find each unknown number? a. 365n = 365 b. 52 · 7 = 7m

Sketch the curve represented by the parametric equations x = 4 ln t and y = 1/2t^2. Eliminate the parameter and write the resulting rectangular equation.

A biased coin has a probability $p$ of resulting in a head. If the coin is tossed twice, what value of $p$ minimizes the probability that the same result is obtained on both throws?

In a recent yeat, $0.12$ of Americans downloaded a podcast from the Internet. What percent is equivalent to $0.12$?

Let

$$A = \left[ \begin{array} { r r r } { 1 } & { 2 } & { - 1 } \\ { 1 } & { 1 } & { 1 } \\ { 1 } & { - 1 } & { 0 } \end{array} \right] , \quad B = \left[ \begin{array} { r r r } { 1 } & { - 1 } & { 0 } \\ { 1 } & { 1 } & { 1 } \\ { 1 } & { 2 } & { - 1 } \end{array} \right], \quad C = \left[ \begin{array} { r r r } { 1 } & { 2 } & { - 1 } \\ { 1 } & { 1 } & { 1 } \\ { 2 } & { 1 } & { - 1 } \end{array} \right] , \quad D = \left[ \begin{array} { r r r } { 1 } & { 2 } & { - 1 } \\ { - 3 } & { - 1 } & { 3 } \\ { 2 } & { 1 } & { - 1 } \end{array} \right]$$

In each case, find an elementary matrix E that satisfies the given equation. EA = B

For any rectangle WXYZ, decide whether the statement is always or sometimes true. Draw a diagram and explain your reasoning. ∠W ≅ ∠X

Solve: 66 2/3% of 5/6 of 0.144

Multiply. Write each answer to the nearest tenth. 3.14(2.3²) (5)

Multiply. Try to recognize the type of product before multiplying:

$$(x+8)(x-8)$$

Solve each equation. a. x/2 + x/6 = 7 b. x/9 + 2x/2 = 1/3

With the baby in his arms, Mr. Greer weighed 180 pounds. Without the baby, he weighed 165 1/2 pounds. How much did the baby weigh?