What are some major resources in West and Central Africa?

Multiply.

$$\left( x ^ { 2 } + y ^ { 2 } \right) ^ { 2 }$$

$$\text{Let } X \text{ have the probability distribution }$$

$$f(x) = 1, 0 < x < 1,$$

$$f(x) = 0, \text{ elsewhere.}$$

$$\text{Show that the random variable } Y = −2 \ln{X} \text{ has a chi-squared distribution with 2 degrees of freedom.}$$

Use a ladder diagram to find the prime factorization of each number. 32

A 100 pf capacitor is charged to a potential difference of 80.0 V, and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the potential difference across the first capacitor drops to 35.0 V, what is the capacitance of this second capacitor?

Use the Binomial Theorem to find the expansions. $(x+y)^{10}$

The Sun’s emission spectrum is (a) continuous. (b) line. (c) a combination of continuous and line. (d) none of those.

Change each exponential statement to an equivalent statement involving a logarithm. $e^{x}=8$

The parametric equations of four curves are given. Graph each of them, indicating the orientation.

$$\begin{array}{l}{C_{1} : \quad x=t, \quad y=\sqrt{1-t^{2}} ; \quad-1 \leq t \leq 1} \\ {C_{2} : \quad x=\sin t, \quad y=\cos t ; \quad 0 \leq t \leq 2 \pi}\end{array} \\ \begin{array}{l}{C_{3} : \quad x=\cos t, \quad y=\sin t ; \quad 0 \leq t \leq 2 \pi} \\ {C_{4} : \quad x=\sqrt{1-t^{2}}, \quad y=t ; \quad-1 \leq t \leq 1}\end{array}$$

What are the relative advantages and disadvantages of an LCD display as compared to and LED display.

Try this in the bathtub or when you’re washing dishes: Lower a drinking glass, mouth downward, over a small floating object. What do you observe? How deep must the glass be pushed in order to compress the enclosed air to half its volume? (You won’t be able to do this in your bathtub unless it’s 10.3 m deep!)

Graph each function using transformations (shifting, compressing, stretching, and reflection). Show all the stages. $f(x)=(x+2)^{3}$

Calculate $\int {\cos (\ln x)}dx$

What geographic factors helped a large number of languages to develop in the region?