Apokah jenis fungsi bogi \[ \mathbf{y}=-\frac{20}{\mathbf{x}} ? \] (gunokan huruf keal sohojo)

Jimmy decides to mow lawns to earn money. The initial cost of his electric lawnmower is \( \$ 350 \). Electricity and maintenance costs are \( \$ 6 \) per lawn. Complete parts (a) through (c). a) Formulate a function \( C(x) \) for the total cost of mowing \( x \) lawns. \( C(x)=\square \)

Escribe "V" si es verdadero o "F" si es falso: a. Los seres del reino fungi están constituid eucariotas.

20. A \( 350.0 \mathrm{~cm}^{3} \) sample of helium gas is collected at \( 22.0^{\circ} \mathrm{C} \) and 99.3 kP . What volune wald this gas sooser at STP?

5. Aplique o Princípio de Indução Finita para demonstrar que para \( n \geq 1 \) vale: a) \( 1^{2}+2^{2}+\cdots+n^{2}=\frac{n(n+1)(2 n+1)}{6} \) b) \( 1+3+5+\cdots+(2 n-1)=n^{2} \) c) \( 1 \cdot 2+2 \cdot 3+3 \cdot 4+\cdots+n \cdot(n+1)=\frac{n(n+1)(n+2)}{3} \) d) \( 1^{2}+3^{2}+5^{2}+\cdots+(2 n-1)^{2}=\frac{n\left(4 n^{2}-1\right)}{3} \)

Carlie's stock rose by \( 1 \frac{5}{8} \) points in trading today. Let \( Y \) represent yesterday's stock price at closing and \( T \) represent today's stock price at closing. i) What is a formula that correctly relates \( Y \) and \( T \) ? ii) If yesterday's closing price was \( 32 \frac{13}{16} \), what was today's closing price? i) \( Y=T+1 \frac{5}{8} \) ii) Today's closing price was \( 34 \frac{7}{16} \). i) \( T=Y+1 \frac{5}{8} \) ii) Today's closing price was \( 33 \frac{7}{16} \). i) \( T=Y+1 \frac{5}{8} \) ii) Today's closing price was \( 34 \frac{7}{16} \). i) \( Y=T+1 \frac{5}{8} \) ii) Today's closing price was \( 33 \frac{7}{16} \).