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Pre Calculus Questions & Answers

Q:
3) Suponga que el valor de una pieza de maquinaria disminuye cada año en un \( 15 \% \) de su valor original de \( \$ 120.000 \). a) Encuentre una ecuación que exprese el valor \( V \) de la maquinaria después de t años de la compra. b) ¿Cuál es la pendiente y la ordenada al origen de esta función? c) ¿Cuál es el dominio e imagen de la función? d) Interpreta el significado de la pendiente y ordenada al origen dentro del contextc del problema. e) Realiza una gráfica de esta función.
Q:
4. Tyler filled up his bathtub, took a bath, and then drained the tub. The function \( B \) gives the depth of water, in inches, \( t \) minutes after Tyler began to fill the bathtub. Explain the meaning of each statement in this situation. a. \( B(4) \) b. \( B(1)<B(7) \) c. \( B(9)=11 \)
Q:
2) Reducir \( K=\frac{20^{\circ}+509+\frac{1 \pi}{36} \text { rad }}{\frac{7}{6} r a d+5^{\circ}} \)
Q:
\( f ( x ) = \sqrt { x + 1 } \quad a = 0 \)
Q:
If vector \( v \) has a magnitude of 4 and a direction of \( 20^{\circ} \) and vector \( u \) has a magnitude of 6 and a direction of \( 85^{\circ} \), what is the \( v \cdot \mathrm{u} \) ? Round your answer to the nearest tenth.
Q:
Type your answer If vector \( v \) has a magnitude of 4 and a direction of \( 20^{\circ} \) and vector \( u \) has a magnitude of 6 and a direction of \( 85^{\circ} \), what is the \( v \cdot u \) ? Round your answer to the nearest tenth.
Q:
If vector \( v \) has a magnitude of 4 and a direction of \( 20^{\circ} \) and vector \( u \) has a magnitude of 6 and a direction of \( 85^{\circ} \), what is the \( v \cdot \mathrm{u} \) ? Round your answer to the nearest tenth.
Q:
Identify the transformations of the graph of the parent function the produce the graph of the given function \( g(x) \). Identify the asympto of the graph of \( g(x) \). \( \begin{array}{ll}\text { 1. } g(x)=3 \log (x+4)+1 & \text { 2. } g(x)\end{array} \)
Q:
trajetória da bola, em um chute a gol, descreve uma parábola. Suponl mprimento de altura \( h \), em metros, \( t \) segundos após o chute, seja dad Esboce o gráfico da função. Em que instante a bola atinge a altura máxima? Em que instante a bola atinge o solo novamente, ou seja, após instante a parábola atinge o eixo \( x \) novamente?
Q:
A trajetória da bola, em um chute a gol, descreve uma parábola. Suponha que a comprimento de altura \( h \), em metros, \( t \) segundos após o chute, seja dada por \( h \) (a) Esboce o gráfico da função. (b) Em que instante a bola atinge a altura máxima? c) Qual e a medida de comprimento da altura máxima atingida pela bola? i) Em que instante a bola atinge o solo novamente, ou seja, após o chu instante a parábola atinge o eixo \( x \) novamente? da a função \( f(x)=-2 x^{2}-4 x+6 \), responda:

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