找到你今天要练的题。

The function \( g \) is defined by \( g\left(x\right)=7x^{-1} \). What is the value of \( g\left(8\right) \)?

The kinetic energy, in joules, of an object with mass \( 41 \) kilograms traveling at a speed of \( v \) meters per second is given by the function \( K \), where \( K\left(v\right)=\frac{1}{2}\left(41\right)\left(v^2\right) \). Which of the following is the best interpretation of \( K\left(0\right)=0 \)in this context?

The function \( g \) is defined by \( g\left(x\right)=7x^{-1} \). What is the value of \( g\left(13\right) \)?

The function \( f \) is defined by the equation \( f\left(x\right)=10x+4 \). What is the value of \( f\left(x\right) \) when \( x=7 \)?

\( m(t)=−0.0274(\frac{t}{7})^{2}+7.3873(\frac{t}{7})+75.032 \) 
The function m gives the predicted body mass \( m(t) \) in kilograms (kg), of a male giraffe \( t \) days after it was born in a wildlife reserve, where \( t\le390 \). Which of the following is the best interpretation of the statement "\( m(370) \) is approximately equal to \( 389 \)"in this context?

\( m\left(t\right)=-0.0274\left(\frac{t}{7}\right)^2+7.3873\left(\frac{t}{7}\right)+75.032 \) 
The function m gives the predicted body mass m(t), in kilograms (kg), of a male giraffe t days after it was born in a wildlife reserve, where \( t\le390 \). Which of the following is the best interpretation of the statement “ m(140) is approximately equal to 212” in this context?

The function \( f(x)=180(x-2) \) gives the sum of the interior angles, in degrees, for a polygon with x sides. What is the sum of the interior angles, in degrees, for a polygon with 35 sides?

The function g is defined by \( g(x)=18-x \) . What is the value of \( g(3) \)?

\( f(x)=x^3+8x+17 \) 
For the given function \( f \), the graph of \( y=f(x) \) in the xy-plane passes through the point (0, b), where b is a constant. What is the value of b?

The function \( f \) is defined by \( f(x)=\frac{x+16}{5} \) , and \( f(a)=-19 \), where a is a constant. What is the value of a?

The function \( f \) is defined by \( f(x)=7x^3+6 \). What is the value of \( f(2) \)?

The function \( f(x)=-30x+310 \) gives the predicted height above the ground \( f(x) \), in feet, of a model airplane x minutes after it begins to descend. What is the predicted height above the ground, in feet, of the model airplane 2 minutes after it begins to descend?