91Ó°ÊÓ

Find \(f(x)\) at the indicated value of \(x\). $$f(x)=\left|6-\frac{1}{2} x\right|, x=20$$

Solve each formula for the specified variable.} \(\mathrm{p}=a+b+c\) for \(c \quad\) (Perimeter of a triangle)

Find a decimal approximation of each root or power. Round answers to the nearest thousandth. $$23^{2.75}$$

Find \(f(a), f(b+1),\) and \(f(3 x)\) for the given \(f(x)\) $$f(x)=5 x$$

Approximate each expression to the nearest hundredth. $$\frac{5.6-3.1}{8.9+1.3}$$

Solve each formula for the specified variable.} \(\mathscr{A}=\frac{1}{2} h\left(b_{1}+b_{2}\right)\) for \(h \quad\) (Area of a trapezoid)

The table shows equivalent temperatures in degrees Celsius and degrees Fahrenheit. $$\begin{array}{c|c|c|c|c|c}\circ \mathrm{F} & -40 & 32 & 59 & 95 & 212 \\\\\hline^{\circ} \mathrm{C} & -40 & 0 & 15 & 35 & 100\end{array}$$ (a) Plot the data by having the \(x\) -axis correspond to Fahrenheit temperature and the \(y\) -axis to Celsius temperature. What type of relation exists between the data? (b) Find a function \(C\) that uses the Fahrenheit temperature \(x\) to calculate the corresponding Celsius temperature. Interpret the slope. (c) What is a temperature of \(83^{\circ} \mathrm{F}\) in degrees Celsius?

Solve each formula for the specified variable.} \(\mathscr{A}=\frac{1}{2} h\left(b_{1}+b_{2}\right)\) for \(b_{2} \quad\) (Area of a trapezoid)

Find \(f(a), f(b+1),\) and \(f(3 x)\) for the given \(f(x)\) $$f(x)=x-5$$

Approximate each expression to the nearest hundredth. $$\frac{34+25}{23}$$