Given the diagram below what is cos (45degree)?

Can any one me with the answers to these questions asap?

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

Which of the following scenarios demonstrates an exponential decay