Find the value of k, if 3x+ky-1=0,7x-3y+3=0 are perpendicular.

Write the expression as a single natural logarithm. 2 in a - 4 in y

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.