Carl knows the required height of the volume of a cone-shaped vase he’s designing. which formula can he use to determine the radius of the vase. select the correct answer.
a. r = v/ 3πh
b. r = v /πh
c. r = 3v/ πh
d. r = ± /v πh

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c