Rectangle ABCD is dilated by a scale factor of 2 with a center of dilation at the origin. What are the coordinates of the image of point B'?
А
D
10
8
78 6
IC 4
2
-10 8 6 4 -22
2
4
6 8 10
X
-4+
-64
-8
-10

The value √10 and √15 are plotted on the number line

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¯¯¯¯¯¯¯¯)?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?