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A, E, and D are collinear. BCDE is a parallelogram.
100
Find mA
O A 51
OB 29
OC 39
O 0.58
OE 30
Question 7
Growth Mach 6 NC 2017
Zachary Hammond Roy. ID76
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Find the value of the cosine for angle a

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¯¯¯¯¯¯¯¯)?

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!