-60 is negative so the 2 facotrs are different signs
11 is positive so therefor te positive factor is bigger than negative
list all factors and add and find which add to 11
60-1=59 nope
30-2=28 nope
20-3=17 nope
15-4=11 yep
factors are 15 and -4
Answer:£872
Step-by-step explanation:
Answer:
<h2><u><em>
a = 17°</em></u></h2>
Step-by-step explanation:
it is a parallelogram, the opposite angles are the same size
so
4a + 64 = 8a - 4
64 + 4 = 4a
68 = 4a
a = 68 : 4
a = 17