9514 1404 393
Answer:
- incorrectly; used 1 in the division instead of -1
- incorrectly; evaluated higher powers of -1 incorrectly
Step-by-step explanation:
The result each should have obtained is ...
a +10 = 17
a = 7
Braulio's mistake was in using 1 as his divisor instead of -1. His bottom row should have been 1, 4, a-4, 1-a, a +10.
Zahra's mistake was improperly evaluating higher powers of -1. Her evaluation should have been 1 -5 +a +3 +11 = a +10.
Answer:
2. 60
Step-by-step explanation:
tan x = opp/ adj
tan 40 = x/ 72 ft
x= tan40 * 72 ft
x= 60.415 ft
E: 36 because the total degrees of a parallelogram is 360 and opposite angles of parallelogram’s are equal so the angles diagonal from the given ones are the same. So the corners are 3x, 2x, 3x, 2x. In total that is 10x. 360/10 = 36
Answer:
D
Step-by-step explanation:
It seems to be A but it's not A because the ratio of their corresponding sides is 1:2
Rest of the working in the attached file
