Answer:
-8-15
Step-by-step explanation:
he already owed his friend $8 so he had -8, he was in debt. then he borrowed more money putting him deeper in debt -15
Answer:
d + 24 = 55
Step-by-step explanation:
hope this helps have a great day
Answer:
9 inches deep
Step-by-step explanation:
12 inches - 3 inches = 9 inches
Answer:
52
Step-by-step explanation:
If u=(a1i+b1j)=(a1,b1) and v=(a2i+b2j)=(a2,b2), then the dot (scalar) product is:
u.v=(a1,b1).(a2,b2)
a1b1+a2b2
u.v=(8,-7).(3,−4)
(8)(3)+(-7)(−4)
24+28=52