Step-by-step explanation:
(4sin0 × 4sin0) +(4sin0 × -3cos0)+ (3cos0×4sin0) +(3cos0 × -3cos0)=
16 sin²0 - 12 sin0cos0 + 12 sin0cos0 -
9cos²0
= 16sin²0 - 9 cos²0
Answer:
No, it would be 81
Step-by-step explanation:
9x9 = 81 not 18
Answer:
so soryyyyyyyyy points its for the points so sorryyyyy
Step-by-step explanation:
Look at the picture.
The perimeter of the triangle:
Answer:
20 + 0.05m
Step-by-step explanation:
The phone company charges a standard fee as well as a fee for every minute of long distance.
When no minutes are used, the cost is $20. This means that the standard fee is $20.
For 10 minutes, the cost is $20.50. The standard fee is $20. This means that for ten minutes, $0.50 is charged. For one minute, the charge is $0.05,
$20.50 - $20 = $0.50
$0.50/10 = $0.05
Dan's monthly cost is the standard fee plus the charge per minute.
20 + 0.05m