Answer:
alex has 25 counters
Step-by-step explanation:
8x4=32
32-7=25
25 is your answer
Answer:
21
Step-by-step explanation:
To evaluate, substitute w = 6 into the expression, that is
15 + w = 15 + 6 = 21
Answer:
Original value: 5.69
Value (with 10 decimal places): 5.69
The vertex angle of any triangle of the dodecagon formed by radii and a side is 360/12=30º.
The half-length of the base of the triangle is sin15=0.2588 approx.
Since there are 12 sides there are 24 half-sides in the perimeter=6.2117.
parenthesis first -3-11.5
then subtract so your answer is -14.5
