Evaluate the expression r3 + 4r2 s for r = – 3 and s = 2.
1 answer:
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Answer:
27 / (4x⁶y⁸)
Step-by-step explanation:
When raised to a power, multiply the exponents.
When dividing, subtract the exponents.
Move negative exponents to the denominator.
Step-by-step explanation:
Follow my steps. Sorry im bit untidy .
Follow these 1°,2°,3°
Answer:
When the plane makes its turn to fly southeast, it makes a 45º angle at point a, making angle abc also equal to 45º.
Line ab is the 2 miles southeast the plane flies.
Line ac = line cb
sine (45º) = opposite / hypotenuse = cb / 2
.70711 = cb / 2
cb = 1.41422 miles = line ac
Line cs = 3 - 1.41422 = 1.58578
Line x^2 = cs^2 + cb^2
Line x^2 = 2.5146982084 + 2.0000182084
Line x^2 = 4.5147
Line x = 2.1248
Step-by-step explanation:
