<span>A sine function can be used to model light waves. Green light has a wave length, or period of about 510 nm. The equation that best models green light is </span><span>y= sin 510/pi theta. The answer is letter C.</span>
Answer:
503 m
Step-by-step explanation:
Let distance BC = Y
Height = X
tan(58) = X/Y
X = Ytan(58)
Y = X/tan(58)
tan(43) = X/(Y+225)
X = (Y+225)tan(43)
X/tan(43) = (X/tan(58) + 225)
X(1/tan(43) - 1/tan(58)) = 225
X(0.4474993581) = 225
X = 502.7940173
60
D>0, there are 2 distinct real roots
Explanation:
3x2+6x−2=0
a=3,b=6,c=−2
The formula for discriminant is b2−4acSubstitute the given values.
b2−4ac
(6)2−4(3)(−2)
=60
therefore, D>0, there are 2 distinct real roots
Answer:
8.75
Step-by-step explanation:
2*2+2.25+2.5=4+4.75=8.75
*assuming the smudged fraction is 1/4