PLEASE HELP ME WITH ALL THOSE QUESTIONS ASAP PLEASE!!!!
2 answers:
You might be interested in
Answer:
10
Step-by-step explanation:
So we have the expression:
First, evaluate within the absolute value bars. 3 times -4 is -12. Thus:
Now, subtract:
The absolute value of -10 is positive 10. So:
And we're done!
Answer:
Height of the goalpost is 9.25 m.
Step-by-step explanation:
As per the rule of reflection in physics,
Angle of incidence = Angle of reflection
As we can see in the picture attached, both the angles (θ) are equal.
m∠ACB = m∠ECD = 90° - θ
m∠ABC = m∠ADC = 90°
Therefore, both the triangles ΔABC and ΔEDC will be similar.
And by the property of similar triangles, their corresponding sides will be proportional.
ED =
ED = 9.25 m
Height of the goalpost is 9.25 m.
