Answer:
1.) 9.9
2.) 15.6
Step-by-step explanation:
1.) Consider triangle AEH
AEH is a right angle triangle as ∠AEH = 90°
AH is the hypotenuse of the triangle.
Applying Pythagorean theorem

substituting values as given in the question:

∴ EH≈9.9
2.) Consider triangle CDF
CDF is a right angle triangle as ∠CDF = 90°
CF is the hypotenuse of the triangle.
Applying Pythagorean theorem

substituting values as given in the question:

∴ DF≈15.6
Answer:
The answer is 4th point
Step-by-step explanation:
√(4j⁴/9k⁸) = (√4j⁴)/(√9k⁸)
= [2(j⁴)^1/2]/ [3(k⁸)^1/2]
= 2j²/3k⁴

We need to solve for x
To get x alone we need to remove the denominator 5
To remove denominator 5 we multiply by 5 on both sides

2x = 50
2x means 2 times x
2 is multiplied with x. so to remove 2 we divide by 2

So x= 25