Answer:
Step-by-step explanation:
Subtract the numerator exponent from the denominator exponent.
I need help ,,, and tahnks☺
2 answers:
We can use the Pythagoras theorem:
leg 1² + leg 2² = hypotenuse²
(4x)² + (3x)² = 20²
16x² + 9x² = 400
combine like terms
25x² = 400
divide by 25 on both sides to isolate x²
25 and 25 cancels out
x² = 16
Take square root on either sides tot find the value
x = +/- 4
Cancels -4 because lengths cannot be in negative.
x = 4
check:
(4 × 4)² + (3 × 4)² = 20²
(16)² + (12)² = 400
256 + 144 = 400
400 = 400
leg 1² + leg 2² = hypotenuse²
(4x)² + (3x)² = 20²
16x² + 9x² = 400
combine like terms
25x² = 400
divide by 25 on both sides to isolate x²
25 and 25 cancels out
x² = 16
Take square root on either sides tot find the value
x = +/- 4
Cancels -4 because lengths cannot be in negative.
x = 4
check:
(4 × 4)² + (3 × 4)² = 20²
(16)² + (12)² = 400
256 + 144 = 400
400 = 400
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