2 years ago

Solve the quadratic equation by factoring. 9x^2-16=0

Mathematics

2 answers:

Sindrei [870]2 years ago

5 0

Answer:

Step-by-step explanation:

Harman [31]2 years ago

4 0

Answer:

x= +- 4/3

Step-by-step explanation:

(3x+4)(3x-4)=0

make each equation set to 0 and solve

3x+4=0

subtract 4 from both sides

3x=-4

divide both sides by 3

x=-4/3

3x-4=0

add 4 to both sides

3x=4

divide both sides by 3

x=4/3

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2 years ago

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velikii [3]

Answer:

The angle is $5.0^{0}$ .

Step-by-step explanation:

The building is 35 feet tall, and the rope is 400 feet long.Applying the trigonometric function, we have;

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