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3 years ago

In the Pythagorean equation, a and b represent the legs that create the right angle.

Mathematics

2 answers:

mina [271]3 years ago

6 0

Answer:

True. A^2 + B^2 = C^2

Alla [95]3 years ago

5 0

True. A^2 + B^2 = C^2

A and B are the legs, C is the hypotenuse

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The number of vibrations n n per second of a nylon guitar string varies directly with the square root of the tension T T and inv

emmasim [6.3K]

Answer: $T=40.96\ KgF$

Step-by-step explanation:

We know that:

$n$ : The number of vibrations per second of the nylon guitar string.

$T$ : Tension.

$L$ : The length of the string.

Since $n$ varies directly with the square root of the $T$ and inversely with $L$ , the equation has the following form:

$n=k*\frac{\sqrt{T} }{L}$

Where "k" is the constant of variation.

Knowing that when $n=15$ and $L=0.6$ , $T=256$ , we can find the value of "k":

$n=k*\frac{\sqrt{T} }{L}\\\\L*n=k\sqrt{T}\\\\\frac{L*n}{\sqrt{T}}=k\\\\k=\frac{(0.6)(15)}{\sqrt{256}}\\\\k=0.5625$

Finally, in order to find the tension when the length is 0.3 meters and the number of vibrations is 12, you need to substitute these values and the value of "k" into $n=k*\frac{\sqrt{T} }{L}$ and solve for $T$ :

$12=(0.5625)\frac{\sqrt{T} }{0.3}\\\\\frac{12(0.3)}{(0.5625)}=\sqrt{T}\\\\(6.4)^2=T\\\\T=40.96\ KgF$

8 0

3 years ago

Solve this equation 3x+5-x=x-3

QveST [7]

I think the answer is x=-8
you are basically simplifying both sides of the equation..then isolating the variable

8 0

3 years ago

Question 6<br> 2x + 34 = 4(x + 5)<br> I

Elan Coil [88]

Answer:

x=29/5

Step-by-step explanation:

$2x + 34 = 4(x + 5) \\ 34 - 5 = 4x - 2x \\ 29 = 2x \\ x = \frac{29}{2}$

plz......

mark it as a brilliant answer

7 0

3 years ago

Round these prices to the nearest pound.

amm1812

£1100, £3, £88, £376, £300, £44

7 0

3 years ago

What is the solution set for 9x2-25 = 0?

Ronch [10]

Answer:

I believe is A.

Step-by-step explanation:

9x^2 - 25 = 0

9x^2 = 25

x^2 = 25/9

x = 5/3

3 0

3 years ago