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Paha777 [63]
3 years ago
7

H=L^2/f•c solve for L

Mathematics
1 answer:
nata0808 [166]3 years ago
4 0

Answer:

±sqrt( H *f•c)= L

Step-by-step explanation:

H=L^2/f•c

Multiply each side by fc

H *fc=L^2/f•c  * fc

H *f•c=L^2

Take the square root of each side

±sqrt( H *f•c)= sqrt(L^2)

±sqrt( H *f•c)= L

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Find the length of the chord made by 3x2 - y2 = 3 and y + x – 5 = 0.
MArishka [77]

Answer:

The correct answer is "9√2 units".

Step-by-step explanation:

The given equations are:

⇒ 3x^2-y^2=3...(equation 1)

⇒ y+x-5=0...(equation 2)

According to the 2nd equation, we get

⇒ y+x-5=0

⇒              y=5-x

On substituting the value of "y" in the 1st equation, we get

⇒  3x^2-y^2=3

     3x^2-(5-x)^2=3

     3x^2-(25+x^2-10x)=3

     2x^2+10x-28=0

On taking common, we get

     x^2+5x-14=0

On applying factorization, we get

     x^2+7x-2x-14=0

   x(x+7)-2(x+7)=0

           (x+7)(x-2)=0

                        x+7=0

                              x=-7

or,

                         x-2=0

                                x=2

Now,

The points are:

(-7, 12) = (x₁, y₁)

(2, 3) = (x₂, y₂)

By using the distance formula, the length of chord will be:

= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

On substituting the values in the above formula, we get

= \sqrt{(2-(-7))^2+(3-12)^2}

= \sqrt{(9)^2+(-9)^2}

= \sqrt{81+81}

= 9 \sqrt{2} units

8 0
3 years ago
Which is the equation in standard form of the line that contains points C and D
bogdanovich [222]
B, 3x-2y=2 in standard form is y=-1-3/-2x.
3 0
3 years ago
What is the answer please
Daniel [21]

Answer:

the process by which green plants turn carbon dioxide and water into food using energy from sunlight

4 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!!! Can someone help me wit des 2 questions.
zhenek [66]

Step-by-step explanation:

1. B

2. B

8 0
3 years ago
Can someone please help?
mixas84 [53]

Answer:

C.) Solve for the varible

Step-by-step explanation:

As there is currently nothing to do other than one step, the next step would be to solve 81/9 for 9, getting the final answer of a=9.

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3 years ago
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