4 years ago

Is it 1,2,3 or 4? help please

Mathematics

1 answer:

alex41 [277]4 years ago

8 0

The answer is D y=3x+1.4

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Answer:

Step-by-step explanation:

This is asking what is A

Formula A squared + B squared = C squared

A=x

B=8

C=20

X^2+ 8^2=20^2

8 squared is 64

20 squared is 400

400-64 is 336

X*X=336 find the square root of 336 =18.3

CHECK

18.3*18.3+ 8*8=398.89 which is super close to 400

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Given f(x)=sec x and g(x)=arcsin x, what is f(g(x))?

Dominik [7]

Answer:

Option 1 is correct.

Step-by-step explanation:

Given two functions f(x)=sec x and g(x)=arcsin x

we have to find f(g(x)).

f(g(x))=sec(arcsinx)=sec A where A=arc(sinx)

As, A=arc(sinx)

⇒ $x=sin A=\frac{P}{H}$

⇒ P=x and H=1 gives $B=\sqrt{1-x^2}$

hence, $sec A=\frac{H}{B}=\frac{1}{\sqrt{1-x^2}}$

hence, $f(g(x))=\frac{1}{\sqrt{1-x^2}}$

Rationalizing, we get

$f(g(x))=\frac{\sqrt{1-x^2}}{1-x^2}$

Option 1 is correct.

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3 years ago

A=2, b=3, and c=6. Solve: a +b=

dsp73

Answer: 5

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3 years ago