Mathematics help please!! Multiple questions - any help is appreciated!!

Mathematics

1 answer:

Cloud [144]3 years ago

7 0

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Not a hard question i just don't get it. I really need some help here, its the final

Greeley [361]

Start with

$\dfrac{1}{\sin^2(x)}=4$

Invert both sides:

$\sin^2(x) = \dfrac{1}{4}$

Consider the square root of both sides with double sign:

$\sin(x) = \pm\sqrt{\dfrac{1}{4}} = \pm\dfrac{1}{2}$

We have

$\sin(x) = \dfrac{1}{2} \iff x = \dfrac{\pi}{6}\ \lor\ x = \dfrac{5\pi}{6}$

and

$\sin(x) = -\dfrac{1}{2} \iff x = \dfrac{7\pi}{6}\ \lor\ x = \dfrac{11\pi}{6}$

5 0

3 years ago

I need help please thanks.

padilas [110]

Answer:

w =20.3

Step-by-step explanation:

i hope this helps you sorry i was late for your last question.

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3 years ago

Read 2 more answers

Point (a,a) lies on the graph of the equation 3y = 2x -4 find the value of a

Igoryamba

Substituting (x, y) with (a, a), since we have:

3a=2a-4, which means that 3a-2a=-4, that is a=-4.

So, the point is (-4, -4).

Remark: a point which lies in the graph of an equation is a solution of that equation. So x=a, y=a satisfies the equation 3y = 2x -4, which makes our substitution legitimate.

Answer: (-4, -4).

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3 years ago

Write the number in two other forms 119,000,003

andriy [413]

1--> one hundred nineteen million, three

2--> 100,000,000 + 10,000,000 + 9,000,000 + 3

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3 years ago

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Fred is 5 inches shorter than the quotient of Rick’s height and 4. let r represent Rick’s height. Write an expression that repre

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