2 years ago

Please help quick

Mathematics

1 answer:

Leto [7]2 years ago

5 0

Answer:

x^2 = 9

Step-by-step explanation:

Both 3 and -3 are 9 when squared.

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djyliett [7]

Answer:

7/12.

Step-by-step explanation:

There are 12 numbers totals.

The numbers 1, 7, 11, 8, 2, 4, and 10 are not in Set Q.

There are seven of those numbers which means that the probability of a number not being in Set Q is 7/12.

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2 years ago

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I don’t understand how to do this

schepotkina [342]

Answer:

The solution is $x =0.$

Step-by-step explanation:

The equation

$\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2$

can be rewritten as

$2* sin(\dfrac{3\pi }{2} +2) =-2$

and can be further simplified to

$sin(\dfrac{3\pi }{2}+x ) =-1$ .

Now, taking the inverse sine of both sides we get:

$sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)$

$\bold{(2).}\: \dfrac{3\pi }{2} +2 =sin^{-1}(-1)$

The value of the right side on the interval $[0,2\pi)$ is

$sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o)$ ,

which makes the equation (2)

$\dfrac{3\pi }{2}+x =\dfrac{3\pi}{2}$

solving for $x$ gives

$\boxed{x = 0}$

which is our solution.

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2 years ago

Monica receives a flat rate of $25 and an hourly rate of $15 when she works. Which of the following equations represents the tot

shutvik [7]

Answer

d=25+15x I think

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3 years ago

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Anvisha [2.4K]

Answer:

4/18

Step-by-step explanation:

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2 years ago

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MakcuM [25]

D is the answer. Hope this helped.

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3 years ago

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