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4 years ago

Which of the following are solutions to the equation sinx cosx = 1/4? Check all that apply.

2 answers:

N76 [4]4 years ago

8 0

The solution is <span>B. π/12+nπ

</span>proof
sinx cosx = 1/4 is equivalent to 2 <span>sinx cosx = 1/2 or sin2x =1/2
so 2x = arcsin(1/2) = </span>π/6 + 2nπ, so x = π/12+nπ

Xelga [282]4 years ago

4 0

Answer:

Its B and D.

Step-by-step explanation:

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2.5 X 10^5 divided by 1.0 X 10^10

bekas [8.4K]

Answer:

0.000025

Step-by-step explanation:

PEMDAS (Exponets first.)

10^5 = 100,000

10^10 = 10,000,000,000

rewrite

2.5 x 100,000 divided by 1.0 x 10,000,000,000

PEMDAS (multiplication next.)

2.5 x (10^5) = 250,000

1.0 x (10^10) = 10,000,000,000

rewrite.

250,000 divided by 10,000,000,000 = 0.000025

0.000025

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3 years ago

Hours worked / pay

Nadusha1986 [10]

It is c because 8x2=16 and 8x4=32 and so on

7 0

3 years ago

Sin(5x+20)

WINSTONCH [101]

Answer:

Yes.

Step-by-step explanation:

Just like normal algebra, you factor our the common factor, in this case, 5.

Thus,

$\sin(5(x + 4))$

4 0

3 years ago

Which values for x, y, and z satisfy the equation 7xy/z=28

nirvana33 [79]

Answer:

try x= 4z/y

Step-by-step explanation:

7 0

3 years ago

Which of the following inequalities represents "the car has no more than 5 gallons of gas left in the gas tank"?

MrRissso [65]

The answer is B. Hope this helps :)

7 0

3 years ago

Read 2 more answers