3 years ago

Sin 2x=

Mathematics

1 answer:

loris [4]3 years ago

6 0

Answer:

A,C

Step-by-step explanation:

sin 2x=sin (x+x)=sinx cos x+cos x sin x=2 sin x cos x

or =2 cos x sin x

[sinx cox=cos x sin x ]

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-2x(3x - 4) = 0 Write the equation in standard form.

Katyanochek1 [597]

Answer:

x=0

Step-by-step explanation:

First, we expand.

-2x(3x-4)=0

-6x+8x=0

2x=0

x=0

5 0

3 years ago

PLEASE ANSWER IMMEDIATELY

insens350 [35]

Binomial because it is the difference of two terms.

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4 years ago

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A concession stand offers two different soft drink specials. One special has 3 large drinks and 2 medium drinks for $15. The oth

Anarel [89]

Answer:

$3.50 large soft drink

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Step-by-step explanation:

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3 years ago

Here is Diya's work writing the expression 6 - 2x + 5 + 4x with fewer terms. Describe the mistake that Diya made.

Rom4ik [11]

Answer:

Below.

Step-by-step explanation:

This is the correct solution:

6 - 2x + 5 + 4x

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= 2x + 11.

It looks like they added unlike terms together (4x + 5) to give 9x (incorrect) then added the 4x to give 13x.

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2 years ago

Janelle and Swetha are taking a 50 question test. Janelle started after Swetha had already finished 12 questions. Janelle answer

steposvetlana [31]

Begin by finding the two equations like this:
Janelle equation: $x=2t$ .
Swetha equation: $y=\frac{5}{4}+12t$ since y = 12 when the time t = 0.
In order to find how many time it takes to Janelle in order to catches
up solve the equation: $\frac{5}{4}t+12=2t$
Solving the above equation for t we get: $t=16$
So she catches up after 16 minutes.
Compute like this: $2\times16=32$
They were on question 32 then.

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3 years ago