3 years ago

Is the expression 3x + 2x - 4 in simplest form?Explain.

2 answers:

dexar [7]3 years ago

7 0

No because you have to combine the 3x and 2x before it is in simplest form.

4 0

No, that is not the simplista form for that equation.

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LiRa [457]

Answer:

98°

Step-by-step explanation:

x = 53° + 45° { exterior angle of a triangle is equal to the sum of two opposite interior angles }

x = 98°

5 0

2 years ago

kenny6666 [7]

1st one , your welcome

6 0

3 years ago

Ivahew [28]

$9\cos(2t)=6\implies\cos(2t)=\dfrac23$

Using the fact that cos is 2π-periodic, we have

$\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi$

That is, $\cos(\theta+2n\pi)=\cos\theta$ for any $\theta$ and integer $n$ .

$\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi$

We get 2 solutions in the interval [0, 2π] for $n=0$ and $n=1$ ,

$t=\dfrac12\cos^{-1}\left(\dfrac23\right)\text{ and }t=\dfrac12\cos^{-1}\left(\dfrac23\right)+\pi$

4 0

2 years ago

frosja888 [35]

Answer:

Step-by-step explanation:

6 0

3 years ago

Kisachek [45]

The first statement is false. A square DOES have 4 right angles.

8 0

3 years ago