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3 years ago

Please answer this correctly

Mathematics

2 answers:

Dennis_Churaev [7]3 years ago

7 0

We are given 4 cards.

2 numbers are even and 2 numbers are odd.

So, 2/4 or 0.5 are odd

0.5 * 100% = 50%

Therefore, the answer is 50%.

Best of Luck!

Mila [183]3 years ago

3 0

Answer:

50%

Step-by-step explanation:

not even = 2 nums

pnoteven = 2 ÷ 4 × 100

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3 years ago

Tan(-212°)=____. 1. -cot 32° 2. tan 32° 3. cot 32° 4. -tan 32°

Marrrta [24]

Answer:

4. $-\tan 32$ °

Step-by-step explanation:

Given:

The tangent of the angle is given as:

$\tan (-212\°)$

Since the angle is negative, it means that it is measured in the clockwise direction as angles measured in clockwise direction are negative and that measured in counter clockwise directions are positive.

-212° when measured from counter clockwise direction will be equal to:

$-212\°(Clockwise)=360-212=148\°(CCW)$

Therefore, $\tan (-212\°)$ = $\tan (148\°)$

Now, we have the identity for tan as:

$\tan(\pi-\theta)=-\tan \theta$

Here, $\theta=148\°$

Therefore,

$-\tan (148\°)=\tan(180-148)\\-\tan(148\°)=\tan(32\°)\\\textrm{Multiplying both sides by -1, we get:}\\-1(-\tan(148\°)=-1\times \tan(32\°)\\\\\tan(148\°)=-\tan(32\°)$