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liraira [26]
3 years ago
9

What is this equation factored49x²-1​

Mathematics
1 answer:
Natali [406]3 years ago
5 0
The answer should be (7x+1)(7x-1)
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D because one thousand nine hundred twenty divided by 8 equals two hundred and forty
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Find the area of this figure.<br> A= cm2
soldier1979 [14.2K]

Answer:

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Step-by-step explanation:

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3 years ago
A card is picked from a standard deck of 52 cards. Determine the odds against and the odds in favor of selecting a red face card
timama [110]
<h3>The probability of picking a red face card from the deck  is (\frac{3}{26} )</h3><h3>The probability of NOT picking a red face card from the deck  is (\frac{23}{26} )</h3>

Step-by-step explanation:

The total number of cards in the deck  = 52

The total number of red( Diamond + Hearts)  face cards in the given deck

= 2 Red Queens +  2 Red jacks + 2 Red kings  = 6 cards

Let E : Event of picking a red face card from the deck

Now , P( any event)  = \frac{\textrm{The number of favorable observations}}{\textrm{Total number of observations}}

So, here P(Picking a red face card)  = \frac{\textrm{The number of red face cards}}{\textrm{Total number of cards}} =  (\frac{6}{52} ) = (\frac{3}{26})

Hence, the probability of picking a red face card from the deck  is (\frac{3}{26} )

Now, as we know P (any event NOT A)  = 1 - P(any event A)

So, P(NOT Picking a red face card) = 1 - P(Picking a red face card)

= 1 - (\frac{3}{26} ) = \frac{26-3}{26}  = (\frac{23}{26})

Hence,  the probability of NOT picking a red face card from the deck  is (\frac{23}{26} )

8 0
3 years ago
The total number of degrees in the center is 360°. If all five vertex angles meeting at the center are congruent, what is the me
11111nata11111 [884]
360 divided by 5 =72 answer is 72
3 0
3 years ago
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