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STALIN [3.7K]
3 years ago
10

What are the answers for question 1 and 2??

Mathematics
2 answers:
lukranit [14]3 years ago
7 0

Answer:

1) Answer: 3)  ~~x = -3 \pm \sqrt{7}

2) Answer: 3) 2 and -6

Step-by-step explanation:

xeze [42]3 years ago
6 0

Answer:

1) Answer: 3)  ~~x = -3 \pm \sqrt{7}

2) Answer: 3) 2 and -6

Step-by-step explanation:

1)

(x + 3)^2 = 7

x + 3 = \pm \sqrt{7}

x = -3 \pm \sqrt{7}

Answer: 3)~~x = -3 \pm \sqrt{7}

2)

2(x + 2)^2 - 4 = 28

2(x + 2)^2 = 32

(x + 2)^2 = 16

x + 2 = \pm \sqrt{16}

x + 2 = \pm 4

x + 2 = 4   or   x + 2 = -4

x = 2   or   x = -6

Answer: x = 2 or x = -6

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Pia printed two maps of a walking trail. The length of the trail on the first map is 8 cm. The length of the trail on the second
Vlada [557]
Scale :

Map 1 : Actual
1 cm   :  2 km
1 cm   :  200 000 cm          | Convert 2km to 200 000cm

Answer: The scale is 1 : 200 000 

Map 1 : Actual
1 cm   :  200 000 cm 
(x8)    :   (x8)
8 cm :  1 600 000cm

1 600 000 cm = 16 km

Answer: The length of the actual trail is 16 km

Map 1 : Map 2
8cm   :   6cm
1cm    :    0.75 cm

Answer : The scale is 1 : 0.75

Map 1 : Map 2
1    :  0.075 

3mm : 0.075 x 3 = 0.225mm

4mm : 0.075 x 4 = 0.3 mm

5mm : 0.075 x 5 = 0.375 mm

Answer: The side lengths are 0.225mm, 0.3 mm and 0.375 mm

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4 years ago
BRAINIEST PLZZZ
dusya [7]

Answer:

Give me brainliest first and i will give u the answer

Step-by-step explanation:

7 0
2 years ago
2(3x + 4) = 4x + 22 find what is x
wlad13 [49]

Answer you cheating idiot

Step-by-step explanation:

4 0
2 years ago
What makes a constant term different from a term with a variable?
Sunny_sXe [5.5K]
A constant is any number, anywhere on the number line.
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8 0
3 years ago
Read 2 more answers
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
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