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ivolga24 [154]
3 years ago
10

1 - x2 -y2 +2xy answer me fast plsss

Mathematics
2 answers:
kompoz [17]3 years ago
7 0

Answer:Factor by grouping.

(x+3y)(x−5y)

Step-by-step explanation:

AlladinOne [14]3 years ago
4 0

Answer:

-(1+x-y)(x-y-1)

Step-by-step explanation:

since both terms are perfect squares, factor using the difference of squares formula

a2 - b2 = (a+b) (a-b) where a = 1 and b= x-y

-(1+x-y)(x-y-1)

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What makes a graph proportional
Alla [95]

Answer

as x increases y increases and the ratio between them always stays the same

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLY
Bogdan [553]

The mean absolute deviation of the scuba diver’s depth over the entire 25 min is 2.4 meters

<h3>What is mean absolute deviation?</h3>

It is defined as the measure to show the variation in data set in other words between the mean and every data value, the distance known as the MAD.

We have depths of the scuba diver, in meters

{−9, −18, −16, −13, −14}

We know the formula for the mean absolute deviation:

\rm MAD = \dfrac{\sum |x-X|}{n}

Here n is total number of observation

x is the elements in the data set

X is the mean of the data.

n = 5

x = -70/5 = -14

∑|x-X| = 12

MAD = 12/5 = 2.4 meters

Thus, the mean absolute deviation of the scuba diver’s depth over the entire 25 min is 2.4 meters.

Learn more about the mean absolute deviation here:

brainly.com/question/10528201

#SPJ1

6 0
2 years ago
C is the midpoint of AD. B is the midpoint of AC. BC = 12. What is the length of AD
kvasek [131]
48 I would believe is the answer
6 0
3 years ago
Read 2 more answers
2 vertical buildings are 42 metres apart and the shorter building is 135m high. The angle of elevation from the top of the short
ipn [44]

Answer:

Step-by-step explanation:

base=42 m

height=h=?

base angle θ=60°

tan 60=h/42

h=42tan 60=42√3≈72.75 m

height of taller building=135+42√3 m≈135+72.75≈207.75 m≈208 m

6 0
3 years ago
Great tennis players use Hexrackets. There if you use a Hexracket, you are a great tennis nyer.
34kurt

Answer:

The conclusion is invalid.

The required diagram is shown below:

Step-by-step explanation:

Consider the provided statement.

Great tennis players use Hexrackets. Therefore, if you use a Hexracket, you are a great tennis player.

From the above statement we can concluded that Great tennis players use Hexrackets. But it may be possible that some people who use a haxracket are not great tennis player.

Therefore, the conclusion is invalid.

The required diagram is shown below:

8 0
3 years ago
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