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Flura [38]
2 years ago
7

Pls help Which algebraic rule describes the transformation?

Mathematics
2 answers:
Dovator [93]2 years ago
7 0

Answer:

I think the answer is B (x, y) ➡ (x, -y)

Step-by-step explanation:

Phantasy [73]2 years ago
3 0

Answer:

the answer will be B (x,y) --> (x,-y)

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2/5 of number n is 18, find the value of n
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n= 45

Step-by-step explanation:

2/5×n=18

2n/5=18

2n/2=90/2

n=45

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stich3 [128]

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a

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Convert 11 years to hours
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Help ;-;........ ;v;
iragen [17]

Answer:

$163

Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
Please help me now ! Thank you
jarptica [38.1K]
First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now

2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4

At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real. 

Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result. 

For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196

No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.

So x^2 = -4 has no real solutions. Taking the square root of both sides leads to

x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values


5 0
3 years ago
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