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Assoli18 [71]
3 years ago
12

Need Help!!!!

Mathematics
1 answer:
drek231 [11]3 years ago
3 0

Answer:

a.

Step-by-step explanation:

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x). the line y = -x is the point (-y, -x).

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| 3x - 5|= 11<br> How do u do this
Valentin [98]

Answer:

x= 5 1/3

Step-by-step explanation:

l3x-5l=11

3x-5=11

   +5 +5

3x=16

/3   /3

x=5 1/3

6 0
3 years ago
If two dice are rolled, what is the probability that the sum of the faces is 4, given that the first die rolled is odd?
cricket20 [7]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
The store paid $2. 70 for a book and sold it for $6. 20. What is the profit as a percent?.
bogdanovich [222]

Answer:

profit = 129.63% (to the nearest hundredth) as a percent of the price the store paid for the book

Step-by-step explanation:

Use the percentage change formula:

percent change = [ (difference between the initial value and the final value) ÷ initial value] x 100

= [ (6.20 - 2.70) ÷ 2.70 ] x 100

= [ 3.5 ÷ 2.70 ] x 100

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= 129.6296296...

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5 0
2 years ago
What is the discriminant of this equation?<br> 3x2 + 8x = 0
Likurg_2 [28]
If the 2 is an exponent, it should be marked as such.
“3x2” means 3x⋅2
“3x^2” means 3x²

3x²+8x = 0
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6 0
2 years ago
Find the area of the triangle ​
Tasya [4]

Answer:

I think it's 36 from top to bottom

Step-by-step explanation:

and pls ask a real question, or ask more with info

4 0
2 years ago
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