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koban [17]
2 years ago
15

(3x + 2y = 7 (7x-2y = 3

Mathematics
1 answer:
sineoko [7]2 years ago
8 0
Answer for the equation by elimination

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What is the discriminant of the given equation ?<br> X^2-2x+2+0<br> a)-12<br> b)8<br> c)-4<br> d)-8
Neporo4naja [7]
∆= b^2 - 4ac

where b= -2
a=1
c=2

therefore: 2^2 - 4 x 1 x 2
= 4 - 4 x 2
= 4 - 8
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8 0
3 years ago
Kim finish reading a book and 13.5 hours. He took Javis 845 minutes to read same book. Monica read the book and 49,500 seconds.
sesenic [268]
Put it all into the same measurement unit -
Kim: 48,600 seconds. (13.5*60=810, 810*60=48600)
Javis: 50,700 seconds. (845*60=50,700)
Monica: 49,500 seconds.

Kim finished the book first.
3 0
2 years ago
42 is 150% of what number
Helen [10]

Step-by-step explanation:

the answers is 90. because 75.8

7 0
2 years ago
Read 2 more answers
Zoe wants to make a driveway.
Levart [38]
the area of land is 4.9*6.2*0.225=6.8355m^3       (6.8355m^3/0.87≈7.85   yes you have enough 












8 0
3 years ago
What is the domain of this graph?
Elenna [48]
A. Whole numbers from 0 to 10

The domain is composed of all x value on the graph. Every point is on a whole number for x.
7 0
3 years ago
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