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White raven [17]
3 years ago
15

Need help with #17 no clue what it is

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
5 0
Plug in three for x. Then do the math and that will show the proof in the answer too.
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X-2y=0 ,x²-y²=3<br>by step​
masya89 [10]

Answer:

x=2, y=1

x=-2, y = -1

Step-by-step explanation:

x - 2y = 0

x = 2y

x² - y² = 3

(2y)² - y² = 3

3y² = 3

y² = 1

y = 1 or y = - 1

x = 2 or x = -2

5 0
3 years ago
Which is greater 8.2 or 8.23
faust18 [17]
I believe 8.23 is greater because 8.2 can be 8.20 so that’s why my answer is 8.23
8 0
3 years ago
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On a coordinate plane, a line goes through (0, negative 3) and (2, 2). A point is at (2, negative 3).
Ulleksa [173]

Answer:

5/2,     5/2,     -3= (5/2)(2)+b,     -8,     y=(5/2)x-8

Step-by-step explanation:

6 0
3 years ago
Find the discrimnate of -x^2+2x-8=0
Lisa [10]

Answer:

-28

Step-by-step explanation:

6 0
2 years ago
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Given f(x) = 10 - 16/x, find all c in the interval [2,8] that satisfy the mean value theorem
Katen [24]
F(x)=10-16/x
f'(x)=16/x^2
f'(c)=16/c^2
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f(2)=10-16/2=10-8=2
f'(c)= \frac{f(b)-f(a)}{b-a} in (2,8),&#10; \frac{16}{c^2} = \frac{f(8)-f(2)}{8-2} ,&#10; \frac{16}{c^2} = \frac{8-2}{8-2}&#10;
4∈[2,8] is the required point.
8 0
3 years ago
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