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Bezzdna [24]
3 years ago
7

What is the discriminant of the quadratic equation 0 = –x2 4x – 2? a.–4 b.8 c.12 d.24

Mathematics
1 answer:
MrMuchimi3 years ago
4 0
X^2 - 4x + 2
d = b^2 - 4ac, where a = 1, b = -4 and c = 2
d = (-4)^2 - 4 x 1 x 2
d = 16 - 8
d = 8
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*click image* <br><br> I need both of them answered it’s fine if you only answer one tho
AURORKA [14]

Answer:

y=4x+5 is 4 and 4/1

the next one is y=8x+3

hope this helps

Step-by-step explanation:

6 0
3 years ago
X/2-y+6=0 slope intercept form
Over [174]
X/2-y+6=0
     +y        +y
x/2+6=y
8 0
3 years ago
4a + (–6b) – 3a + 2b factor the expression
Gemiola [76]

Answer:

a−4b

Step-by-step explanation:

Combine Like Terms:

=4a+−6b+−3a+2b

=(4a+−3a)+(−6b+2b)

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have a great day

5 0
3 years ago
Find f¹(x) for the function<br> f(x) = -4.<br> 2<br> f¹(x) = [?]x + [ ]
g100num [7]

Answer:

{f}^{ - 1}(x)  = 2x + 8

Step-by-step explanation:

f(x) =  \frac{x}{2}  - 4 \\ \\  y = \frac{x}{2}   - 4 \\ \\ y =  \frac{x - 8}{2}   \\  \\ x = 2y + 8 \\  \\  {f}^{ - 1} (x) = 2x + 8

4 0
2 years ago
Did I do it right????
den301095 [7]
The answer to number 1 is 3 or 1

The answer to number 2 is 4+x < 6
4 0
2 years ago
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