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nevsk [136]
3 years ago
15

I'm really stuck can someone help?

Mathematics
1 answer:
serious [3.7K]3 years ago
7 0
You got it right the yellow highlighted
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What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2? Discriminant = b2 – 4ac
navik [9.2K]
Ax^2 + bx + c = 0
x^2 + x + 2 = 0

a = 1
b = 1
c = 2

b^2 - 4ac

1^2 - 4(1)(2)
= 1 - 8
= -7

The value of the discriminant is -7.
3 0
3 years ago
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We are asked to find the length of AC, which measures 7x. Using the segment addition postulate, we can add the two given expressions for AB and BC and make it equal to the expression for AC. 
AB + BC=AC
5x+1+15=7x
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We've found the value of x, but we aren't done yet. We need to plug in the value we got for x into the expression for AC, which is 7x. Therefore, AC \Rightarrow7x\Rightarrow7(8)\Rightarrow\boxed{56}. Hope this helped and have a great day!
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4 years ago
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julsineya [31]
Answer: B
explanation:
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3 years ago
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What's the slope of a line that passes through (-12,15) and (0,4)​
Ierofanga [76]

Answer:

D. -11/12

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Simply plug in our coordinates:

m = (4 - 15)/(0 + 12)

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3 years ago
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