3 years ago

What is the discriminant of the quadratic equation 0 = –x2 + 4x – 2?

Mathematics

1 answer:

kifflom [539]3 years ago

4 0

Recall that the discriminant is b² - 4ac
So, substitute, b = 4, a = -1 and c = -2

Δ = 16 - 4(-1)(-2) = 16 - 8 = 8

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lara31 [8.8K]

Answer:

$f=\frac{9c}{5}+32$

Step-by-step explanation:

$c=\frac{5\left(f-32\right)}{9}$

Switch sides:

$\frac{5\left(f-32\right)}{9}=c$

Multiply both sides by 9:

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Divide both sides by 5:

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3 years ago

Y = 3x +5 Y = 4x - 2 What is Y?

irga5000 [103]

X is 6 and y is 23 :)

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2 years ago

2x - 5 > -9 solve inequality

n200080 [17]

Answer:

x>-2

Step-by-step explanation:

first you want to get rid of all of the numbers on the left so you can only be left with 2x>-4 then you decide both sides by 2x because you only want to be left with one x and once you divide you will be left with x>-2

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1 year ago

Factor the expression. 2x + 6

Naily [24]

Answer:

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2(+3)

Solution

2(+3)

3 0

2 years ago

Read 2 more answers

More Algebra hw-- :/

grin007 [14]

Answer:
-11x=-66
x=6

Explanation:
-11x-12=-78
1) Add 12 to both sides.
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2) Divide both sides by -11.
x=-66/-11
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Hope this helps! Please leave a thanks and brainliest answer if you can :)

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2 years ago