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vodka [1.7K]
3 years ago
10

What is the discriminant of the quadratic equation -x^2-x-8=0?

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

-31

Step-by-step explanation:

See Image Below

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Write the expression in complete factored form. p(b + 9) - (b + 9) =
kvasek [131]

Answer:

(p-1)(b+9)

Step-by-step explanation: Both terms are a(b+9), but one term has a=p and the other is -1. So add them and get the answer

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3 years ago
Solve each system by elimination. 3x - 2y = 1 2x + 2 y = 14
Paha777 [63]
Add 3 and 12 , cancel -2 y+2y and and add 14 and 14
3x-2y=14
12x+2y=14
15x=28
Divide both sides by 15
X=28/15
3x 28/15 -2y=14
Y=-21/5
(X,y)=28/15, -21/5
3x 28/15 -2x(-21/5)=12x 28/15 +2x(-21/5)=14
14=14=14
(x, y)=(28/15, -21/5) is the answer
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3 years ago
Evaluate the expressions. ​
frutty [35]

Answer:

(-6/7)^0=1

-(2)^0=-1

Step-by-step explanation:

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7 0
3 years ago
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Write an equation of the line that passes through (2,-4) and (0,-4)
Arte-miy333 [17]

y = mx + b

To find the slope(m), you use the slope formula:

m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

You plug in the points into the equation.

m = \frac{-4 - (-4)}{0 - 2}

m = \frac{-4+4}{0-2} = \frac{0}{-2} =0

The slope is 0

y = 0x + b

Any number multiplied by 0 is 0. So:

y = b

To find b, you plug in the y value of either of the points.

-4 = b

Your equation is:

y = -4 (This is a horizontal line)

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3 years ago
James has 36 tulips. He must put the same number of tulips in each vase. How many tulips could be in each vase
k0ka [10]
1,2,3,4,6,9,12,18,36



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4 years ago
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