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ELEN [110]
3 years ago
15

If the discrimination of equation is equal to -8, which statement describes the roots ?

Mathematics
1 answer:
kvv77 [185]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

The value of the discriminant informs about the nature of the roots of a quadratic function.

The discriminant Δ = b² - 4ac

• If b² - 4ac > 0, then roots are real and distinct

• If b² - 4ac = 0, then roots are real and equal

• If b² - 4ac < 0, then the roots are not real

Hence for b² - 4ac = - 8, then roots are not real


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\vec s(x,z)=x\,\vec\imath+z^2\,\vec\jmath+z\,\vec k

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\vec s_x\times\vec s_z=-\vec\jmath+2z\,\vec k

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\mathrm dS=\|\vec s_x\times\vec s_z\|\,\mathrm dx\,\mathrm dz=\sqrt{1+4z^2}\,\mathrm dx\,\mathrm dz

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\displaystyle\iint_Sz\,\mathrm dS=\int_0^2\int_0^{\sqrt{15}/2}z\sqrt{1+4z^2}\,\mathrm dz\,\mathrm dx=\boxed{\frac{21}2}

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Using number line what is 4-5​
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2 years ago
Harry is riding a train that goes 70 miles an<br> hour. How far will he travel is 3.5 hours?
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Find the value of c so that the polynomial p is divisible by (x+2)
alexandr1967 [171]

Answer:

The value of c is 8.

Step-by-step explanation:

When a function is divisible by a factor, it will get 0 value. So, you have to substitute x = -2 into p(x) and equals to 0 :

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3 years ago
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Setler79 [48]

Answer:

105 ft.

Step-by-step explanation:

5 x 12 = 60

So 5 feet is 60 inches.

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That makes the ridge 63 inches long.

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When the lion went back down the ridge, it traveled another 63 inches, totaling 126 inches.

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Divide 1260 by 12 to find the measurement in feet.

1260 ÷ 12 = 105

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3 years ago
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