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Nady [450]
10 months ago
11

Use the discriminant to describe the roots of

Mathematics
1 answer:
balu736 [363]10 months ago
3 0

The quadratic equation x² - 5x - 4 = 0 has two real roots as 41 > 0.

<h3>What is a quadratic equation?</h3>

A quadratic equation is an algebraic equation of degree two.

We know in a quadratic equation ax² + bx + c = 0, The discriminant D is        b² - 4ac.

If D > 0 the quadratic equation has two real roots.

If D = 0 the quadratic equation has one real root.

If D < 0 the quadratic equation has no real roots.

∴ In x² - 5x - 4 = 0,

Discriminant D is b² - 4ac.

= (-5)² - 4.1.(-4).

= 25 + 16.

= 41.

∴ D > 0 and the quadratic equation has two real roots.

learn more about discriminant here :

brainly.com/question/15884086

#SPJ1

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kenny6666 [7]

f(x).g(x) = (x^2+6x)(2x^3) = 2x^5+12x^4

f(0).g(2) =(0^2+6*0)(2*2^3) =0*16=0

f(1).g(1)=(1^2+6*1)(2*1^3)=(1+6)(2*1)=7*2=14

g(x).g(x)=(2x^3)(2x^3)=2*2*x^3*x^3=4x^6

4 0
3 years ago
This problem says 2/3 plus 5/6 but how would you draw the 5/6
kramer
Change 3 to 6 and 2 to 4

Now Do

3/6 + 5/6 = ?

? = 8/6

8/6 = 1 2/6

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3 years ago
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ASAP<br><br> AND HOW DID YOU GET THE ANSWER<br><br> ( WILL MARK BRIANIST)
Luda [366]

Answer: 11/24

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Convert 1/12 to 2/24

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If I did a poor job explaining I can help more in the comments.

3 0
3 years ago
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The sum of Alex's height and Ben's height is 130 inches. Subtracting Alex's height from Ben's height yields one-third of Ben's h
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Ben is 97.5 inches tall.

Alex is 32.5 inches tall.

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3 years ago
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To find the product of 42.12 and 10³, move the decimal point in 42.12 __ places to the right because 10³ has __ zeros.
Yakvenalex [24]
<h3>To find the product of 42.12 and 10^3,  move the decimal point in 42.12 3 places to the right because 10^3 has 3 zeros</h3>

<em><u>Solution:</u></em>

Given that,

\text{ product of } 42.12 \text{ and } 10^3

Which means,

42.12 \times 10^3

Here, the exponent of 10 is positive ( which is 3)

When the exponent is positive, we have to move the decimal point to right

When you multiply a number by a power of 10, ( 10!, 10^2, and so on ) move the decimal point of the number to the right the same number of places as the number of zeros in the power of 10

Here, exponent is 3 , therefore move the decimal point right 3 places in 42.12

Therefore,

42.12 \times 10^3 = 42120

7 0
3 years ago
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