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4 years ago

One of Marianna's homework problems was to solve the equation below.

Mathematics

1 answer:

Strike441 [17]4 years ago

3 0

Answer:

<h2>Marianna is incorrect because x2</h2><h2>2x13 can be factored into two binomials</h2>

Step-by-step explanation:

ax^2+bx+c = 0

x=−1+√14 or x=−1−√14

discriminant=56

completing square x=−1+√14 or x=−1−√14

Now, we can solve each term for

x=-2 she is incorrect

x(x+2)=0

Now, we can solve each term for

x=0

- no other work needed,

and

x+2=0

x+2-2=0-2

x+0=-2

<h3>Brainliest please!</h3>

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Find the complete factored form of the polynomial -44a^3 + 20a^6

irakobra [83]

Answer:

$4a^3(5a^3-11)$

Step-by-step explanation:

→Take out the GCF (Greatest Common Factor). The GCF is $4a^3$ because both $-44a^3$ and $20a^6$ can be divided by it, like so:

$-44a^3+20a^6$

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3 years ago

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4 years ago

Read 2 more answers

Given a radius of 9 inches, estimate the length of arc s to the nearest hundredth.

malfutka [58]

The question is incomplete, here is the complete question:

Given a radius of 9 inches intercepted by the central angle 60°. Estimate the length of arc 'S' to the nearest hundredth.

<u>Answer:</u> The arc length of the circle is 9.42 inches

<u>Step-by-step explanation:</u>

To calculate the length of the arc, we use the formula:

$S=2\pi r(\frac{\theta}{360})$

where,

S = arc length = ?

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3 years ago

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marissa [1.9K]

Answer:

6 ft and 8 ft

Step-by-step explanation:

let x be the length of one leg then (x + 2) is the other leg.

Using Pythagoras' identity in the right triangle, that is

x² + (x + 2)² = 10² ← expand left side and simplify

x² + x² + 4x + 4 = 100 ( subtract 100 from both sides )

2x² + 4x - 96 = 0 ( divide all terms by 2 )

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Equate each factor to zero and solve for x

x + 8 = 0 ⇒ x = - 8

x - 6 = 0 ⇒ x = 6

But x > 0 ⇒ x = 6

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