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puteri [66]
3 years ago
11

One Solution, Infinite Solutions, No Solution

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0

Answer:

options?

Step-by-step explanation:

gib options

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Find a third-degree polynomial equation with rational coefficients that has roots –4 and 2 + i
ella [17]
If it has rational coefients and is a polygon
if a+bi is a root then a-bi is also a root

the roots are -4 and 2+i
so then 2-i must also be a root


if the rots of a poly are r1 and r2 then the factors are
f(x)=(x-r1)(x-r2)

roots are -4 and 2+i and 2-i

f(x)=(x-(-4))(x-(2+i))(x-(2-i))
f(x)=(x+4)(x-2-i)(x-2+i)
expand
f(x)=x³-11x+20
8 0
3 years ago
What expression is equivalent to 3x + 14 + 3x + 10?
Archy [21]
What expression is equivalent to 3x + 14 + 3x + 10.

The answer is 6x+ 24
4 0
3 years ago
11-1\2y=3+6x Solve for y
romanna [79]
Let's solve for y.

<span><span>11−<span><span>12</span>y</span></span>=<span>3+<span>6x

</span></span></span>Step 1: Add -11 to both sides.

<span><span><span><span><span><span>−1/2</span></span>y</span>+11</span>+<span>−11</span></span>=<span><span><span>6x</span>+3</span>+<span>−11

</span></span></span><span><span><span><span>−1</span>2</span>y</span>=<span><span>6x</span>−8

</span></span>Step 2: Divide both sides by (-1)/2.

<span><span><span><span><span>−1/</span>2</span>y</span><span><span>−1/</span>2</span></span>=<span><span><span>6x</span>−8/-1/2

</span></span></span><span>y=<span><span>−<span>12x</span></span>+16</span></span><span>
</span>
5 0
3 years ago
Read 2 more answers
Prove that 3(x+1)(x+7)-(2x+5)² is never positive
scZoUnD [109]

Step-by-step explanation:

3(x + 1)(x + 7) − (2x + 5)²

3(x² + 8x + 7) − (4x² + 20x + 25)

3x² + 24x + 21 − 4x² − 20x − 25

-x² + 4x − 4

-(x² − 4x + 4)

-(x − 2)²

A squared number is never negative (provided x is a real number), so -(x − 2)² is never positive.

3 0
3 years ago
Read 2 more answers
How many times greater is one hour then one miuntes
dezoksy [38]


There are 60 minutes in 1 hour

60 minutes -  1 minute = 59 minutes

One hour is 59 minutes greater than 1 minute.

Hope this helps. :)

8 0
3 years ago
Read 2 more answers
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