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3 years ago

Factor the polynomial below. x2 + 6x + 9

Mathematics

2 answers:

Citrus2011 [14]3 years ago

8 0

Answer:

(x-3) is the factor of polynomial x2 + 6x + 9

and it's zero is -3

Step-by-step explanation:

by solving it we get ;

$x {}^{2} + 6x + 9$

$x {}^{2} + 3x + 3x + 9$

$x(x + 3) + 3(x + 3)$

$(x + 3) {}^{2}$

now, equating it with 0, we get

$(x + 3) {}^{2} = 0$

$x + 3 = 0$

$x = - 3$

so, the factor is ( x + 3 )

AnnZ [28]3 years ago

3 0

Answer:

Step-by-step explanation:

x²+6x+9=(x+3)²

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What is the approximate length of VU? What is the length of the midsegment parallel to VU?

anastassius [24]

u is at (1,-2)

V is at (-6,-6)

using distance formula it is about 8.06 long

so Answer is C

6 0

3 years ago

Rosemarie drove from Philadelphia, Pennsylvania, to Pittsburgh, Pennsylvania. The distance between Philadelphia and Pittsburgh i

Nat2105 [25]

Answer:

The speed was $61\frac{miles}{hour}$

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

s------> the speed in miles per hour

d ----> the distance in miles

t ----> is the time in hours

we know that

$s=\frac{d}{t}$

we have

$d=305\ miles$

$t=5\ hours$

substitute

$s=\frac{305}{5}$

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7 0

3 years ago

Which is the slowest rate? a. 2,983 km in 5 hr

Eddi Din [679]

Answer:

C. 3,094 km in 12 hr

Step-by-step explanation:

we need to find kilometer per 1 hour so

2983/5=596.6 kilometers per hour

5,193/7= 741.857142857 km per hour

3,094/12=257.833333333 km per hour

1,784/3=594.666666667 km per hour

now which number is lowest

third one

Have a wonderful day! ask me if you have more questions

7 0

3 years ago

What additional information do you need to prove triangle NOP = triangle QSR?

Wewaii [24]

After careful consideration i think I have an answer...
So if you notice, These two triangles are a reflection of each other.
Now even though these two triangles equal one another, we still have to consider the fact that they are different. (one side is the opposite of another)
So lets just name all the sides that equal each other.
∠N = ∠Q
NO = QS
QR = NP
PO = SR
∠S = ∠O
∠P = ∠R

(by the way i'm going to be saying {the reflective side} every time i want to refer to the side with the two lines :P) - so bare with me.

So therefore this would mean that ∠P = ∠S would be false, since one angle is from the side that is reflected and the other isn't. Makes sense?

So lets look over at the answers...

A.) PN = SQ
For this answer choice, PN is on the non reflective side, while SQ is on the reflective side. Soooo... This answer choice is wrong.

B.) NO = QR
NO is part of the unreflective side, while QR is part of the reflective side.
Therefore this answer is wrong. They must be part of the same side.

C.) ∠P = ∠S
∠P is on the unreflective side, while angle ∠S is on the reflective side.
There fore this answer is also wrong.

D.) ∠O = ∠S
Now ∠O is on the reflective side while ∠S is on the reflective as well.
There fore this answer is correct .

YOUR ANSWER IS.
D.) ∠O = ∠S

Good Luck! :)

6 0

3 years ago

A professor gives a statistics exam. The exam has 100 possible points. The scores for the students in the second classroom are a

Vesna [10]

Answer:

N = 9

M = 87.11

Step-by-step explanation:

According to the situation, the data provided and the solution are as follows

The scores for the student in the classroom is

= 88 88 92 88 88 72 96 88 84

The different student's number of scores is 9

The solution of new n and M is shown below:-

Sample size (n) = 9

Sample mean (m) is

$= \frac{Sum\ of\ all\ data\ values}{Sample\ size}$

= $\frac{88 + 88 + 92 + 88 + 88 + 72 + 96 + 88 + 84}{9}$

$= \frac{784}{9}$

= 87.11

3 0

3 years ago