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Mama L [17]
3 years ago
14

Evaluate the expression when x=−3 xˆ2+5x+9

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0
When -3 is squared it becomes 9 then -3x5 is -15 so put that back into the equation 9-15+9= 4
ololo11 [35]3 years ago
3 0
I'm not sure but I think it's -15
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Answer quickly, please. I need this. I will give brainliest to whoever answers first. You also get 25 points for this
sukhopar [10]
** DISCLAMIER** am not completely sure. Please do not use my answer unless you are very desperate.

since O,R correspond with A,N I think you half F on each side and add it to 11.2 so
10 divided by 2 = 5
7 is already half.
5 + 7 is 12
12 + 11.2 = 23.2

IF THIS IS WRONG TRY 17
reason for 17:
10 + 7 = 17
If you look at both lines they look the same length as A, N.
3 0
3 years ago
Will mark brainliest!!
Elodia [21]

Answer:

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Step-by-step explanation:

4 0
2 years ago
Write a polynomial in standard form with the zeros –4 0 1 and 4
Tasya [4]

Step-by-step explanation:

Hi there!

Zero of the polynomial is the value of "X" that gives final answer as zero.

<em>So, as the polynomial in the second gives zero every time when we keep the zero which are given in the question. It is the answer.</em>

Check:

• x⁴ - x³ - 16x² + 16x

  • (-4)

Keep the value -4 as the value of X in polynomial.

= (-4)⁴-(-4)³ -16*(-4)²+16*(-4)

= 256+64-256-64

= 0

  • 0

Keep the value 0 as the value of X in polynomial.

= (0)⁴-(0)³ -16*(0)²+16*(0)

= 0-0-0+0

= 0

  • 1

Keep the value 1 as the value of X in polynomial.

= (1)⁴-(1)³ -16*(1)²+16*(1)

= 1-1-16+16

= 0

  • 4

Keep the value 4 as the value of X in polynomial.

= (4)⁴-(4)³ -16*(4)²+16*(4)

= 256 - 64-256+64

= 0

Therefore, the correct answer is option B.

<u>Hope it helps!</u>

6 0
3 years ago
Can someone please help with this question
Alina [70]

The Pythagorean Theorem is a^2 +b^2 = c^2, where a and b are the sides and c is the hypotenuse ( angled line).


3.

a^2 + 6^2 = 18^2

a^2 + 36 = 324

a^2 = 324 - 36

a^2 = 288

a =√288

a = 12√2


4.

a^2 + 3^2 = 9^2

a^2 + 9 = 81

a^2 = 81-9

a^2 = 72

a = √72

a = 6√2

5 0
3 years ago
ANSWER QUICKLY PLEASE Solve for x 1 &lt; x + 3 &lt;4
Degger [83]

Answer:SCAMBODALEETDODODO

Step-by-step explanation:

TOM HOLLAND IS MY HUSBAND DID U KNOW THAT?!

8 0
3 years ago
Read 2 more answers
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