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Viktor [21]
2 years ago
15

If -x²+8x-16=0 what is "x"​

Mathematics
1 answer:
Sergio [31]2 years ago
5 0

Answer:

X=4

x=0

Step-by-step explanation:

  Pull out like factors :

  8x - 16  =   8 • (x - 2)

 (x3) -  8x • (x - 2)  = 0

Pull out like factors :

  x3 - 8x2 + 16x  =   x • (x2 - 8x + 16)

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Ratio equivalent to 2:1
Nataliya [291]

Answer:

4:2

8:4

12:6

16:8

6 0
3 years ago
PLZ HURRY IT'S URGENT!!!!!!!!!!
ICE Princess25 [194]

\:  \:  \:  \frac{9}{12} \\  =   \frac{3 \times 3}{3 \times 4} \\  =  \frac{3}{4} \\  =  \frac{3}{4} \times 1 \\  =  \frac{3}{4} \times  \frac{2}{2} \\  =  \frac{6}{8} =  \frac{3}{4}.

So, Option C is the correct answer.

Hope this will help you. 

If you like my answer. Please mark it as brainliest  And  Be my follower if possible.

8 0
3 years ago
Read 2 more answers
A one day trip to new york, mary spent $6.25 for breakfast and 8.95 for lunch. She can spend no more than an average of $8.50. H
zysi [14]

Mary spent $10.30 on dinner to stay in budget.

Step-by-step explanation:

Amount spent on breakfast = $6.25

Amount spent on lunch = $8.95

Amount spent on dinner = x

Average = $8.50

Average = \frac{Sum\ of\ values}{No.\ of\ values}

8.50 = \frac{6.25+8.95+x}{3}\\8.50=\frac{15.20+x}{3}

Multiplying both sides by 3

8.50*3=\frac{15.20+x}{3}*3\\25.50=15.20+x\\25.50-15.20=x\\x=10.30

Mary spent $10.30 on dinner to stay in budget.

Keywords: Average, addition

Learn more about addition at:

  • brainly.com/question/4694425
  • brainly.com/question/4695279

#LearnwithBrainly

7 0
4 years ago
Can you check my answers and help with number 3?
mamaluj [8]

Answer: Question 1 :B,D.

Question 2:option B,

Question 3:Degree=5.

Question 4:option D.

Question 5: option c.


Step-by-step explanation:

1) A polynomial can not have any exponent as a variable or a fraction.

Options B and D are polynomials.

2) The polynomial is having 3 terms and is of degree 3.so it is a cubic trinomial Option B.

3) Degree is the highest power of the variables in the terms .The term 6x^{3} y^{2} has the power=3+2=5

So degree =5.

4)(5x-2+3x^{2} )+(4x+3)=3x^{2} +5x+4x-2+3=3x^{2}+9x+1.

Option D


5)(5x^{2} +2x-5)-(3x^{2}+3x+1)= 5x^{2}+2x-5-3 x^{2}-3x-1

Simplifying like terms,

=2x^{2}-x-6.

Option c.


6 0
3 years ago
The original price of a bicycle was marked down $20 to a sale price of $85. What was the original price ⁉️
vovikov84 [41]
The price was marked down. If the price was reduced, we have to sum with the other value to find the original price:

85 + 20 = \boxed {105}

The original price was $105.
4 0
3 years ago
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