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hoa [83]
3 years ago
10

Can someone help me please

Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0

Answer:

n = -1

Step-by-step explanation:

n^2 + 5n + 1 = 3n

N^2 +2n +1 = 0       (subtract 3n from both sides)

(n+1)(n+1) = 0   (factor

n+1 =0; n= -1

n+1 = 0  ; n=-1

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Kenny’s weight is 6/7 times Melvin’s weight.
Mazyrski [523]

Answer=7:13


Kenny's Weight*6/7=Melvin's Weight


So, for example, if Melvin's weigh was 7...


Kenny's Weight*6/7=7

divide both sides by 6/7

Kenny Weight=6


So we can say that Melvin's weight to Kenny's weight is 7:6


The boys total weights would be...

7+6=13



So Melvin's weight over the total weight of the two boys is:


7:13



3 0
3 years ago
your bike lock has 4 digits numbered 0 to 9. find the total number of possible outcomes for the bike lock
Ann [662]

Answer:

There could be many, my estimate would be around 100.

Step-by-step explanation:

It may sound exaggerated but it can be.

6 0
3 years ago
Can someone help me pls
creativ13 [48]

Answer:

69

Step-by-step explanation:

caculator

69 hahahahahahaha

5 0
3 years ago
How to answer this on descending powers of x please help pretty please
zheka24 [161]

Answer:  25x² - 64

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

  (5x + 8)(5x - 8)

=        5x(5x - 8)   +    8(5x - 8)

=      25x² - 40x    +    40x - 64

=      25x²         + 0x           - 64

=              \large\boxed{25x^2-64}

NOTE: descending powers means the biggest exponent goes first, then the next biggest exponent, etc.

For example: x⁴ then x³ then x² then x then the number (which is actually x⁰)

4 0
3 years ago
Divide the following polynomial using synthetic division, then place the answer in the proper location on the grid. Write answer
Alenkinab [10]

Answer:

The quotient is x^2-3x+1

Step-by-step explanation:

The given polynomial division is (x^3-4x^2+4x-1)\div (x-1)

To perform the synthetic division we write out the coefficients and arrange them as shown.

  1   -4   4   -1

<u>1 |     1    -3   1</u>

   1   -3   1    0

The quotient is x^2-3x+1

The descending powers of x means from highest degree to the least

The remainder is 0

4 0
3 years ago
Read 2 more answers
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