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Rudik [331]
3 years ago
9

I need help with both of these

Mathematics
1 answer:
stellarik [79]3 years ago
7 0

Answer:

12) 0.01 meter

13) B is the correct

Step-by-step explanation:

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If x-2 is a factor of x^2+3x+k, what is the value of k?
Ne4ueva [31]
Take x-2=0

x=2

put the value of x in the equation

2^2 + 3(2) + k =0
4+6+k=0
10+k=0
k= -10

hope you understand
5 0
3 years ago
Given the sequence an defined recursively below, find a4.<br> a1a2an=1=4=2an−1+an−2
const2013 [10]

Answer:

  a_4=22

Step-by-step explanation:

Maybe you have ...

  a_1=1\\a_2=4\\a_n=2a_{n-1}+a_{n-2}

Then ...

  a_3=2\cdot 4+1=9\\\\a_4=2\cdot 9+4=22

6 0
3 years ago
One-eighth of a number is -4,200.<br><br> What is the number?
Leno4ka [110]
0.125 sorry if I’m wrong :(
7 0
3 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Sever21 [200]
By using sin you can find BD. Sin is the opposite side/ hypotenuse. This can be simplified to BD = opposite (4) divided by sin(27). 27 is the angle.

6 0
3 years ago
Which of the following expressions are equivalent to x + y-z
gavmur [86]

Answer:

C since y-x are being subtracted and there should be another subtraction but there isnt

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