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elixir [45]
4 years ago
15

9) f(x) = x2 - X + 2 x = -8

Mathematics
1 answer:
timofeeve [1]4 years ago
5 0
I think the answer will be 7.25.
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An object falls 9 meters during the first second, another 27 meters during the second second, and then 81 meters more during the
marishachu [46]
360 meters is the answer as 9 meter in 1st second ,27 meter in 2nd and 81 in 3rd it is in a series of geometric progression ...of 9,27,81 in which 9*3 =27,27*3=81 so next number will be 81*3=243 total distance moved in 4 seconds is 243+81+27+9=360 meters

4 0
3 years ago
Please, I need help with my homework. I not asking anybody to do it, but I need help for it.
jenyasd209 [6]

Answer:

1) x = -2

Step-by-step explanation:

1) x + 7 + x + 11 = 14

 2x + 18 = 14

        2x = 14 - 18

     2x =  -4

       x = -4/2 = -2

4 0
3 years ago
A bag contains blue and yellow marbles. Two marbles are drawn without replacement. The probability of selecting a blue marble an
exis [7]
 blue marbles
y = yellow marbles
 Sum = b+y
 The <span>chance of a blue marble being drawn first is:
b / (b+y) = 0.55 
</span>The <span>chance of a blue marble being drawn first then a yellow next is:
</span>b / (b+y) * y / (b+y-1) = 0.37
This can be solve easily by using a theorem of Bayes 
0.37/0.55 = .67 or 67%
7 0
3 years ago
Standard form for -10-6x^4-7x^2+5x
qaws [65]
-6x^4-7x^2+5x-10. hope this helps ! :)
7 0
3 years ago
What is the range of the function ok the graph
olga2289 [7]
All real numbers greater than or equal to 1
6 0
3 years ago
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