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____ [38]
3 years ago
9

I don't understand how to do this. Can anyone help. Preferably with steps. Thank you in advance!

Mathematics
1 answer:
Andrew [12]3 years ago
3 0
You put the x=6
6³-4(6)²-12(6)+15=15
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Please give answer ??
krok68 [10]

Answer:

21.5%

Step-by-step explanation:

The area of the 4 circles together = 4×π×12^2

The area of the square = 48^2

then the probability that the point is in one of the circles =

(4×π×12^2)÷48^2

=0.785398163397

Therefore, the probability that the point is not in a circle =

1 - 0.785398163397 = 0.214601836603

converted into percentage : 21.4601836603

rounded = 21.5%

8 0
3 years ago
Please need help please please
balu736 [363]
D .,,;:.,))(://.,(;:,,(;
4 0
3 years ago
Two blocks are connected by a very light string passing over a massless and frictionless pulley. The 20.0 N block moves 75.0cm t
Angelina_Jolie [31]
The string is assumed to be massless so the tension is the sting above the 12.0 N block has the same magnitude to the horizontal tension pulling to the right of the 20.0 N block. Thus, 
1.22 a = 12.0 - T  (eqn 1)
and for the 20.0 N block: 
2.04 a = T - 20.0 x 0.325 (using µ(k) for the coefficient of friction) 
2.04 a = T - 6.5  (eqn 2) 

[eqn 1] + [eqn 2] → 3.26 a = 5.5 
a = 1.69 m/s² 


Subs a = 1.69 into [eqn 2] → 2.04 x 1.69 = T - 6.5 
T = 9.95 N 

Now want the resultant force acting on the 20.0 N block: 
Resultant force acting on the 20.0 N block = 9.95 - 20.0 x 0.325 = 3.45 N 
<span>Units have to be consistent ... so have to convert 75.0 cm to m: </span>

75.0 cm = 75.0 cm x [1 m / 100 cm] = 0.750 m 
<span>work done on the 20.0 N block = 3.45 x 0.750 = 2.59 J</span>
3 0
2 years ago
Please help! calculate the maximum volume of the box.
lina2011 [118]
Have you used the length*width*height?
8 0
3 years ago
Which of the following is a counterexample to the statement “All even numbers are divisible by 4”? 2 x 2 = 4 7 is not divisible
Naily [24]
10 is not divisible by 4
5 0
3 years ago
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