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2 years ago

3=1 entonces cuanto es 1+1+1

Mathematics

1 answer:

natka813 [3]2 years ago

4 0

Step-by-step explanation:

si 3=1

1+1+1 = 3+3+3

3=9

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If 60% of the students in your class like Burger King, how many students are in your class if 15 students like Burger King?

zloy xaker [14]

Answer:

Step-by-step explanation:

Let x be the number of students in the class

15 is 60% of x

60% of x can be written as 0.6x

15 = 0.6x

Divide by 0.6 on both sides

25 = x

There are 25 students in the class

Hope this helps :)

8 0

2 years ago

What is the inverse of <br><br> X^2-2x+3

schepotkina [342]

So you have x, then you square it to get x^2, then you minus 2x, then +3
The inverse is going backwards so you -3 then +2x then square root x
So you get square root x + 2x -3
I'm pretty sure this is right, sorry if I'm wrong.

4 0

3 years ago

The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, bu

Mariulka [41]

Answer:

Probability that detector B goes off is '0.615'

Step-by-step explanation:

Given that:

1) Probability that detector A goes off and detector B does not go off is 0.25.

2)Probability that detector A does not go off is 0.35.

3)Probability that detector A goes off is (1-0.35)=0.65

Assuming that

Probability that detector B goes off is 'p' Hence the probability that detector B does not goes off is (1-p)

Thus the probability that detector A goes off and detector B does not go off is product of the individual probabilities

$P(E)=0.65\times (1-p)\\\\0.65\times (1-p)=0.25\\\\0.65-0.65p=0.25\\\\0.65-0.25=0.65p\\\\\therefore p=\frac{0.40}{0.65}=0.615$

Probability that detector B goes off is '0.615'

5 0

3 years ago

What’s equal to 98/60

BigorU [14]

Answer: 49/30, 1 19/30

8 0

2 years ago

Read 2 more answers

Integral of 1/(x^2sqrt(4x+1))?

cestrela7 [59]

<span>Integral of 1/(x^2sqrt(4x+1)) = 4tanh^-1(sqrt(4x + 1)) - sqrt(4x + 1) / x + c</span>

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2 years ago