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4 years ago

-3+ (-14) - (-2) – 4

Mathematics

2 answers:

blagie [28]4 years ago

5 0

-3+(-14) -(2-) -4
-3+(-14)=-17
(-17)-(-2)=(-15)
(-15)-4=(-19)

Nutka1998 [239]4 years ago

4 0

Answer:

Hence the answer is -19

Step-by-step explanation:

=-3+ (-14) - (-2) – 4

first of all multiply all the sign we get

=-3-14+2-4

=-19

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At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter.

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Read 2 more answers

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Answer:

$P( X > 46) = 0.7 \ minute$

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From the question we are told that

The procedure for performing a certain task is uniformly distributed on the interval from( a = 32 )minutes to (b= 52) minutes

Generally the cumulative distribution function for continuous uniform distribution is

$F(x) = \left \{ {{0 \ \ \ \ \ for \ x \ x < a} \atop {\frac{x-a}{b-a} } \ \ for \ a \le x \ge b} \atop {1 \ \ \ \ \ \ \ for \ x > b }\right.$

Generally the probability that it takes more than 46 minutes to learn the procedure is mathematically represented as

$P( X > 46) = F(46) = \frac{46 - 32}{52-32}$

=> $P( X > 46) = 0.7 \ minute$

Generally the average time required to learn the procedure is mathematically represented as

$\mu = \frac{a + b}{2}$

=> $\mu = \frac{32 + 52}{2}$

=> $\mu = 42 \ minute$

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