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4 years ago

5

The value of n is both 5 times as much as the value of m and 36 more than the value of m. what are the values of n and m? explai

n.

1 answer:

Cloud [144]4 years ago

8 0

I'm in seventh grade. I haven't learned that yet.
try asking your teacher.

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To reduce costly shutdowns caused by false alarms, management introduces a sec- ond completely independent sensor, and the react

vovikov84 [41]

Answer:

a) 0.03

b) 0.0004

c) 0.0001

Step-by-step explanation:

Probability that the sensor reports what is going on accurately = 0.97

Probability that the sensor gives a false alarm = 0.02

Probability that the sensor gives a miss = 0.01

(a) Probability that the sensor reports what is going on accurately = 0.97

Probability that the sensor will give incorrect report = 1 - 0.97 = 0.03

It could also be evaluated as the probability that the sensor gives either a false alarm or gives a miss = 0.02 + 0.01 = 0.03.

b) Probability of false alarms on one sensor = 0.02

Since the two sensors are independent of each other,

The probability that the reactor will be shut down because of simultaneous false alarms by both the first and second sensors

= 0.02 × 0.02 = 0.0004

c) Probability of a miss with one sensor = 0.01

Since the two sensors are independent of each other,

The the new probability that excessive radiation will be missed simultaneously by both the first and second sensors

= 0.01 × 0.01 = 0.0001

Hope this Helps!!!

3 0

4 years ago

On his way out to meet a friend for lunch, David realized that his financial record was not up to date. He notices that he forgo

Firlakuza [10]

Answer:

b

Step-by-step explanation:

add the three numbers together then minus from the main total

7 0

3 years ago

How do i write, the sum of 2 and -3 decreased by 7

allsm [11]

Hihi!

You would write it like: 2+(-3)-7 If you have any more questions be sure to ask!

I hope I helped!
-Jailbaitasmr

6 0

4 years ago

Read 2 more answers

During the summer, Cecile read twice as many books as Kami. Laura read three times as

Eva8 [605]

Answer:

The equation

c x 2 > k

l x 3 ?> c > k

g = 30 = c + l + k

this equation is the same as...

Cecile read twice as many books as Kami.

Laura read 3 times as many books as Kami, but possibly less than Cecile.

Gigi read 30 books. 30 books is the same as all 3 girls combined.

To find out how many books each girl read, you need to find 3 unequal numbers that add up to 30. These numbers are substituted, only because they can be anything at all, and I want to prevent confusions.

hope this helps!

6 0

2 years ago

Find the angle between vector u=2i+sqrt(11)j and v=-3i-2j to the nearest degree

const2013 [10]

Answer: Last option 155°

Step-by-step explanation:

We have the components of the vectors u and v.

Then, to find the angle between them, perform the following steps:

1) Calculate the scalar product u * v

If $u = 2i + \sqrt{11}j$ and $v = -3i-2j$

Then, the product scalar u * v is:

$u * v = (2)(-3) + (\sqrt{11})(-2)$

$u * v = -6-2\sqrt{11}$

$u * v = -12.633$

2) Calculation of the magnitude of both vectors.

$| u | = \sqrt{(2) ^ 2 + (\sqrt{11})^2}\\\\| u | = \sqrt{4+11}\\\\| u | = \sqrt{15}$

$| v | = \sqrt{(- 3) ^ 2 + (- 2) ^ 2}\\\\| v | = \sqrt{9 +4}\\\\| v | = \sqrt{13}$

3) Now that you know the product point between the two vectors and the magnitude of each, then use the following formula to find an angle

$u * v = | u || v |cos(\alpha)$

$-12.633 = \sqrt{15}\sqrt{13}*cos(\alpha)\\\\cos(\alpha) = \frac{-12.633}{\sqrt{15}\sqrt{13}}\\\\arcos(\frac{-12.633}{\sqrt{15}\sqrt{13}}) = \alpha\\\\\alpha =155\°$

7 0

4 years ago