What is the value of h, rounded to the nearest tenth?

Seventy percent of light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircra

alukav5142 [94]

Answer:

Figure out the various probabilities first, that will make the rest of the questions easier:

P(discovered) = .7

P(not discovered) = 1 - .7 = .3

P(locator|discovered) = .6

P(no locator|discovered) = 1 - .6 = .4

P(locator|not discovered) = 1 - .9 = .1

P(no locator|not discovered) = .9

P(discovered and locator) = .7 * .6 = .42

P(discovered and no locator) = .7 * .4 = .28

P(not discovered and locator) = .3 * .1 = .03

P(not discovered and no locator) = .3 * .9 = .27

a) The total probability that an aircraft has a locator is .42 + .03 = .45. So the probability it will not be discovered, given it has a locator, is .03/.45 = .067

b) The total probability that an aircraft does not have a locator is .28 + .27 = .55. So the probability it will be discovered, given it does not have a locator, is .28/.55 = .509

c) Probability that 7 are discovered = C(10,7) * P(discovered|locator)^7 * P(not discovered|locator)^3

We already figured out P(not discovered|locator) = .067, so P(discovered|locator) = 1-.067 = .933. C(10,7) = 10*9*8, so we can compute total probability: 10*9*8 * .933^7 * .067^3 = .133

Step-by-step explanation:

3 0

3 years ago

What two numbers whose sum is 31 and whose difference is 1

Vlad [161]

I f i am correct 15 and 16

cuz 15+16 = 31
but 16-15= 1

6 0

3 years ago

Need Help Asap!!<br><img src="https://tex.z-dn.net/?f=%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20" id="TexFormula1" title="

kolbaska11 [484]

$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Let's check I the given pairs of triangles are congruent or not ~

<h3>problem 1 </h3>

$\qquad \sf \dashrightarrow \:ABC \cong FED$

These triangles are congruent by SSS congruency, as it's three sides are equal.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 2 </h3>

$\qquad \sf \dashrightarrow \:LMN \not \cong PQO$

・．━━━━━━━†━━━━━━━━━．・

These triangles are not congruent because they don't fulfill any congruency criteria.

<h3>problem 3 </h3>

$\qquad \sf \dashrightarrow \: XVW \cong YZA$

These triangles are congruent by AAS congruency criteria, since two angles and one of the side is common.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 4 </h3>

$\qquad \sf \dashrightarrow \: GHI \not \cong IJG$

These triangles are not congruent because they don't fulfill any criteria.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 5</h3>

$\qquad \sf \dashrightarrow \: PQR\cong QPO$

These triangles are congruent by SSS congruency, as it's two sides are equal and one side is common.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 6</h3>

$\qquad \sf \dashrightarrow \: JIK \cong HIG$

These triangles are congruent by SAS congruency, since two sides and Angle between them are equal.

・．━━━━━━━†━━━━━━━━━．・

<h3>Problem 7</h3>

These given triangles are congruent by SSS congruency, because they have two equal sides and one common side in there.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 8 </h3>

$\qquad \sf \dashrightarrow \: BCD \cong FED$

These triangles are congruent by ASA congruency, because they have one pair equal angles, one pair of vertical opposite angles (they are equal) and a side between them equal.

・．━━━━━━━†━━━━━━━━━．・

<h3>problem 9</h3>

$\qquad \sf \dashrightarrow \: LKM \cong LNM$

These given triangles are congruent by SSS congruency, because they have two equal sides and one common side in there.

➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖

5 0

2 years ago

PLEASE HELP PLEASE DUE IN 30 MINUTES Please

stellarik [79]

Answer:

3. (1,15) and (6,30) = 30-15/6-1=3x

15=3(1)+b
b=12
so y=3x+12

4. 66=3x+12 then 18 weeks

6 0

3 years ago

Solve for x<br> 10x-2(x+4)=8(x-2)+6

hoa [83]

Answer:

PA GEN SOLISYON → NO SOLUTION

Step-by-step explanation:

10x - 2x - 8 = 8x - 16 + 6 >> 8x - 8 = 8x - 10

8x - 8 = 8x - 10

-----------------

-8 ≠ -10

I am joyous to assist you anytime.

6 0

3 years ago