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3 years ago

PLEASE ANSWER!!

2 answers:

7 0

Answer, the second option

Explanation: if you look at how the letters are set up you can see which one is correct by finding the matching "pair". line segment RF are in the same place as line segment HR

andreyandreev [35.5K]3 years ago

7 0

Answer: Line segment RF ≅ Line segment HR

Step-by-step explanation:

Given , Quadrilateral RAUF ≅ Quadrilateral HBQR.

We know that, the corresponding sides and angles of congruent shapes are congruent.

Then , for sides :

RA ≅ HB [First two letters]

AU ≅ BQ [Middle two]

UF ≅QR [last two letters]

RF ≅HR [First and last letters] (*)

For angles :

∠R ≅ ∠H [First letter]

∠A ≅ ∠B [second letter]

∠U ≅ ∠Q [Third letter]

∠F ≅ ∠R [Fourth letter]

Hence from (*), the true statement : Line segment RF ≅ Line segment HR

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The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi

lara [203]

Answer:

a) 33.33%)

b) 135 minutes

c) 8.66 min

d) 50%

Step-by-step explanation:

a) the probability for a uniform distribution is

P(b<X<a) = (a-b)/(c-d) , where c and d are the maximum and minimum values

therefore the probability that the flight is more than 140 minutes ( and less than 150 since it is the maximum value)

P(140<X<150) = (a-b)/(c-d) = (150-140)/(150-120) = 10/30 = 1/3 (33.33%)

b) the mean (expected value) for a uniform probability distribution is

E(X) = (c+d)/2 = (120+150)/2 = 135 minutes

c) the standard deviation for a uniform probability distribution is

σ²(X)= (c-d)²/12 = (150-120)²/12 = 75 min²

σ = √75 min² = 8.66 min

b) following the same procedure as in a)

P(120<X<135) = (a-b)/(c-d) = (135-120)/(150-120) = 15/30 = 1/2 (50%)

4 0

4 years ago

If there are 10 billion transistors (each of a square shape) uniformly (without space) distributed on a silicon chip with the sq

Karo-lina-s [1.5K]

Answer:

the transistors have L=1 mm of linear size

Step-by-step explanation:

For the silicon chip the area is A=1 cm² and for the transistors the area is At=L² (L=linear size) . Then since N= 10 billion transistors of area At should fit in the area A

A=N*At

A=N*L²

solving for L

L= √(A/N)

Assuming that 1 billion=10⁹ (short scale version of billion), then

L= √(A/N) = √(1 cm²/10⁹) = 1 cm / 10³ = 1 mm

then the transistors have L=1 mm of linear size

4 0

3 years ago

What is the difference?

katovenus [111]

all of them is not a quadratic equations

5 0

4 years ago

Read 2 more answers

1. Calculati! ( Va rog ajutati-ma! )

Ksju [112]

1. 7+ (-9) = 7-9=-2
2.(-8) + (+5)= -8+5= -(8-5)=-3
3.(+9) - (-3) = 9+3=12
4.(+12) - (-1) = 12+1=13
5. (-7) - (-5) = -7+5==(7-5)=-2
<span>(-14) - (+2) = -14-2=-(14+2)=-16</span>

8 0

4 years ago

According to the scatterplot below, which statement is correct? A graph titled Courses Completed versus Remaining Credits Needed

kondaur [170]

Answer:

Option B.

Step-by-step explanation:

It is given that a graph titled Courses Completed versus Remaining Credits Needed to Graduate has courses completed on the x-axis and Credits need to graduate on the y-axis.

Points plotted are (4, 110), (8, 76), (16, 63), (20, 53), (24, 33).

Since, x-axis represents the courses completed, therefore the input, or independent variable is courses completed.

Since, y-axis represents the Credits need to graduate, therefore the output, or dependent variable is Credits need to graduate.

Therefore, the correct option is B.

6 0

3 years ago

Read 2 more answers