1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ale4655 [162]
3 years ago
14

Suppose a railroad rail 2 kilometers in length expands 16 centimeters on a hot day. How many meters would the center rise above

ground?
Mathematics
1 answer:
TEA [102]3 years ago
5 0

Answer:

1600000000.00 centimeter

Step-by-step explanation:


You might be interested in
If y= 3x + 6, what is the minimum value of (x^3)(y)?
Rainbow [258]

Answer:

Given the statement: if y =3x+6.

Find the minimum value of (x^3)(y)

Let f(x) = (x^3)(y)

Substitute the value of y ;

f(x)=(x^3)(3x+6)

Distribute the terms;

f(x)= 3x^4 + 6x^3

The derivative value of f(x) with respect to x.

\frac{df}{dx} =\frac{d}{dx}(3x^4+6x^3)

Using \frac{d}{dx}(x^n) = nx^{n-1}

we have;

\frac{df}{dx} =(12x^3+18x^2)

Set \frac{df}{dx} = 0

then;

(12x^3+18x^2) =0

6x^2(2x + 3) = 0

By zero product property;

6x^2=0   and 2x + 3 = 0

⇒ x=0 and x = -\frac{3}{2} = -1.5

then;

at x = 0

f(0) = 0

and  

x = -1.5

f(-1.5) = 3(-1.5)^4 + 6(-1.5)^3 = 15.1875-20.25 = -5.0625


Hence the minimum value of (x^3)(y) is, -5.0625






3 0
3 years ago
Five cards are drawn from a standard 52-card playing deck. A gambler has been dealt five cards—two aces, one king, one 3, and on
Nookie1986 [14]

Answer:

The probability that he ends up with a full house is 0.0083.

Step-by-step explanation:

We are given that a gambler has been dealt five cards—two aces, one king, one 3, and one 6. He discards the 3 and the 6 and is dealt two more cards.

We have to find the probability that he ends up with a full house (3 cards of one kind, 2 cards of another kind).

We know that gambler will end up with a full house in two different ways (knowing that he has given two more cards);

  • If he is given with two kings.
  • If he is given one king and one ace.

Only in these two situations, he will end up with a full house.

Now, there are three kings and two aces left which means at the time of drawing cards from the deck, the available cards will be 47.

So, the ways in which we can draw two kings from available three kings is given by =  \frac{^{3}C_2 }{^{47}C_2}   {∵ one king is already there}

              =  \frac{3!}{2! \times 1!}\times \frac{2! \times 45!}{47!}           {∵ ^{n}C_r = \frac{n!}{r! \times (n-r)!} }

              =  \frac{3}{1081}  =  0.0028

Similarly, the ways in which one king and one ace can be drawn from available 3 kings and 2 aces is given by =  \frac{^{3}C_1 \times ^{2}C_1 }{^{47}C_2}

                                                                   =  \frac{3!}{1! \times 2!}\times \frac{2!}{1! \times 1!} \times \frac{2! \times 45!}{47!}

                                                                   =  \frac{6}{1081}  =  0.0055

Now, probability that he ends up with a full house = \frac{3}{1081} + \frac{6}{1081}

                                                                                    =  \frac{9}{1081} = <u>0.0083</u>.

3 0
3 years ago
Read 2 more answers
What is the multiplicative inverse of y? y 1 y -y 0<br><br><br>Ill give brainly if correct :D
kondor19780726 [428]

Answer:

The multiplicative inverse of y is - 1/y

Step-by-step explanation:

hope this helps :)

4 0
2 years ago
A secret formula for eternal youth, f (x), was discovered by Dr. Quick, who has been working in our biotech company. However, Dr
charle [14.2K]

Answer:9

Step-by-step explanation:3x3= 9

(X3x3x3)

=9p

8 0
3 years ago
Find the product. (10^2)^3 <br> 1,000 <br> 10,000 <br> 100,000 <br> 1,000,000
dangina [55]
The answer is 1000000
10^2=100
100^3=1000000
3 0
3 years ago
Other questions:
  • An investor bought some shares at a price of £14.88 each. The price of the shares drops to £11.45. Find the percentage loss.
    8·1 answer
  • Do you add or subtract?
    8·1 answer
  • Steve works at Lowes and gets a 10% commission for each appliance he sells. If he sells $5,680 worth of appliances this week, ho
    13·1 answer
  • Express each ratio as a fraction in simplest form. Hint: 1 yard = 3 feet.<br><br> 9 yards to 48 feet
    13·1 answer
  • Using the letter n to represent a number, express
    11·1 answer
  • Find the slope of the line that passes through (10, 6) and (7, 10).
    15·1 answer
  • ♥||Please help A.S.A.P i will mark you brainliest!||♥
    11·1 answer
  • I need help asap D:
    11·1 answer
  • C) The area of a trapezium is 480 cm2, the distance between two parallel sides is 15 cm and one of
    6·1 answer
  • What is the slope of the line between (5,10) (3,15)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!