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
USPshnik [31]
3 years ago
15

The probability that a train leaves on time is 0.9. The probability that the train arrives on time and leaves on time is 0.36. W

hat is the probability that the train arrives on time, given that it leaves on time?
0.4
0.9
0.27
0.36
Mathematics
2 answers:
ASHA 777 [7]3 years ago
5 0
P(arrives on time given leaves on time)=
P(B | A)= P(B n A) / P(A)
= P(A n B) / P(A)
= 0.36 / 0.9
= 0.4
Roman55 [17]3 years ago
4 0

.4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer .4 is the answer

You might be interested in
What is X squared +3x-70
Aleksandr-060686 [28]

Answer:

x = 7, x = -10

Step-by-step explanation:

x^2+3x-70 = 0

Use the quadratic formula.

x = \frac{-3 + \sqrt{3^2-4(1)(-70)} }{2(1)} \\x = \frac{-3 - \sqrt{3^2-4(1)(-70)} }{2(1)} \\

Solve.

x = 7, x = -10

You can also factor if you want - that is a faster method.

8 0
3 years ago
L(t) models the length of each day (in minutes) in Manila, Philippines tt days after the spring equinox. Here, t is entered in r
SVETLANKA909090 [29]

Answer:

Given that:

L(t) = 52\sin(\frac{2 \pi t}{365})+728

where

L(t) represents the length of each day(in minutes) and t represents the number of days.

Substitute the value of L(t) = 750 minutes we get;

750= 52\sin(\frac{2 \pi t}{365})+728

Subtract 728 from both sides we get;

22= 52\sin(\frac{2 \pi t}{365})

Divide both sides by 52 we get;

0.42307692352= \sin(\frac{2 \pi t}{365})

or

\frac{2 \pi t}{365} = \sin^{-1} (0.42307692352)

Simplify:

\frac{2 \pi t}{365} =0.43683845

or

t = \frac{365 \times 0.43683854}{2 \times \pi} = \frac{365 \times 0.43683854}{2 \times 3.14}

Simplify:

t \approx 25 days

Therefore, the first day after the spring equinox that the day length is 750 minutes, is 25 days

4 0
3 years ago
Read 2 more answers
Natalie has 412 apples that she must package into bags. Each bag must hold 8 apples. Natalie divides 412 by 8 and gets an answer
worty [1.4K]

Answer:

Natalie has 4 apples left

Step-by-step explanation:

one bag is 8 apples and only has 4 left so it cant fill another bag let alone 4, so a is out. Natalie has 4 apples, not 4 bags, so there goes B. The only one left is C Natalie has  apples left after filling 51 bags.

5 0
3 years ago
Evaluate the expression if a=2,b=-3,C=-1, and D=4<br><br><br> -2(b^2-5c)
Alenkasestr [34]

\qquad \qquad  \bf \huge\star \:  \:  \large{  \underline{Answer} }  \huge \:  \: \star

  • Equivalent value = -28

\textsf{  \underline{\underline{Steps to solve the problem} }:}

\qquad❖ \:  \sf \: - 2( {b}^{2}  - 5c)

( put the values )

\qquad❖ \:  \sf \: - 2 \{( - 3) {}^{2}  - 5( - 1) \}

\qquad❖ \:  \sf \: - 2(9 -  (- 5))

\qquad❖ \:  \sf \: - 2(9 + 5)

\qquad❖ \:  \sf \: - 2 \times 14

\qquad❖ \:  \sf \: - 28

\qquad \large \sf {Conclusion}  :

  • -2(b² - 5c) = -28

7 0
1 year ago
What is the completely factored form of this polynomial? 4x4+12x2+9
nlexa [21]
When it says 4x4 and 12x2 does that mean it’s squared or multiplied by those?
6 0
2 years ago
Other questions:
  • John's commute time to work during the week follows the normal probability distribution with a mean time of 26.7 minutes and a s
    9·1 answer
  • The term "between-subjects" refers to
    14·2 answers
  • What are the LCM of 24 and 30?
    13·2 answers
  • 2,000 rupees to US dollars
    15·1 answer
  • Helpppppp 10points some plz help
    5·1 answer
  • What does (4x - y) + (-10 + y) equal if x = 3 and y = 4?
    6·2 answers
  • Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5, and a drink for $2. Write an ex
    5·2 answers
  • Solve the proportion
    12·1 answer
  • Value of the digit 3 for 263 is​
    13·2 answers
  • Juan paga por un saco S/ 224, después de que le han
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!