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
Leviafan [203]
3 years ago
15

At a coffee shop, 70% of the customers buy a coffee drink, 30% buy food, and 20% buy both a coffee drink and food. Are buying fo

od and buying a coffee drink independent events? How do you know?
Mathematics
2 answers:
Shkiper50 [21]3 years ago
8 0

Yes.

70% of the customers buy a coffee drink and 30% buy food.

The sum of it is 100% already.

So 20% of it just another addition of information since it cannot exceed 100% of percentage (100% + 20% = 120%).

It also contains a subset for both percentage.

Bad White [126]3 years ago
8 0

Answer:

No

Step-by-step explanation:

If independent,

P(C^F) = P(C) × P(F)

0.2 = 0.3×0.7

0.2 = 0.21 is not a true statement

You might be interested in
And are perpendiculars dropped from to , and is perpendicular to and . If CR = DS, which statement must be true?
Ghella [55]
The answer is m rcd= m acd divided by 3
5 0
3 years ago
Read 2 more answers
Y=+/ (square root sigh) 346
AnnyKZ [126]
= 18.60108 that’s the answer
6 0
3 years ago
Some please help and explain the steps. Tysmmmmm
-Dominant- [34]

Answer:

since angle B and angle C contains the same arc AD. set the angles equal

11x-3=8x+15

x=6

so the angle has a measure of 63 degrees

the central angle is the angle of the arc

and it is always 2 times the angle that we just that contains the arc but does touches the end of the circle.

so its 63 *2 =126 degrees.

5 0
2 years ago
)) In a right triangle, a and b are the lengths of the legs and c is the length of the
kondor19780726 [428]

Answer:

5.66 inches

Step-by-step explanation:

{a}^{2}  +  {b }^{2}   =   {c}^{2}

a² + 7² = 9²

a² + 49 = 81

a² + 49 - 49 = 81 - 49

a² = 32

a = square root of 32

a = 5.6568 or 5.66 inches

I used the Pythagorean Theorem to solve this.

7 0
3 years ago
Read 2 more answers
Solve: (⅓) x – 13 &gt; 14<br> A) x &lt; 81 <br> B) x &gt; 81<br> C) x &gt; 9 <br> D) x &lt; 9
frozen [14]

\dfrac{1}{3}x-13>14\qquad\text{add 13 to both sides}\\\\\dfrac{1}{3}x>27\qquad\text{multiply both sides by 3}\\\\\boxed{x>81}\to\boxed{B)}

4 0
3 years ago
Other questions:
  • A raffle is held at MTHS ASB to draw for a $1000 plasma television. Two thousand tickets are sold at $1.00 each. Find the expect
    8·2 answers
  • Penny has made a pattern of shapes on her bedroom walls she drew a rectangle, 2 circles, a rectangle, then 2 more circles until
    12·1 answer
  • A package of of 500 sheets of computer paper has dimensions of 8 1/2 x 11x2. How many packages will fit in a box with 17 1/2x12x
    14·1 answer
  • There are 21 students  in Mr.Tentlers  class The students divided themselves evenly  into 3 groups.how many  students  are in ea
    10·2 answers
  • Michael decided to make French toast he finds a recipe that calls for the following ingredients
    9·2 answers
  • Please help as soon as possible!
    6·2 answers
  • The Brown family needs to rent a truck for their upcoming move. Express Movers will charge them $25 for the first day and $0.80
    9·2 answers
  • Hey again, just need help on the second one, I figured out the first one.
    11·1 answer
  • HELPPPPPPPPP!
    8·2 answers
  • Help Thank youu ^^
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!