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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

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Serggg [28]

Answer:

No.

Step-by-step explanation:

As x increases 2^x will grow faster than 5 x^2. This is because the x in 2^x is an exponent and its graph grows very steeply compared with 5x^2 , as x increases.

For example when x = 10

5x^2 = 5*10^2 = 500

2^x =  2^10 =1024

When x = 11:

5x^2 = 605

2^x = 2048 and the difference will continue to increase.

6 0
3 years ago
5/14 in in simple form
slavikrds [6]

Answer:

Step-by-step explanation:

1. Find the GCD ( or HCF) of numerator and denominator

<u>GCD of 5 and 14 is 1</u>

2. Divide both the numerator and denominator by the GCD

5 divide 1 and 14 divide 1

3 reduced fraction

      5/14

7 0
3 years ago
Let f(x)=x2+2x+3 . What is the average rate of change for the quadratic function from x=−2 to x = 5? Enter your answer in the bo
Crazy boy [7]

Answer:

Hello I just took the test and the answer is 5!

5 0
3 years ago
Read 2 more answers
Please help me again
gulaghasi [49]

Answer:

65 degrees

Step-by-step explanation:

<u>Step 1:  Find what the measure of JLK is</u>

JLM + JLK = 180

140 + JLK - 140 = 180 - 140

JLK = 40

<u>Step 2:  Find what the measure of KJL is</u>

KJL + JLK + JKL = 180

KJL + 40 + 75 = 180

KJL + 115 - 115 = 180 - 115

KJL = 65

Answer:  65 degrees

5 0
3 years ago
A map of an island is shown on a half-centimetre grid,
SOVA2 [1]

Answer:

The answer is b.

Step-by-step explanation:

4 0
3 years ago
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