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tigry1 [53]
3 years ago
14

For the past 40 days, Naomi has been recording the number of customers at her restaurant between 10 am and 11 am. During that ho

ur, there have been fewer than 20 customers on 25 out of the 40days.
A. What is the experimental probability there will be fewer than 20 customers on the forty-first day?

B. What is the experimental probability there will be 20 or more customers on the forty first day?
Mathematics
1 answer:
Ugo [173]3 years ago
6 0
A is 25/40 and b is 15/40
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4. Which operation should be completed first in the expression below? Use PEMDAS to evaluate. 24 ÷ (12 – 8) x 6 + 3 a. Add b. Su
irinina [24]

Answer:

Option b - Subtract

Step-by-step explanation:

Given : Expression 24\div(12-8)\times 6+3

To find : Which operation should be completed first in the expression below?

Solution :

P - Parentheses

E - Exponent

D - Divide

M - Multiplication

A - Addition

S - Subtraction

In the first step we solve the bracket in the expression  24\div(12-8)\times 6+3

So, we do subtraction i.e. 12-8=4

Therefore, option b is correct.

5 0
4 years ago
X - 2y + 2z = -22 <br> x + 3y - z = 03 <br> x + 2y + 3z = -15
scZoUnD [109]
What is your question?
7 0
4 years ago
Plzz Need Help!!! 15 Points!!! And will give you Brainliest answer!!!!
irakobra [83]

Answer:

the answer is A. p ∨ q

i think

Step-by-step explanation:


8 0
4 years ago
Consider the parabola represented by the equation -2y^2=4x
stepan [7]
Part 1: The general form for this matches y^2 = -4cx, which implies that this opens to the left. (Imagine assigning any value of y, whether positive or negative, which would result in a positive left-hand value. Then to match this sign, the value of x must be negative so that the right-hand side becomes positive as well.)

Part 2: The distance from the vertex to the directrix is given by c. This equation has its vertex at the origin (0, 0). If it opens to the left, the directrix is a vertical line to the right of the origin. This equation is y^2 = -4(1/2)x, so c = 1/2, and the directrix has the equation x = 1/2.

Part 3: The focus is inside the parabola, but it is the same distance from the vertex as the directrix. This distance is 1/2 units, and it will be to the left of the vertex. So the focus is at (-1/2, 0).
5 0
3 years ago
This math promblem!!!!
fiasKO [112]
1. You convert all the numbers into decimals.
   a. For 8 1/9 you multiply 8x9 and add the numerator which in this case is one, so the equation would be 8x9=72     then 72+1= 73
   b. For 81/10 I used a calculator for accuracy and I just divided 81 by 10 because the fraction line can also be used as a division sign. For this I got 8.1
2. Now I looked at all the numbers I had including the fractions I converted to decimals... 8.115, 8.55, 73, and 8.1
3. Lastly, I put the numbers in order from least to greatest: 8.1, 8.115, 8.55, and 73
4. In order to figure out which one is the smallest and largest, I just added zeros on the end of the numbers so they would all be the same: 8.1-->8.100, 8.115 I kept the same because it already had 3 decimal places, 8.55--> 8.550, and 73--> 73.000
5. Then i could tell which number was the largest by the decimal place numbers.
**Hope this was helpful... It's kind of hard to explain online but hopefully you have a better understanding of how to do it!**
6 0
3 years ago
Read 2 more answers
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