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BabaBlast [244]
2 years ago
9

Twenty-five percent of the customers entering a grocery store between 5 P.M. and 7 P.M. use an express checkout. Consider five r

andomly selected customers, and let x denote the number among the five who use the express checkout. (a) What is p(4), that is, P(x = 4)? (Round the answer to five decimal places.) p(4) = .15 Incorrect: Your answer is incorrect.
Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
6 0

Answer:

Step-by-step explanation:

Download docx
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a shoreline is changing -3 centimeters each year due to erosion. what is the change in shoreline over 6 years?
NikAS [45]

Answer:

-18

Step-by-step explanation:

3 0
3 years ago
A square has a perimeter of 12x+52 units. Which expression represents the side leagth of the square in units
Harrizon [31]

Answer:

12x/2 or 52/2

Step-by-step explanation:

Ok, perimeter is length+length+width+width. 12x/2 and 52/2 could are probably the answers.

6 0
3 years ago
last night, julie's pet hamster zoe kept julie awake for at least an hour running on her exercise wheel and scratching at the co
borishaifa [10]

Answer: x+y\geq 1, x>\frac{1}{4} ,  x\geq 2y and y\geq 0

Step-by-step explanation:

Here,  x represents the number of hours Zoe spent running on her wheel and y represents the number of hours spent scratching her cage.

Julie was awoke for at least an hour running on her exercise wheel and scratching the of her cage.

⇒ x+y\geq 1

She ran on her wheel at least twice as long as she scratched at the corners of her cage.

⇒ x\geq 2y

Also, She spent more than 1/4 hour running on her wheel.

⇒ x>\frac{1}{4}

And, we know that number of hours can not be negative.

⇒  y\geq 0

Therefore, the complete system of inequality which shows the given situation is,

x+y\geq 1, x>\frac{1}{4} and x\geq 2y, y\geq 0

Note: the feasible region ( covered by the given system) is shown in the below graph.


6 0
3 years ago
Can someone help me w this question? rq?
victus00 [196]

Answer:

C.

Step-by-step explanation:

We can off-the-bat eliminate choices A and B, because the first part of the quadratic formula is a -b. Therefore, the value for b in the quadratic has to be a positive, because the value in the formula is negative. This leaves us with choices C and D. If you look at the discriminant, you will see that our <em>a </em>in the quadratic formula is 3, so your answer choice is C.

5 0
3 years ago
aircraft costs ​$2901 dollars per hour to operate. The algebraic expression 2901t gives the total cost to operate the aircraft f
Cloud [144]

Answer:

$20016.90

Step-by-step explanation:

all you do is multiply. easy-peasy

2901x6.9=20016.90

6 0
3 years ago
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