Trong một cuộc khảo sát 64 khách hàng ở một tiệm ăn nhanh, thời gian đợi trung bình là 3 phút và độ lệch chuẩn là 1,5 phút. Với độ tin cậy 98%, tìm khoảng tin cậy cho thời gian đợi phục vụ
trung bình của tiệm ăn này. Biết thời gian đợi phục vụ là biến ngẫu nhiên có phân phối (xấp xỉ)
chuẩn.

0 is its x and y coordinate

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

the most boring thing ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

b and c

step-by-step explanation: