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sp2606 [1]
2 years ago
10

Mary moves 3 steps backward as she dances​

Mathematics
1 answer:
IgorLugansk [536]2 years ago
3 0
Where’s the question????
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A homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bed
cestrela7 [59]

Answer:

0.97

Step-by-step explanation:

Given that a homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bedroom (above the kitchen). If cooking produces smoke in the kitchen, the probability of setting off the dining room alarm (D) is .95. The probability of setting off the bedroom alarm (B) is .40.

Both alarms are independent of each other.

Probability for smoke detection=P(any one alarm rings)

=P(Kitchen alarm sets off)+P(bed room alarm sets off)-P(Both sets off)

Since both are independent

P(Both) = 0.95*0.40\\=0.38

Probability for smoke detection

= 0.95+0.40-0.38

=0.97

7 0
3 years ago
The equations are given below.
amid [387]

Answer:

neither

Step-by-step explanation:

they are parallel when they have the same slope and perpendicular when the slope is completely different

5 0
2 years ago
A car losses it's value at a rate of 27% per year, how long will it take for its value to halve?
rodikova [14]
54 days including the gas
5 0
3 years ago
There are 12 people having lunch. Each person wants 1/3 of a sub sandwich. How many whole sub sandwich are needed
Oliga [24]
12/3= 4
Need 4 whole sub sandwiches in orders for everyone to get 1/3 of a sandwich
3 0
3 years ago
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You have a deck of t trading cards. You give 19 cards to a friend and have 9 left for yourself. How many cards were in the origi
Fynjy0 [20]

Answer:

T=28

Step-by-step explanation:

19+9=T

7 0
3 years ago
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