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xz_007 [3.2K]
3 years ago
6

I need help with this for #22 a., b., and c.

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
3 0
There is no question.
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If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B).
Korolek [52]

Answer:

P(A or B) = 25%

Step-by-step explanation:

P(A and B) = 30%

P(A) = 40%

P(B) = 15%

Apply given formula:

P(A or B) = P(A) + P(B) - P(AB)

= 40%+15+-30%

= 25%

8 0
3 years ago
It takes a bear 9 more days to eat a barrel of honey alone than it takes the bear and a second bear to eat the barrel of honey t
Rudik [331]

Answer:

it takes the bears 12 days to eat honey together.

Step-by-step explanation:

1/x+9+1/x+16=1/x

(solve this using cross multiplication)

= x^2 = 144

x=12

8 0
3 years ago
Before a movie began, a theater had people waiting in the seats. During each of 4 movie trailers, 7 more people came into the th
valentinak56 [21]

Answer:

well assuming that it's linear the

Step-by-step explanation would be: something but you don't want that you want the answer assuming that 7 people came in every 4 trailers the slope or rate of change would be 7/4 and the initial value would be 5.

8 0
3 years ago
What is the value of k?<br>​
poizon [28]
Someone better come get her because she dancing like a s.t.i.p.p.e.r
8 0
3 years ago
Trent's mom grave him $30. He earned another $12 completing chores. Trent spent $15 at the movie theater and $6 on lunch. How mu
cluponka [151]
30+12=42
15+6=21
42-21=21
Trent has $21 dollars left.
8 0
3 years ago
Read 2 more answers
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