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Grace [21]
3 years ago
12

Can someone answer all these for me pls

Mathematics
1 answer:
Tems11 [23]3 years ago
4 0
Okay
1 yes and yes
2 yes and no
3 no and yes
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A construction firm bids on two different contracts. Let E1 be the event that the bid on the first contract is successful, and d
marissa [1.9K]

Calculate the probability that both bids are successful

Answer:

The probability that both contracs are successful is 0.21

Step-by-step explanation:

Given

E1 = the event that the bid on the first contract is successful

E2 = the event that the bid on the second contract is successful

P(E1) = 0.3

P(E2) = 0.7

Let P(A) represent the event that both contracts are successful

P(A) = P(E1 and E2)

Since both events are independent. P(A) becomes

P(A) = = P(E1 * P(E2)

By substituton

P(A) = 0.3 * 0.7

P(A) = 0.21

Hence the probability that both contracs are successful is 0.21

7 0
3 years ago
Solve this equation by using the look inside method to rewrite the problem <br><br> -81 = 3(5 - 4r)
TEA [102]
-81=3(5-4r)
27=-(5-4r)
27=-5+4r
-4r=-5-27
-4r=-32
r=8

Hope my answer helped u :)
4 0
3 years ago
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 8 to 5. If there were 6
sineoko [7]
I think it’s 3885

Because 6216 divided by 8 is 777, 777x5 is 3885.
I hope that’s right and answers your question
6 0
4 years ago
10(-3n + 8) = 380 pls find n
Flauer [41]

Answer:

n = - 10

Step-by-step explanation:

10(-3n + 8) = 380

-30n + 80 = 380

80 - 380 = 30n

30n = - 300

n = - 300 : 30

n = - 10

3 0
3 years ago
Read 2 more answers
No links please need help
maxonik [38]
He literally or she sorry by the way but they said clearly no links they should kick people with that
4 0
3 years ago
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