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andrew-mc [135]
2 years ago
13

I dont know 4, 5, and 6 Help plz :]

Mathematics
1 answer:
Rzqust [24]2 years ago
8 0
What he said seems abt right
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1. A submarine is 40 meters below sea level. It goes up 12 meters, then goes down 30 meters. What is the submarine's new positio
expeople1 [14]

Answer:

58

Step-by-step explanation:

The submarine is below the sea level by 40 meters. Then, it goes up by 12. That means 40-12=28. The submarine goes 30m down again which means 28+30=58

7 0
3 years ago
What is the perimeter of the garage if d=3<br><br> I’m marking branliest
mart [117]

Answer:

perimeter= 46

Step-by-step explanation:

(3(3)-2) + (3(3)-2) + (5(3)+1) + (5(3)+1)

7 + 7 + 16 + 16

= 46

5 0
3 years ago
Ivan evaluated the expression 8+12÷3×2 and got 10. What mistake did he make?
lesya [120]
Ivan forgot to follow PEMDAS
Division first
12/3 = 4
4 x 2 = 8
8 + 8 = 16
Hope this helps!
3 0
2 years ago
Read 2 more answers
80% of an airline's flights depart on-time and 20% do not. Of those that depart on-time, 95% arrive on-time. Of those that depar
Dmitry_Shevchenko [17]

Answer:

0.78

Step-by-step explanation:

given that 80% of an airline's flights depart on-time and 20% do not.

Of those that depart on-time, 95% arrive on-time. Of those that depart late, 10% arrive on-time

Let A be the event that flight departs on time.

Now A and A' are mutually exclusive and exhaustive

Let B be the event the flight arrives on time

Using total probability calculation we have

the chance of someone taking a flight that will arrive on-time

= P(B)

=P(A)+P(A'B)\\= 0.80(0.95) +0.20(0.10)\\= 0.76+0.02\\=0.78

4 0
3 years ago
Y = 4x - 7 <br> What is the slope?
makkiz [27]

Answer:

(4x the answer ) can you help with my question

Step-by-step explanation:

3 0
3 years ago
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