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lisabon 2012 [21]
2 years ago
6

WHICH ONE IS THE CORRECT ANSWERS A B C D

Mathematics
2 answers:
hjlf2 years ago
5 0

D!!!!!!!!!!!!!!!!!!!!!!!!!!!

antiseptic1488 [7]2 years ago
4 0

Answer:

i believe it's B

Step-by-step explanation:

a and b are stated as "two different numbers" and x is an unknown variable. a=a is the only one with two variables that definitively equal each other

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An air traffic controller is tracking two planes. To start, Plane A is at an altitude of 4385 feet and Plane B is at an altitude
Fantom [35]

Answer:

60 seconds, 7715 feet

Step-by-step explanation:

Plane A and B start out 615 feet apart, and we find this by subtracting the height of plane A from plane B, getting 5000-4385=615. Now we have to find how many more feet of altitude plane A is gaining per second over plane B.

To find this we subtract 45.25 from 55.5 and get 10.25 feet per second. Now to find out how many seconds until they'll be at the same altitude we simply divide 615 by 10.25, getting 60 seconds.

For the second part, to find the altitude at this point, we simply multiply the altitude gain of one of the planes per second by the time of 60 seconds to get how much altitude they gained over that time, and add it to the starting altitude. Doing this with plane B we get 45.25*60=2715, and we add that to 5000 to get the final answer of 7715.

4 0
3 years ago
Why do you multiply by a power of 10 when writing a repeating decimal as a rational number
stira [4]
1.28 = 128 * 10^-2

128 * (1/10^2)

128 / 10^2

128 / 100

1.28


Because, it's literally the same thing mathematically if you worked it out. Though, as I'm sure you're aware, it's just a much shorter and cleaner way of writing out large or small numbers.
8 0
3 years ago
Read 2 more answers
Melinda works at the card shop. She fills the racks with cards. Each rack hold 175 cards. How many cards will Melinda need to fi
tester [92]

Answer:

875

Step-by-step explanation:

175 x 5 =

8 0
3 years ago
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Given that (-9,8) is on the graph of f(x), find the
rodikova [14]

Answer:

the corresponding point for function f(x) + 2 would be (12, -8)

7 0
2 years ago
EASY EXTRA POINTS HELP ASAP
Shkiper50 [21]

Answer:

(1,-1)

Step-by-step explanation:

The intersection of the two lines

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3 years ago
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