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Xelga [282]
3 years ago
10

Find the solution to the system of equations.

Mathematics
1 answer:
Feliz [49]3 years ago
8 0
Solution to the system of equation (-2,5)
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It is known that 11% of the seniors in a large high school enter military service upon graduation. If a group of 10 seniors are
GaryK [48]

Answer:

2.2%

Step-by-step explanation:

I don't know if this right but it would be 2/10 and multiply htat by 0.11 (representing the 11%) and you would get 0.022 or 2.2%

6 0
3 years ago
A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive substance. After 19 hours,
Lelu [443]

Answer:

  51 milligrams

Step-by-step explanation:

Exponential growth or decay can be modeled by the equation ...

  y = a·b^(x/c)

where 'a' is the initial value, 'b' is the "growth factor", and 'c' is the time period over which that growth factor applies. The time period units for 'c' and x need to be the same.

In this problem, we're told the initial value is a = 190 mg, and the value decays to 95 mg in 19 hours. This tells us the "growth factor" is ...

  b = 95/190 = 1/2

  c = 19 hours

Then, for x in hours the remaining amount can be modeled by ...

  y = 190·(1/2)^(x/19)

__

After 36 hours, we have x=36, so the remaining amount is ...

  y = 190·(1/2)^(36/19) ≈ 51.095 . . . . milligrams

About 51 mg will remain after 36 hours.

8 0
2 years ago
Who can solve this and send me how they did it please ?!! I’ll mark brainliest
mariarad [96]

Answer:

232.57

A=7

4a2cot(180°

7)=7

4·82·cot(180°

7)≈232.5704

4 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!!!
11Alexandr11 [23.1K]

Answer:

198

Step-by-step explanation:

5 0
3 years ago
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Beginning with January, Connie kept track of the number of books she read each month for six months. By March, she had read a to
bulgar [2K]

Answer: May

Step-by-step explanation: 40/7.3333 equals 5.45 months basically 5 and a half of a month so 5 months which is may

4 0
3 years ago
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