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3 years ago

Which points are solutions to the system of inequalities shown below? Check all that apply!

Mathematics

1 answer:

Ivenika [448]3 years ago

6 0

Answer:

y>x+4 (A,B)

y≤3x (B,C,D,E,F)

x≥7(A,B,D)

i realllyyyyyyyy HOPE THIS HELPS YOUUU!!!

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The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?

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The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

$V(t) = V(0)(1-r)^{t}$

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

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This means that $r = 0.16$

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This is t for which V(t) = 0.5V(0). So

$V(t) = V(0)(0.84)^{t}$

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$t\log{0.84} = \log{0.5}$

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3 years ago

In rectangle PQRS, PR = 18x – 28 and QS = x + 380. Find the value of x and the length of each diagonal.

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Answer:

x = 24, PR = 404, QS = 404

Step-by-step explanation:

PR and QS are both diagonals of the rectangle. The diagonals of a rectangle bisect each other and are of equal length. Thus, we can say:

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Solving for x, we get:

18x - x = 380 + 28

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x = 408/17

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Which points are solutions to the system of inequalities shown below? Check all that apply!​

Which points are solutions to the system of inequalities shown below? Check all that apply!