I could really use some help

2 answers:

5 0

The sequence is increasing by the previous number multiplied by negative 3 (x -3). With this information, the correct answer would be A. -648, 1944, 5832

Dahasolnce [82]3 years ago

3 0

Answer: None of the above are correct

Step-by-step explanation: The values are being multiplied by -3 each time. (-8*-3=24, 24*-3=-72, and so on.) Out of all the choices, A would be the most accurate answer. But the problem is that 1944 multiplied by -3 does NOT equal 5832. It equals NEGATIVE 5832. As I said, A would be your best choice.

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Point (a,a) lies on the graph of the equation 3y = 2x -4 find the value of a

Igoryamba

Substituting (x, y) with (a, a), since we have:

3a=2a-4, which means that 3a-2a=-4, that is a=-4.

So, the point is (-4, -4).

Remark: a point which lies in the graph of an equation is a solution of that equation. So x=a, y=a satisfies the equation <span> 3y = 2x -4, which makes our substitution legitimate.

Answer: </span>(-4, -4).

5 0

4 years ago

Given P(A) = 0.072, P(B) = 0.180, and P(C) = 0.027, and that events A, B, and C are mutually exclusive, what is the P(A or B or

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Given P(A) = 0.072, P(B) = 0.180, and P(C) = 0.027, and that events A, B, and C are mutually exclusive,then P(A or B or C) is 0.279

<u>Solution: </u>

Given that probability of event A is P(A) = 0.072

Probability of event B is P(B) = 0.180

Probability of event C is P(C) = 0.027

Also event A, B and C are mutually exclusive.

Need to determine P( A or B or C )

For mutually exclusive events