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irga5000 [103]
3 years ago
15

Which statements are true about the linear inequality y > 3/4x – 2? Check all that apply. The slope of the line is –2. The gr

aph of y > 3/4 x – 2 is a dashed line. The area below the line is shaded. One solution to the inequality is (0, 0). The graph intercepts the y-axis at (0, –2).

Mathematics
1 answer:
pishuonlain [190]3 years ago
4 0
You can draw the area bounded by the unequality y\ \textgreater \  \frac{3}{4} x-2 in following way:

1. Draw a dashed line y=\frac{3}{4} x-2 with a slope \frac{3}{4} (a dashed, because all points from this line, for example when x=0, y=-2 do not belong to the area);

2. Define which part (under the line or over the line) is suitable by substituting values. For example, when x=0 and y=0 you obtain that 0\ \textgreater \  \frac{3}{4} \cdot 0-2 is a right unequality, that means that the point (0,0) is a solution and belongs to the area;

3. Shade that part of the plane to which point (0,0) belongs, you receive the area over the line (see image).

From the done steps you can see that only fourth statement is true.



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Step-by-step explanation:

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Which is an example of an algebraic expression? A. 2k + 25 B. z – 8 = 44 C. 3 + 7 = 10 D. 76 – 10
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3 years ago
Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade. Mrs. Benson has how many math assignmen
timofeeve [1]

Mrs. Benson has 184 math assignments left to grade.

<u>Step-by-step explanation:</u>

Here we have , Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade.We need to find Mrs. Benson has how many math assignments left to grade. Let's find out:

Let total Number of math assignments be x , So According to question 46 math assignments are graded & 80% are left i.e.

⇒ x = 46+\frac{80x}{100}

⇒ x -\frac{80x}{100}= 46

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⇒ \frac{20x}{100}= 46

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4 0
3 years ago
It is an unfair coin with unknown probability of head and tail. Can you generate even odds using this coin?
Vladimir79 [104]

Answer:

Yes, it can be generated if p = \frac{n}{n+1}, where n is a positive even integer.

Step-by-step explanation:

An odds for an event, is the probability or chance that this event will occur, divided by the probability that it will not occur.

Assume that the probability of getting tail when throwing the coin is p, therefore, the probability of getting a head is (1-p) and the odds for the event of getting tail is \frac{p}{1-p}.

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\frac{p}{1-p} = 2k

p = 2k - 2kp

p = \frac{2k}{2k+1}

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3 years ago
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