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Vera_Pavlovna [14]
2 years ago
13

Rational Numbers:Question 7

Mathematics
1 answer:
nevsk [136]2 years ago
5 0

Answer:

<em>-5, -3 = Quadrant |||</em>

Step-by-step explanation:

-3, 5 = Quadrant ||

4, 2 = Quadrant |

2, -4 = Quadrant |||| (Quadrant |||| is also known as Quadrant IV)

<u><em>~ LadyBrain</em></u>

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Distributive, if you do 4 times x and 4 times 2 you get 4x+8
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A town is planning a playground. It wants to fence in a rectangular space using an existing wall. What is the greatest area it c
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Answer:

1250 ft^{2}

Step-by-step explanation:

We are given that the playground is fenced on three sides of the playground and the four side has an existing wall.

Let the length of the rectangle be 'X' feet and width be 'Y' feet.

As the fencing is done using 100 feet of fence. We get the relation between the sides and the fence as, X + 2Y = 100.

As, X + 2Y = 100 → X = 100 - 2Y

Now, the area of the rectangle = XY = X × ( 100 - 2Y ).

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The general form of a quadratic equation is y=ax^{2}+bx+c.

The maximum value of a quadratic equation is given by x=\frac{-b}{2a}.

Therefore, the greatest value of -2Y^{2} +100Y is at Y = \frac{-100}{2 \times -2} = \frac{-100}{-4} = 25.

Thus, Y = 25 and X = 100 - 2Y → X = 100 - 2 × 25 → X = 50.

Hence, the area of the rectangle is XY = 50 × 25 = 1250 ft^{2}.

3 0
3 years ago
Graham sold six magazines less than double what Adriannne sold, a. Which of the following expressions represents Graham’s sales
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The best and most correct answer among the choices provided by your question is the fourth option or letter D. The expression that represents Graham's sales is 2a − 6. Twice the sales of Adrianne, deducted by 6 should be Graham's sales.

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Click once to choose an answer. Click again to change your answer. Choose all that locate the ordered pair in the correct quadra
forsale [732]

Answer:

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Quadrant\ I = (9, 11)

Quadrant\ II = (-1, 3)

Quadrant\ III = (-2, -4)

Step-by-step explanation:

Given

Quadrant\ IV = (5, -3)

Quadrant\ II  = (-4, -8)

Quadrant\ I = (9, 11)

Quadrant\ II = (-1, 3)

Quadrant\ III = (-2, -4)

Required

Determine which coordinate fall in the right quadrant

First, we split the each quadrant into x and y axis

In the first:

x and y is +

In the second:

x is - and y is +

In the third

x and y are -

In the fourth

x is + and y is -

Comparing the given coordinates to their respective quadrants, base on the conditions stated above

Quadrant\ IV = (5, -3)  is correct

Quadrant\ I = (9, 11) is correct

Quadrant\ II = (-1, 3) is correct

Quadrant\ III = (-2, -4) is correct

Quadrant\ II  = (-4, -8) is incorrect

3 0
3 years ago
In a standardized IQ test, scores are normally distributed with a mean score of 100 and a standard deviation of 15. Find the pro
Zanzabum

Answer:

0.0475

Step-by-step explanation:

First find the z-score.

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Use a calculator or chart to find the probability.  Using a chart:

P(Z > 1.67) = 1 − P(Z < 1.67)

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P(Z > 1.67) = 0.0475

8 0
3 years ago
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