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3 years ago

10

Never mind. I meant these problems. Please find the mean, median, and mode.

1 answer:

Sergio [31]3 years ago

8 0

Median mean to find the center of the data

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Discuss how the students saving accounts work

elena-s [515]

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4 years ago

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5x and x+5 is this equivalent if so explain even if it isn’t still explain lol

GalinKa [24]

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tinyurl.com/wpazsebu

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3 years ago

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Use a quadratic equation to find two real numbers with a sum of -43 and a product of 306.

vlabodo [156]

Answer:

Real numbers = 39 and 9

Step-by-step explanation:

The standard form of a quadratic equation is ax² + bx + c = 0

Given the following data;

a = 1

b = -43

c = 306

Quadratic equation formula is;

$x = \frac {-b \; \pm \sqrt {b^{2} - 4ac}}{2a}$

Substituting into the equation, we have;

$x = \frac {-(-43) \; \pm \sqrt {43^{2} - 4*1*306}}{2*1}$

$x = \frac {43 \pm \sqrt {1849 - 1224}}{2}$

$x = \frac {43 \pm \sqrt {625}}{2}$

$x = \frac {43 \pm 25}{2}$

$x_{1} = \frac {43 + 25}{2}$

$x_{1} = \frac {68}{2}$

$x_{1} = 39$

$x_{2} = \frac {43 - 25}{2}$

$x_{2} = \frac {18}{2}$

$x_{2} = 9$

Therefore, the two real numbers are 39 and 9.

The quadratic equation now becomes;

x² - 43x + 306 = (x - 39)(x - 9) = 0

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3 years ago

The price of an item has dropped to$63 today.Yesterday it was $140.find the percentage decrease

Rashid [163]

Answer:

55% drop.

Step-by-step explanation:

To find this first divide 63 by 140 to get .45. Then multiply this value by 100 to get a value of 45%. Then you know that 55% is the amount dropped.

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3 years ago

A pizza parlor has a special on a three-topping pizza. How many different special pizzas can be ordered if the parlor has 8 topp

kupik [55]

I think the answer is 24

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