2 years ago

each student desk holds 6 textbooks. if there are 12 desks in a room. How many textbooks can they hold altogether.

Mathematics

1 answer:

kogti [31]2 years ago

8 0

Answer:

Step-by-step explanation:

just times 6 by 12 to get the answer

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Is 1.52631579 a rational or irrational number

inna [77]

It is a rational nimber

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3 years ago

According to Vinay's model, what is the probability that he will have a male history teacher two years in a row?

BaLLatris [955]

Answer:

(3/8) ^2

Step-by-step explanation:

P ( male history teacher) = Number males/ total

= 3/8

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3 years ago

Solve 5x2-2x-8=0 using the quadratic formula.

choli [55]

Answer:

$x=\frac{1+\sqrt{41}}{5},\\x=\frac{1-\sqrt{41}}{5}$

Step-by-step explanation:

The quadratic formula states that the solutions for a quadratic is standard form $ax^2+bx+c$ are equal to $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ .

In $5x^2-2x-8=0$ , we can assign the values:

$a$ of 5
$b$ of -2
$c$ of -8

Thus, we have:

$x=\frac{-(-2)\pm \sqrt{(-2)^2-4(5)(-8)}}{2(5)},\\x=\frac{2\pm \sqrt{164}}{10},\\\begin{cases}x=\frac{2+ \sqrt{164}}{10}, x=\frac{1}{5}+\frac{\sqrt{41}}{5}=\frac{1+\sqrt{41}}{5}\\x=\frac{2- \sqrt{164}}{10}, x=\frac{1}{5}-\frac{\sqrt{41}}{5}=\frac{1-\sqrt{41}}{5}\end{cases}$