HELP ME ASAP PLEASE!!!!

Mathematics

1 answer:

Wewaii [24]3 years ago

6 0

-(1/2)p<-16

Divide both sides by the coefficient of p. Flip the inequality sign because you are dividing a negative number.

p>32

Final answer: A

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carlos and his crew build small wooden packing crates at a rate of 52 cates per hour how many crates can they build in 6 1/2 hou

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6 0

2 years ago

Xsquared+1/20x-1/20 so I need that to be solved any way possible

VARVARA [1.3K]

Hallo ^_^

Quadratic Equation :
ax² + bx + c = 0

From the task :
x² + 1/20 x = 1/20

Switch sides :
x² + 1/20x - 1/20 = 0

Multiple each sides by 20
20(x² + 1/20x - 1/20) = 0(20)
⇒ 20x² + x - 1 = 0

From that :
a = 20, b = 1 and c = - 1

Solve x using quadratic formula :

$x_1x_2 = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitution using the formula :

$x_1x_2 = \frac{-1 \pm \sqrt{1^2-4(20)(-1)}}{2(20)} \\\\
x_1x_2 = \frac{-1 \pm \sqrt{81}}{40} \\\\
x_1x_2 = \frac{-1 \pm 9}{40} \\\\

x_1 = \frac{- 1 + 9}{40} \\\\
x_1 = \frac{8}{40} \\\\
x_1 = \frac{1}{5} \\\\

x_2 = \frac{- 1 - 9}{40} \\\\
x_2 = \frac{-10}{40} \\\\
x_2 = - \frac{1}{4} \\\\

\therefore \boxed{x = \frac{1}{5} \ or \ x =- \frac{1}{4}}$

Sorry for my bad english :)

5 0

2 years ago