3 years ago

Checks are stale dated when

Mathematics

2 answers:

lys-0071 [83]3 years ago

5 0

it was written more than six months prior to being presented to a bank or other financial institution.

lina2011 [118]3 years ago

4 0

My guess is before the current date but not sure hope that helped and sorry I could not do more and always good luck

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Grant pays 10 cents per minute plus $5 per month for telephone long distance. Write an algebraic expression for m minutes of lon

dolphi86 [110]

The question is asking for the amount of minutes Grant can possibly use in a month. So to algebraically express this, the equation, 0.10 m+5=$ sums it up.

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3 years ago

Match the equation with the step needed to solve it.

viva [34]

1) Subtract 2m
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3 years ago

Solve the equation on the interval [0, 2pi): 12cos^2 x-9=0 What to do?

siniylev [52]

Answer:

$\large\boxed{x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}}$

Step-by-step explanation:

$12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}$