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3 years ago

12

Mathematics

2 answers:

zysi [14]3 years ago

4 0

Answer:

A) 700 minutes

Step-by-step explanation:

50 + 0.25x = 225

0.25x = 175

x = 700

Let me know if you have questions

just olya [345]3 years ago

3 0

Answer:

700 MINUTES

Step-by-step explanation:

Your initial fee is $50.00 so you must subtract $50.00 from $225.00 which will give you $175.00, then you will divide $175.00 by 0.25 per minute, you should end up with 700, which will be 700 minutes.

$225.00 - $50.00 = $175.00

$175.00 divided by $0.25 = 700 minutes

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Step-by-step explanation:

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3 years ago

HELP WITH THESE QUESTIONS PART 2.

polet [3.4K]

Answer: (a) IV (b) positive (c) $\frac{\pi}{4}$ (d) C (e) $\sqrt{2}$

Step-by-step explanation:

a) $\frac{15\pi}{4}$ - $\frac{8\pi}{4}$ = $\frac{7\pi}{4}$ , which is located in Quadrant IV per the Unit Circle.

b) sec is $\frac{1}{cos}$ . Cos is the x-coordinate. The x-coordinate inQuadrant IV is positive.

c) the reference angle is the angle from $\frac{7\pi}{4}$ to 2π = $\frac{\pi}{4}$

d) since the angle is below the x-axis and the reference angle is $\frac{\pi}{4}$ , then the angle is equal to $-sec(\frac{\pi}{4}$ )

e) sec = $\frac{1}{cos}$ ⇒ sec $\frac{7\pi}{4}$ = $\frac{2}{\sqrt{2} }$ = $\frac{2}{\sqrt{2} }$ $(\frac{\sqrt{2}} {\sqrt{2}})$ = $\frac{2\sqrt{2} }{2}$ = $\sqrt{2}$