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MAVERICK [17]
3 years ago
15

Dylan walks into a video arcade with a pocketful of quarters. He spends them at a rate of nine every half hour until he runs out

. If the amount of quarters Dylan has is graphed over time, which feature of the graph corresponds to Dylan’s initial amount of quarters, before he spends the first one? *
Mathematics
1 answer:
jok3333 [9.3K]3 years ago
4 0

Answer: The answer is A, y-intercept.

Step-by-step explanation:

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R = sec(θ) − 2cos(θ), where -π/2 < θ < π/2
Alex

Answer:

  y = (x/(1-x))√(1-x²)

Step-by-step explanation:

The equation can be translated to rectangular coordinates by using the relationships between polar and rectangular coordinates:

  x = r·cos(θ)

  y = r·sin(θ)

  x² +y² = r²

__

  r = sec(θ) -2cos(θ)

  r·cos(θ) = 1 -2cos(θ)² . . . . . . . . multiply by cos(θ)

  r²·r·cos(θ) = r² -2r²·cos(θ)² . . . multiply by r²

  (x² +y²)x = x² +y² -2x² . . . . . . . substitute rectangular relations

  x²(x +1) = y²(1 -x) . . . . . . . . . . . subtract xy²-x², factor

  y² = x²(1 +x)/(1 -x) = x²(1 -x²)/(1 -x)² . . . . multiply by (1-x)/(1-x)

  \boxed{y=\dfrac{x\sqrt{1-x^2}}{1-x}}

__

The attached graph shows the equivalence of the polar and rectangular forms.

4 0
2 years ago
Which value of x makes 7+5(x-3)=227+5(x−3)=22 a true statement?
Greeley [361]

Answer: Your input has more than one equals sign.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve - y = 34. Then graph the solution.
inysia [295]

divide both sides by a negative one to get ride of the -y then on your graph it be a horizontal line at the point (0,-34)

8 0
3 years ago
Give the unit rate for the better deal.<br><br> $81<br> 25 gal<br> or <br> $62.05<br> 20 gal
Elan Coil [88]

Answer:

$62.05 for 20 gallons

Sorry if I didn't get it correct. I don't really understand how you worded your question. <3

Step-by-step explanation:

$81 for 25 gallons =

81/25 = $3.24 for 1 gallon

$62.05 for 20 gallons =

62.05 / 20 = $3.10 for 1 gallon

6 0
3 years ago
Which of the following would be an acceptable first step in simplifying the expression:
Aleks04 [339]
The correct answer is tanx(1-secx)/(1+secx)(1-secx)
6 0
3 years ago
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