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Kaylis [27]
3 years ago
9

NEED HELP!!!!! Heres the question

Mathematics
1 answer:
Semenov [28]3 years ago
3 0

Answer:

A. 5(-20)

Step-by-step explanation:

Since she repeatedly withdrawals money, the answer would be negative, so you can say that the other answers are definitely wrong.

Hope this helps :)

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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
13/15 is equal to or less than or greater than 0.5
Bess [88]

Answer:

Greater Than

Step-by-step explanation:

Half of 15 is 7 1/2 and 13 is greater than 7 1/2

5 0
1 year ago
Plsssss help!!!!! I’m rewarded a lot of points.
tensa zangetsu [6.8K]
This is all the picture showed omg toooo hard
3 0
2 years ago
Together, teammates Pedro and Ricky got 2689 base hits last season. Pedro had 285 more hits than Ricky. How many hits did each p
STALIN [3.7K]
Pedro had 1487 hits
Ricky had 1202 hits

2688/2=1344.5
285/2=142.5
1344.5-142.5=1202 (Ricky)
1344.5+142.5=1487 (Pedro)
1487-1202=285
1487+1202=2689
7 0
3 years ago
A car can travel 396 miles on 22 gallons of gasoline.how much gasoline will it need to go 468 miles?
STatiana [176]

Answer:

396 miles / 22 gallons = 18 miles per gallon

468 miles / 18 miles = 26 gallons of gasoline

What I did is I took the number of miles and divided it by the number of gallons to find how many gallons of gasoline were used per mile. Then I took that number of miles and divided 468 by it because that's the number of gallons we are trying to find. We ended up with 26 gallons of gasoline for 468 miles.

7 0
3 years ago
Read 2 more answers
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