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boyakko [2]
3 years ago
7

(Photo attached) Parametric Equations. Thank you for your help!

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Step-by-step explanation:

cos^2(t)+sin^2(t)=1

4cos^2(t)/4 + 81sin^2(t)/81 =1

2^2(cos^2(t))/2^2 + 9^2(sin^2(t))/9^2=1

[2cos(t)]^2/2^2 +[ 9sin(t)]^2/9^2=1

since x^2/2^2 +y^2/9^2=1

X=2cos(t) ,y=9sin(t)

X(t)= 2cos(t) here r=2

y(t)=9sin(t)

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Brainly please help I been asking
IrinaVladis [17]

Answer:

114

Step-by-step explanation:

break apart the shape into 2 smaller shapes and you'll get 15 and 4 for the 1st shape multiply them and you'll get 60. Then for the second shape you'll get 6 and 9 multiply them and you'll get 54. Last add them together and you get 114. (Sorry if I get it wrong)

6 0
3 years ago
5 A dangerous criminal has escaped from
zepelin [54]

Answer:

314 mile²

Step-by-step explanation:

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4 0
3 years ago
Please help quickly I’m being timed
ollegr [7]
It’s a
Distribute the exponent to each term, then move your negative exponents to the opposite side then simplify.
4 0
3 years ago
The rectangular field has a perimeter of 98 meters. The width of the perimeter is three times as much as five times the length.
White raven [17]

Answer:

a) x = 3.0625m

  y = 45.9375 m

b) A = 140.68359375 m²

Step-by-step explanation:

Let x be the length

Let y be the width

2x + 2y = 98

x + y = 49

y = 3(5x)

y = 15x

x + 15x = 49

16x = 49

x = 3.0625 m

y = 15(3.0625) = 45.9375

A = xy = 3.0625(45.9375) = 140.68359375

4 0
3 years ago
To rent a certain meeting room a college charges a reservation fee of $33 and an additional fee of $9.80 per hour the club wants
sammy [17]

Answer:

They must rent for less than 7 hours

Step-by-step explanation:

The charge for the room is the fee plus the hourly rate times the hour

f = 33+9.80t

This must be less than 101.60

101.60> 33+9.80t

Subtract 33 from each side

101.60-33> 33-33+9.80t

68.6> 9.80t

Divide each side by 9.8

68.8/9.8 > t

7>t

They must rent for less than 7 hours

7 0
3 years ago
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