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Anon25 [30]
4 years ago
11

Convert r = 8cos θ to rectangular form.

Mathematics
1 answer:
skelet666 [1.2K]4 years ago
8 0

Answer:

D

Step-by-step explanation:

To convert from polar to rectangular form

• x = rcosΘ , y = rsinΘ

• r = \sqrt{x^2+y^2} ⇒ r² = x² + y²

Given

r = 8cosΘ

r = 8 × \frac{x}{r} ( multiply both sides by r )

r² = 8x, hence

x² + y² = 8x ⇒ D

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eduard

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Step-by-step explanation:

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3 years ago
Jacob spent 3 hours skiing and snowboarding. He skied for 1 hours 25 minutes. How long did he spend snowboarding?
lord [1]

Answer:

Hours spent for snowboarding = 1 hour 35 minutes

Step-by-step explanation:

Total hours spent for skiing and snowboarding = 3 hours

Hours spent for skiing = 1 hours 25 minutes

How long did he spend snowboarding?

Hours spent for snowboarding = Total hours spent for skiing and snowboarding - Hours spent for skiing = 1 hours 25 minutes

= 3 hours - 1 hours 25 minutes

1 hour = 60 minutes

3 hours = 180 minutes

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3 hours - 1 hours 25 minutes

= 180 minutes - 85 minutes

= 95 minutes

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3 0
3 years ago
6. Find the missing value. Show your work.
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y = 9.3
4 0
3 years ago
Dan wants to grow new grass in his yard. The yard is 12 feet by 20 feet. 1 package of grass seed will cover 50 square feet. Dete
ozzi
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how many packages?
1 pack times x is at least 240
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divide both sides by 50
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3 0
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Read 2 more answers
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Answer:

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Step-by-step explanation:

7 0
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