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Tanzania [10]
3 years ago
6

An observation deck extends 311 feet out above a valley. The deck sits 261 feet above the valley floor. If an object is dropped

from the observation​ deck, its height h in​ feet, after t​ seconds, is given by h=-16t²+261. How long will it take for the object to be 5 feet above the valley​ floor?
Mathematics
2 answers:
Andreas93 [3]3 years ago
6 0

Answer:

4.12

Step-by-step explanation:

its 4.12 mark me brainiless

mamaluj [8]3 years ago
3 0

Answer:

  • 4 seconds

Step-by-step explanation:

<u>Find the value of t in the following equation:</u>

  • -16t² + 261 = 5
  • -16t² = - 255
  • t² = 255/16
  • t = √255/4 ≈ 4 seconds
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Korvikt [17]

Answer: C: Chuy will save more than he needs and will meet his goal at the end of 27 weeks.

Step-by-step explanation: Divide the amount of money saved, $440, by the number of weeks, 8.

440/8 = $55.

This means $55 is the amount of money Chuy saves every week.

Multiply $55 by the number of weeks Chuy plans to save money, 27.

55 x 27 = 1,485.

Since the television costs $1,350 dollars, Chuy will save more than he needs and will meet his goal in less than 27 weeks.

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2 years ago
Y=3x+4 y=36x+7 determine whether the graph of each pair of equations are parallel, pendicularbor neither
Len [333]
Parallel is the answer
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3 years ago
FIRST TO ANSWER GETS BRAINLIEST!!!!
mr_godi [17]

Answer:

(3,2)

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

4 0
3 years ago
Read 2 more answers
Look at the problems 2.3×3.68 and 23×368. How are they similar? Which problem has a greater product?
Margarita [4]

Here is your answer:

1. These equations are similar because they "both share the same numbers but one is a decimal and the other is a whole number."

2. You have to solve each equation in order to determine which number is greater:

  • 2.3\times 3.68
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And:

  • 23 \times 368 =
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Finally:

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Therefore "8,464 is greater than 8.464."

Hope this helps!

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Mashcka [7]

Answer:

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Step-by-step explanation:

Uh you can keep your brains.

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