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m_a_m_a [10]
2 years ago
12

A dolphin jumps out of the water with an initial velocity of 20 feet per

Mathematics
1 answer:
Ivanshal [37]2 years ago
8 0

Answer:

1.6 Seconds

Step-by-step explanation:

The equation would be h(t)=-16t^2+20t+8 since 20 is the velocity, and once you input that onto a graph the answer of when it hits the ground is 1.569 seconds, so rounded is 1.6 seconds.

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Hozumi recorded the daily high temperatures for an 18-day period in the table shown please I need this really badly
mr Goodwill [35]

Answer:

the answer is letter A

Step-by-step explanation:

7 0
3 years ago
Researchers are interested in the effect of a certain nutrient on the growth rate of plant seedlings. Using a hydroponics growth
emmainna [20.7K]

Answer:

\bar{x}=61.98

Step-by-step explanation:

The sample mean \bar{x} is a point estimate of the population mean μ.

Given the heights of the 6 tomato plants sample below:

55.6, 59.4, 59.9, 62.9, 64.9, 69.2

Point Estimate,

\bar{x}=\dfrac{55.6+59.4+59.9+62.9+64.9+69.2}{6} \\=\dfrac{371.9}{6} \\\bar{x}=61.98

4 0
3 years ago
Ms.kendrick plans to buy a laptop for $1,345 in 12 weeks. she has already saved $145. how much should she save each week so she
denpristay [2]
12x + 145 = 1345
12x = 1200
    x = 100

answer: <span> She should save $100 each week so she can buy the laptop </span><span> for $1,345</span>
6 0
3 years ago
Read 2 more answers
Customers at an ice-cream shop took a survey. The results showed that 144 customers rated the shop as being “very satisfactory.”
Oksana_A [137]

Answer:

320 Customers took the survey

Step-by-step explanation:

6 0
3 years ago
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A ball is thrown into the air with an upward velocity of 32 ft/s. Its height (h) in feet after t seconds is given by the functio
Natasha2012 [34]
For this case we have the following equation:
 h = -16t ^ 2 + 32t + 6
 Deriving we have:
 h '= -32t + 32
 We equal zero and clear t:
 -32t + 32 = 0
 32t = 32
 t = 32/32
 t = 1 s
 Then, the maximum height is given by:
 h (1) = -16 * (1) ^ 2 + 32 * (1) + 6
 h (1) = 22 feet
 Answer:
 
It takes the ball to reach its maximum height about:
 
t = 1 s
 
The ball's maximum height is:
 
h (1) = 22 feet
6 0
3 years ago
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