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Rufina [12.5K]
2 years ago
11

The height of a stuntperson jumping off a building that is 20 m high is modeled by the equation h = 20 – 5t2, where t is the tim

e in seconds. A high-speed camera is ready to film the person between 15 m and 10 m above the ground. For which interval of time should the camera film the person
Mathematics
2 answers:
Nostrana [21]2 years ago
8 0

Answer:

\sqrt{2} - 1

Step-by-step explanation:

h = 20 – 5t2 = 15 -> t = 1

h = 20 – 5t2 = 10 -> t = \sqrt{2}

interval  \sqrt{2} - 1

natta225 [31]2 years ago
4 0

Answer:

B

Step-by-step explanation:

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<h2>194 / 2 = 97 </h2>
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3 years ago
This year consumers purchased 5,234,267,990 bottles of water. Last year
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Step-by-step explanation:

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2 years ago
How many hours and minutes is 14,096 seconds equal to?<br><br> (Please help, thanks!)
Fittoniya [83]

Answer:

234.93 minutes. Divide by 60 and you get 3 hours almost 4.

Step-by-step explanation:

4 0
2 years ago
Find the area of circle Y. The image is represented by circle Y with a sector XYZ that has an area of 85.5 square meters. That s
pochemuha

Answer:

  263.08 m²

Step-by-step explanation:

The fraction of circle area that a sector represents is proportional to the central angle.

<h3>Proportion</h3>

  circle area/circle angle = sector area/sector angle

  circle area / 360° = 85.5 m² / 117°

Multiplying by 360°, we have ...

  circle area = (360/117)(85.5 m²) = 263.08 m²

The area of the circle is about 263.08 m².

6 0
1 year ago
Write in standard form (×+4)(×-5)=4 find the value of a,b,c​
Alex17521 [72]

Answer:

x^{2} - x - 24 = 0

a = 1

b = 1

c = -24

Step-by-step explanation:

(x + 4)(x - 5) = 4

x(x - 5) = x^{2} - 5x

4(x - 5) = 4x - 20

x^{2} - 5x + 4x - 20 = 4

x^{2} - x - 20 = 4

x^{2} - x - 20 - 4 = 0

x^{2} - x - 24 = 0

a = 1

b = 1

c = -24

4 0
3 years ago
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