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bogdanovich [222]
3 years ago
10

Dan uses a remote control to make his drone take off from the ground. Function h represents the height, in feet, of the drone t

seconds after it begins flying.
Which statement correctly describes this situation?

A.
The drone is on the ground at 0 and 16 seconds.
B.
The drone is on the ground at 0 and 4 seconds.
C.
The drone is on the ground at 2 and 4 seconds.
D.
The drone is on the ground at 0 and 2 seconds.
Mathematics
2 answers:
jasenka [17]3 years ago
6 0

Answer: C.   The drone is on the ground at 0 and 4 seconds.

Step-by-step explanation:

Here the function that shows the height of the drone,

h(t) = -16(t-2)^2+64

Where t is the time in seconds.

Since, the drone is ground when, h(t) = 0

-16(t-2)^2+64=0

-16(t-2)^2 = -64   (by subtracting 64 from both sides 64)

(t-2)^2 = 4           (dividing both sides by -16 )

t^2-4t+4= 4        

t^2-4t= 0             (by subtracting 4 from both sides)

t(t-4)= 0      

⇒ t = 0 or t = 4  

Thus, Option C is correct.

LUCKY_DIMON [66]3 years ago
3 0
I think it’s c I am not sure
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I don't know if this is correct but id say

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Step-by-step explanation:

the interest is 2 % so you'd say 2/100 times the amount of money in the interest so that is 2% of 5500

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2 years ago
What theorem shows that TPN ≅ TQM?
melisa1 [442]

Note: Consider the side of first triangle is TQ instead of TA.

Given:

Triangles TQM and TPN which share vertex T.

TQ\cong TP,TM\cong TN

To find:

The theorem which shows that \Delta TPN\cong TQM.

Solution:

In triangle TQM and TPN,

TQ\cong TP        [Given]

\angle QTM\cong \angle PTN         [Given]

TM\cong TN        [Given]

Since two sides and their including angle are congruent in both triangles, therefore both triangles are congruent by SAS postulate.

\Delta TPN\cong TQM              [SAS]

Therefore, the correct option is C.

5 0
3 years ago
What is the constant rate of change in given equation Y= -5x *please Hurry*
statuscvo [17]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
1
Marianna [84]

Answer:

  B. {16, 19, 20}

Step-by-step explanation:

The <em>triangle inequality</em> requires for any sides a, b, c you must have ...

  a + b > c

  b + c > a

  c + a > b

The net result of those requirements are ...

  • the sum of the two shortest sides must be greater than the longest side
  • the length of the third side lies between the difference and sum of the other two sides

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If we look at the offered side length choices, we see ...

  A: 8+11 = 19 . . . not > 19; not a triangle

  B: 16+19 = 35 > 20; could be a triangle

  C: 3+4 = 7 . . . not > 8; not a triangle

  D: 5+5 = 10 . . . not > 11; not a triangle

The side lengths {16, 19, 20} could represent the sides of a triangle.

_____

<em>Additional comment</em>

The version of triangle inequality shown above ensures that a triangle will have non-zero area.

The alternative version of the triangle inequality uses ≥ instead of >. Triangles where a+b=c will look like a line segment--they will have zero area. Many authors disallow this case. (If it were allowed, then {8, 11, 19} would also be a "triangle.")

4 0
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The 10th grade is having a picnic this Friday. There will be 182 students and 274 adults. Each table seats 12 people. How many t
san4es73 [151]

Answer:

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Step-by-step explanation:

182 + 274 = 456

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4 0
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