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mel-nik [20]
2 years ago
6

An object is launched into the air. The projectile motion of the object can be modeled using the function h(t) = –16t2 + 72t + 5

, where t is the time in seconds since the launch and h(t) represents the height in feet of the object after t seconds. What is true about the projectile motion of this object?

Mathematics
1 answer:
Setler79 [48]2 years ago
7 0

I dont know if this might help

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What is the difference between a slope change and a translation
romanna [79]

Answer:

Translation describes movement of an object without change of size where as the change in slope describes the variation in steepness of an object. Step-by-step explanation: ... Slope is the ratio of vertical and horizontal changes between two points on a surface or line.

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2 years ago
The cost of 9 scarves is $65.25. What is the unit price?<br><br> The unit price is $____ per scarf.
Strike441 [17]

Answer:

7.25 each or 7.00 if rounded

Step-by-step explanation:

3 0
2 years ago
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In △ABC, m∠ABC=40°,
Alchen [17]

Let m∠CLN = x. Then m∠ALM = 3x, and m∠A = 90°-x, m∠C = 90°-3x.

The sum of angles of ∆ABC is 180°, so we have

... 180° = 40° + m∠A + m∠C

Using the above expressions for m∠A and m∠C, we can write ...

... 180° = 40° + (90° -x) + (90° -3x)

... 4x = 40° . . . . . . . . . add 4x-180°

... x = 10°

From which we conclude ...

... m∠C = 90°-3x = 90° - 3·10° = 60°

The ratio of CN to CL is

... CN/CL = cos(∠C) = cos(60°)

... CN/CL = 1/2

so ...

... CN = (1/2)CL

5 0
2 years ago
The projectile motion of an object can be modeled using s(t) = gt2 + v0t + s0, where g is the acceleration due to gravity, t is
NeX [460]
S(t) =  -4.9t^2 + 19.6t + 24.5

when it reaches the ground s(t) = 0 


so we have -4.9t^2 + 19.6t + 24.5 = 0

solve this for t:-

-4.9(t^2 - 4t - 5) = 0

(t + 1)(t - 5) = 0

so required time t = 5 seconds  

answer 5 seconds

5 0
2 years ago
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Ethan enjoys buying books and going to the movies. He has income of $150 to spend on these two goods each month. The price of a
erica [24]

Answer: A

Step-by-step explanation:

A.) the substitution effect would predict Ethan would consume less books and more movies and the income effect would predict he would consume less of both.

B.) the substitution and income effects would both predict Ethan would consume less of both goods.

C.) the substitution effect would predict Ethan would consume more books and less movies, and the income effect would predict he would consume less of both.

D.) the substitution and income effects would both predict Ethan would consume more of both goods.

If he continuos to buy 4 books ans 6 movies the total amount is $170, that he does not have. He has to buy less books or go less to the movies.

A global efect of a certain good (X) price rise can be divided into 2 efects:

  • substitution effect: indicates a demand reduction of X, resulting from the price rise, making X less atractive to consumption
  • income effect: indicates a reduction of the demanded quantity of X resulting from the reduction of the acquisition power created by the rise of X price.

So, answer is A.

5 0
2 years ago
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