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gizmo_the_mogwai [7]
3 years ago
12

The height of an object thrown upward with an initial velocity of 32 feet per second is given by the formula h = −16t2 + 32t, wh

ere t is the time in seconds. How long will it take the object to reach a height of 16 feet?
Mathematics
1 answer:
andre [41]3 years ago
6 0

Answer:

Therefore  after 1 second of lunched the object reach a height of 16 feet.

Step-by-step explanation:

When a particle is thrown vertically upward direction on that time only gravitation force is worked on it. In that case the acceleration of the particle is - g.Since gravitation force works downward direction and the displacement of the particle is upward direction that's why acceleration is negative.

When particle comes down the the acceleration of the particle is g.

Since the displacement and acceleration work on the particle in same direction.

The value of g is 9.8 m/s².

Given that, the height of the particle can measure from the equation

h=-16t^2+32t       Where t is time in second

To find out the time when the object reach a height 16 feet. We have put the value of h in the given equation.

Putting h=16 in the given equation

16= -16 t²+32

⇒16t²-32t+16=0

⇒16(t²-2t+1)=0

⇒t²-2t+1=0²         [ ∵16≠0]

⇒(t-1)²=0

⇒t-1=0

⇒t=1

Therefore  after 1 second of lunched the object reach a height of 16 feet.

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Bas_tet [7]

Answer:

10.6

Step-by-step explanation:

13+10.6= is 23.6

Hope this helps

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3 years ago
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A music store sells electric guitars in 3 colors and 2 sizes. How many different guitar can you buy
matrenka [14]

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the answer is 6

Step-by-step explanation:

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5 0
3 years ago
How many ways can a president, vis-president and treasurer be selected from a group of 15 students?
dybincka [34]

Answer:

455ways

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8 0
3 years ago
Use the function f(x)=2x^3-3x^2+7 to complete the exercises
Anastaziya [24]

To answer this set of questions, all we have to do is just to substitute the value of x in F(x) to the given f(x) equation. 

By substitution and following PEMDAS rule:<span>
F(-1)=2(-1)³-3(-1)²+7=5</span>

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<span> </span>

8 0
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Anita got 4 problems wrong on a test of 36 questions. what percent of the questions did she get correct
pickupchik [31]
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so you put 32 over 36 ( the number she got right over the total number of questions ) and n ( the number you don't know yet ) over 100 . that will be the percent .
next all you have to do is cross multiply 32 times 100 and 36n , to get 3200 and 36n . 
now you have to divide 3200=36n by 36 so you get n by its self but you have to divide on both sides of the equal sign .
when you divide you will then get 88 with a lot of remainder 8's so you would just round up to 89 .
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4 0
3 years ago
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