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Umnica [9.8K]
3 years ago
8

Find f(3) if f(x)=-3x-6

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

Answer:

-3(3)-6=-15

Step-by-step explanation:

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What is 8n-(2n-3)=12 ?
bixtya [17]
Okay luv so let's solve this equation together:
8n-(2n-3)=12
simplify
8n+-1(2n-3)=12
8n+-1(2n)+(-1)(-3)=12
8n+-2n+3=12
(8n+-2n)+(3)=12 Combine like terms
6n+3=12
Then subtract from both sides
6n+3-3=12-3
6n=9
Then divide both sides by 6
6n/6=9/6
so...n=3/2


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Step-by-step explanation:

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Declan ran 500 meters in 5 minutes . calculate the unit rate​
SIZIF [17.4K]

Answer:

100 meters in 1 minute

Step-by-step explanation:

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When an object is thrown upwards with a speed of 64 ft/sec, its height above the ground is given by the function h(t)=−16t2+64t
Svet_ta [14]

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

v(t) = \frac{d}{dt}h(t) (1)

Where v(t) is the velocity of the object at time t, in feet per seconds.

If we know that h(t) =-16\cdot t^{2}+64\cdot t and v(t) = 0\,\frac{ft}{s}, then the time when object reaches its highest point is:

v(t) = -32\cdot t+64

-32\cdot t + 64 = 0

t = 0.5\,s

The object will reach its highest point 0.5 seconds after it has been thrown.

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2 years ago
Ratio 90kg to 2 : 3 : 7
adoni [48]

Answer:

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Step-by-step explanation:

The Answer is 158

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