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MissTica
3 years ago
10

If a ball is thrown into the air with a velocity of 46 ft/s, its height in feet t seconds later is given by y = 46t − 16t2.

Mathematics
1 answer:
Zina [86]3 years ago
8 0

Answer:

Step-by-step explanation:

you want maximum height reached?

\frac{dy}{dt} =46-32t\\\\at max. height velocity=0\\ 0=46-32t\\32 t=46\\t=46/32=23/16\\y=t(46-16t)\\ at t=\frac{23}{16} \\ y=\frac{23}{16}(46-16*\frac{23}{16} )\\\\y=\frac{529}{16} ft

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3 years ago
Gabriel is driving 80 kilometers in one hour. How many kilometers does he drive in 1.5 hours
gogolik [260]

Answer:

He drove 120 km

Step-by-step explanation:

We know that 1 hour of driving is equal to 80 km. We need to find out for 1.5 km. First, we need to know how much km for 1/2 of an hour. Which will be 40, because 80/2=40. Then we add up the 40 to the 80, and we get 120 km in total.

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There are 3 red, 1 blue, and 2 yellow marbles in a bag. Once a marble is selected, it is not replaced. Find P(red and the yellow
Ivenika [448]

Answer:

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Step-by-step explanation:

we add all the marbles together to get 6

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5 0
2 years ago
Read 2 more answers
7x -3(2x + 1) = 5-3x
Damm [24]

Answer:

2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7x−3(2x+1)=5−3x

7x+(−3)(2x)+(−3)(1)=5+−3x(Distribute)

7x+−6x+−3=5+−3x

(7x+−6x)+(−3)=−3x+5(Combine Like Terms)

x+−3=−3x+5

x−3=−3x+5

Step 2: Add 3x to both sides.

x−3+3x=−3x+5+3x

4x−3=5

Step 3: Add 3 to both sides.

4x−3+3=5+3

4x=8

Step 4: Divide both sides by 4.

4x

4

=

8

4

x=2

Hoped I helped -

Sleepy~

7 0
3 years ago
Read 2 more answers
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