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Mrrafil [7]
3 years ago
6

The braking distance, D, of a car is directly proportional to the square of its speed, v. When d=5, v=10

Mathematics
1 answer:
Ivenika [448]3 years ago
5 0

Answer:

<h2>          d = 245</h2>

Step-by-step explanation:

d is directly proportional to the square of a speed v

d = av²

5 = a•10²

5 = 100a

a = 0.05

d = 0.05v²

d = 0.05•70²

d = 0.05•4900

d = 245

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rjkz [21]

The fish is 2.25 ft above the water surface.

Step-by-step explanation:

  • Step 1: Given expression for height of the fish above the water surface,  y = -16x² + 12x where x is time in seconds. Find height after 0.375 seconds

⇒ y = -16(0.375)² + 12 × 0.375

     = -2.25 + 4.5

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4 0
3 years ago
X+(x+1)+(×+2)=336. the question is the sum of three consecutive integers is 336​
vodomira [7]

Answer:

x = 111

Step-by-step explanation:

1.) x + (x + 1) + (x + 2) = 336

2.) x + x + 1 + x + 2 = 336

3.) 3x + 3 = 336

4.) 3x = 333

4.) x = 111

Check Work:

1.) 111 + (111 + 1) + (111 +2) = 336

2.) 111 + 111 + 1 + 111 + 2 = 336

3. ) 222 + 1 + 111 + 2 = 336

4.) 222 + 114 = 336

5.) 336 = 336

6 0
3 years ago
there are 10 less trumpet players than saxophone players. The number if saxophone players is 3 times the number of trumpet playe
cluponka [151]

<em>Answer: There are 5 trumpet players and 15 saxophone player</em>


<em>Step-by-step explanation: Let a be the number of trumpet players </em>

<em>Let b be the number of saxophone players </em>

<em>--------------------- </em>

<em>(1) a = b-10 </em>

<em>(2) b =3a </em>

<em>---------------- </em>

<em>Substitute  </em>

<em>(2) into (1) </em>

<em>(1) a =3a-10 </em>

<em>(1) 2a =10  </em>

<em> </em>

<em> (1) a = 5and </em>

<em>(2) b = 3(5)(2)  </em>

<em>b =  15 </em>

<em>------------------ </em>

<em>There are 5 trumpet players and 15 saxophone player</em>


5 0
3 years ago
The diagram is a floor plan for a new building. Find the perimeter.
lara31 [8.8K]

Answer:

154

Step-by-step explanation:

perimeter is the area all round, basically you sum all the measurements

4 0
2 years ago
Read 2 more answers
What os the domain of the given function
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I need to see the function In order to do this
6 0
3 years ago
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