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2 years ago

Question 11 plz, really need help

Mathematics

2 answers:

madam [21]2 years ago

7 0

Answer:

ummm hold on im trying to figure it out sorry might take long

fgiga [73]2 years ago

7 0

I’m trying to see ,

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Please Help me!!!

drek231 [11]

Step-by-step explanation:

The displacement of a particle d (in km) as a function of time t (in hours) is given by :

$d=2t^3+5t^2-3$

Displacement at t = 4 hours,

$d(4)=2(4)^3+5(4)^2-3=205\ km$

Velocity of particle is given by :

$v=\dfrac{dd}{dt}\\\\v=\dfrac{d(2t^3+5t^2-3)}{dt}\\\\v=6t^2+10t$

Velocity at t = 4 hours,

$v=6(4)^2+10(4)=136\ km/h$

Acceleration of the particle is given by :

$a=\dfrac{dv}{dt}\\\\a=\dfrac{d(6t^2+10t)}{dt}\\\\a=12t+10$

At t = 4 hours,

$a=12(4)+10=58\ km/h^2$

Therefore, the displacement, velocity and acceleration at t = 4 hours is 205 km, 136 km/h and 58 km/h² respectively.

7 0

3 years ago

Find the surface area of the pyramid

cricket20 [7]

Answer:

32√3

Step-by-step explanation:

I hope this helps... if not i dont know then

7 0

2 years ago

The vertex of the function y=-3(x - 1)² +2 is?

astra-53 [7]

Formula: f(x) = a(x – h)2 + k

transformation: 1 unit right 2 units up

vertex: (h,k) -> (1,2) it’s positive because it has to be the opposite

maximum/minimum: maximum

range: (-∞, ∞)
domain: y ≥2

7 0

2 years ago

The slope of a line running through points (-3,-5) and (0, -3) is:

Luda [366]

The slope is 2/3 and the y intercept if you need it is -3

4 0

2 years ago

Read 2 more answers

The number c increased by two is equal to fourteen

julia-pushkina [17]

Answer:

c = 12

Step-by-step explanation:

c = 14 - 2

6 0

2 years ago