h (t) = -5t² + 40t . What will the velocity be after 3 seconds? O 75 ft/sec O 10 ft/sec 90 ft/sec O 70 ft/sec

Q: d²y dx2 -y = 10sin²x

A:

Q: ædx + ydy = (x² + y) dx

A:

Q: 6 dx. 1+ 9x2 Calculate

A:

Q: 2 X 1 dx -2 4

A: Let's see a formula of integration. ∫a2-x2 dx = x2a2-x2 + a22sin-1xa + C We use this formula to…

Q: 7 dx 7 X. de

A: Given that, y=x7+7x7   We have to find, dydx

Q: Find dx? 7x? +y? = 5 dx

A: Consider the equation

Q: 4-S cosh? Vx dx x csch vx

A:

Q: x dx 12

A: Integration of the function helps to find the value of the given integration. Substitution of the…

Q: S X-X dx

A:

Q: ne position öf å hummingbird flying along a straight line in t seconds is given by S(t) = 8t³ – 27t…

A: ANSWER IS AS BELOW:

Q: I + a dx = 9.

A:

Q: Sxe 2x dx

A: Integration by parts: ∫u·v dx = u·∫v dx - ∫ddxu·∫v dx dx   We have to evaluate ∫x e-2x dx.

Q: r=secxcscsx dr/dx=

A:

Q: Evaluate((5x² + 7)e-x) at x = 0. × Submit Answer

A:

Q: dy y + 3x %3D dx

A:

Q: よy 2 ー子メ=

A:

Q: Sx. dlx find valueof

A: To find the value of k in ∫01xkxdx

Q: cos s 40 d0

A: Let's find.

Q: S tan 2x dx

A: Consider the given integration. I=∫tan2x dx Use trigonometric identity. tan2x=sin2xcos2x So,…

Q: 2 dx 43.

A: Given integral is

Q: DR.

A:

Q: 3X-Y-4 2 . when X=4 i y=l

A:

Q: | sech²xtanh²x dx

A: We can find the integration as below

Q: dx 19. S 2-x

A: Given: ∫dx2-x