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Assume that when adults with smart phones are randomly selected 44% of them use them in meetings or classes if 12 adult smartphone users are randomly selected find the probability that fewer than 4 of them use their smart phones in meetings or classes
A 6 ft 160 pound man was exposed to mercury. A vial of blood was taken for testing. The result was 0.005milligrams of mercury was found in the test sample. How much mercury was found in the while body.
A proton is located at the point (x = 1.0 nanometres, y = 0.0 nanometres) and an electron is
located at the point (x = 0.0 nanometres, y = 4.0 nanometres). Find the magnitude of the
electrostatic force that each one exerts on the other. (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2, e = 1.6
× 10-19 C)
what is electric field?
Find the derivative of the function
P(x)=ln [ (4x + 1)^3 / (2x − 5)^4 ]
is
a. −4(2x−17) / (4x+1)(2x−5)
b.−4(2x−17) / (4x+1)
c. 4(−2x−17) / (4x+1)(2x−5)
d. (−2x−17) / (4x+1)(2x−5)
Find the second derivative of the following function:
F(x)=3x^3 − 1 / x + e^2x.
is
a.18x − ln x + 4e^2x
b.18x − 2 / x^3 + 2e^2x
c.18x + 2 / x^3 + 4e^2x
d.18x − 2 / x^3+ 4e^2x
Find the derivative of the function:
x^5 e^3x + x + 1 / x
a. x^5 e^3x + 5x^4 e^3x + 1 / x^2
b.3x^5 e^3x + 5x^4 e^3x − 1 / x^2
c. x^5 e^3x + 5x^4 e^3x − 1 / x^2
d. 3x^5 e^3x + 5x^4 e^3x − 2 / x
Differentiate the function:
.F(x)= x − 4x^2 / x^3.
is
a. F′(x)= 2 / x^3 − 4 / x^2
b.F′(x)= 3x^2 − 24x
c.F′(x)= − 2 / x^3 + 4 / x^2
d.F′(x)= 1 − 8x / 3x^2
A body of mass 25 kg moving at 3 m per second on a rough horizontal floor is brought to rest after sliding through a distance of 2.5 m on the floor. Calculate the coefficient of sliding friction (g=10.0ms-2)
The derivative of F(x) =12xe^6x
is
a.12e^6x (1 + x)
b.12e^6x (1+ 6x^2)
c.36e^6x (1+x)
d.12e^6x (1+6x)
#339914 on Dec 2023