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Questions22
• ### A credit union client deposits \$1690 in an account earning 9(percent) annual interest, compounded quarterly.?

What will the balance of the account be at the end of 19 years?

Use the formula A=P (1 + r/m)^mt

• ### A credit union client deposits \$1690 in an account earning 9(percent) annual interest, compounded quarterly?

What will the balance of the account be at the end of 19 years?

• ### Which of the following is a solution of x^4= -81?

a. 3(cos 120 + i sin 120)

b. 3(cos 300 + i sin 300)

c. 3(cos 135 + i sin 135)

d. 3(cos 90 + i sin 90)

• ### Chemistry homework help.?

For the reaction CO (g) + 2 H2 (g) -> CH3OH (g) at 700. K, equilibrium concentrations are [H2] = 0.072 M, [CO] = 0.020 M, and [CH3OH] = 0.030 M. Calculate K (I know most of the problem, i just dont know what the 700 K means)

• ### Trigonometric identity problem.?

given that cot m = 0.75 and cos m < 0, what is the value of sin of m?

• ### Need help with trigonometry identity problem.?

The equation of motion for a weight suspended from a particular spring is given by: p(t) = 2sin t/3 +5cos t/3, where p(t) is the displacement from the equilibrium position in centimeters, and t is the time elapsed in seconds. at what time does the weight first reach the equilibrium position

a. -1.190 seconds

b. 0 seconds

c. 1.951 seconds

d. 5.854 seconds

Thanks

• ### find molality with this equation (-3.6C) ΔTf = (2)i x (1.86 C/m)Kf x (unknown)m?

ΔTf is the temperature change (-3.6 Celsius) i is the van t Hoff factor (2) Kf is the molal freezing point depression constant (1.86 C/m) and m is the molality which im trying to find.

• ### Calculate the volume of a balloon at this altitude?

A typical weather balloon contains approximately 563 L of hydrogen gas when it is released. If the

temperature and pressure at the surface are 288 K and 1.00 atm when the balloon is released, what will its

volume be at 32.0 km above the surface, where temperature and pressure are 229 K and 8.57 x 10-3 atm?