A container of hot liquid is placed in a freezer that is kept at a constant temperature of
F. The initial temperature of the liquid is
F. After 4 minutes, the liquid's temperature is
src="https://sciemce.com/media/2/ppg__cognero__Section_6.2__media__36c8e4f0-76d9-434e-b48c-a47b9015f2f5.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_366c95b2d33c4cec81be7acfd" />F. How much longer will it take for its temperature to decrease to F? Round your answer to two decimal places.
?
A. 2.30 minutes
B. 3.44 minutes
C. 3.83 minutes
D. 1.53 minutes
E. 4.21 minutes
Answer: C
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Change the number to polar form and then perform the indicated operations. Express the result in rectangular form.
A. -
j
B. +
j
C. -
j
D. -
j
Find the simple interest. (The rate is an annual rate unless otherwise noted. Assume 360 days in a year.)p = $500, r = 8%, t = 2 years
A. $31.25 B. $2000.00 C. $80.00 D. $8.00
Evaluate.Evaluate -a + b + (-9) for a = -15 and b = 11.
A. 35 B. 17 C. -13 D. 13
Find the standard form of the equation of the ellipse satisfying the given conditions.Foci: (0, -2), (0, 2); y-intercepts: -5 and 5
A. +
= 1
B. +
= 1
C. +
= 1
D. +
= 1