CPM Homework Help : CCA2 Problem 6-140

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Home > CCA2 > Chapter 6 > Lesson 6.2.4 > Problem 6-140

6-140.

Using your calculator, solve the equations below. Round answers to the nearest $0.001$ .

Hint:

Undo powers with fractional exponents. If $x$ is not in the exponent, you should not use logs.

Calculator OK

$x^6=125$

$x^{3.8}=240$

$x^{−4}=100$

$(x+2)^3=65$
Answer (d):
$x=2.021$

$4(x−2)^{12.5}=2486$
Hint (e):
Divide by $4$ first.
Answer (e):
$x=3.673$

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