47.12
I did this last year :))
You use the substitution method simultaneously. He worked 9h at job A
Answer:
X=10
Step-by-step explanation:
explanation is in the image above
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Answer:
Before we can simplify radicals, we need to know some rules about them. These rules just follow on from what we learned in the first 2 sections in this chapter, Integral Exponents and Fractional Exponents.
Expressing in simplest radical form just means simplifying a radical so that there are no more square roots, cube roots, 4th roots, etc left to find. It also means removing any radicals in the denominator of a fraction
Step-by-step explanation:
Answer:
S = a² => 20 = a² => a = √20 ≈ 4.5 cm
Step-by-step explanation: