Answer:
C: ![-7ab \sqrt[3]{3ab^{2} }](https://tex.z-dn.net/?f=-7ab%20%5Csqrt%5B3%5D%7B3ab%5E%7B2%7D%20%7D)
Step-by-step explanation:
Simplify or expand:
![2ab\sqrt[3]{192ab^{2} } - 5\sqrt[3]{81a^{4} b^{5} }](https://tex.z-dn.net/?f=2ab%5Csqrt%5B3%5D%7B192ab%5E%7B2%7D%20%7D%20-%205%5Csqrt%5B3%5D%7B81a%5E%7B4%7D%20b%5E%7B5%7D%20%7D)
Transform the expression:
![2ab\sqrt[3]{4^{3}*3ab^{2} }](https://tex.z-dn.net/?f=2ab%5Csqrt%5B3%5D%7B4%5E%7B3%7D%2A3ab%5E%7B2%7D%20%20%7D)
- ![5\sqrt[3]{3^{3}*3a*ab^{3} b^{2} }](https://tex.z-dn.net/?f=5%5Csqrt%5B3%5D%7B3%5E%7B3%7D%2A3a%2Aab%5E%7B3%7D%20b%5E%7B2%7D%20%20%7D)
Re-write
Multiply
Combine like terms.
<h3>
Answer: C) x = 80</h3>
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Work Shown:
Let's cross multiply to get the following
14/20 = 56/x
14*x = 20*56
14x = 1120
x = 1120/14
x = 80
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As a way to check the answer, we can type 14/20 - 56/80 into the calculator and we should get 0. I'm taking advantage of the rule that if A = B, then A-B = 0. This trick is handy to check if two sides of any equation are equal to one another.
Area of circle = πr²
Find radius:
πr² = 1808.64
r² = 1808.64 ÷ π
r² = 575.71
r = √575.71
r = 23.99 units
Find Circumference:
Circumference = 2πr
Circumference = 2π (23.99)
Circumference = 150.76 units
Answer: Circumference = 150.76 units
Answer:
B) X || Z
Step-by-step explanation:
Hope it helps you in your learning process.
