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alukav5142 [94]
3 years ago
15

How do I simplify this equation?

Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

\large\boxed{\sqrt[3]{3^{15}}=243}

Step-by-step explanation:

\sqrt[3]{3^{15}}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt[3]{3^{5\cdot3}}=\sqrt[3]{(3^5)^3}\\\\\text{use}\ \sqrt[n]{a^n}=a\\\\=3^5=243

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Isabel walks 1.5km every day. How far does she walk in 5 days? Write your answer in meters
aleksandrvk [35]
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Find 5 days :
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1 day = 1.5km
5 days = 1.5 x 5 = 7.5 km

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Convert km to m
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1 km = 1000 m
7.5km = 7.5 x 1000
7.5 km = 7500 m

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Answer: She walked 7500 m
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4 0
3 years ago
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In a random sample of 200 college students, 110 were females,125 were under the age of 21 years of age, and 45 males were 21 yea
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Answer:  Option 'a' is correct.                      

Step-by-step explanation:

Since we have given that

Total number of students = 200

Number of females = 110

Number of students under the age of 21 years of age = 125

Number of males under the age of 21 years or older = 45

So,  it becomes

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21 years                     45                80              125

21 years or older       45                30              75

Total                          90              110               200

So, Probability that a female student age 21 or older is selected is given by

\dfrac{30}{200}=0.15=15\%

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