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Komok [63]
4 years ago
7

Add and simplify the following 3/8 + 9/28

Mathematics
1 answer:
SIZIF [17.4K]4 years ago
3 0
Convert to a common denominator. Let's use 56. 3/8 = 21/56 and 9/28 = 18/56.

21/56 + 18/56 = 39/56

answer is 39/56
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Answer:

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Step-by-step explanation:

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3 years ago
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3 0
4 years ago
A salesman at a clothing store makes a sale to 30% of the customers he talks to, and wants to try out a new tecnique to see if h
Alexus [3.1K]

Answer:

Yes, we can conclude that average sales has changed.

Step-by-step explanation:

The null hypothesis, H0 : μ = 0.3

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3 years ago
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8 0
3 years ago
Simplify the following expression: (6.8 × 10^3) ×(4.54 × 10^6)
swat32
(6.8\cdot10^3)\cdot(4.54\cdot10^6)=(6.8\cdot4.54)\cdot(10^3\cdot10^6)=30.872\cdot10^{3+6}\\\\=30.872\cdot10^9=3.0872\cdot10^{10}

8 0
3 years ago
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