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SOVA2 [1]
3 years ago
15

Name the multiplicative inverse of 7i.

Mathematics
2 answers:
Nataly [62]3 years ago
6 0

Answer:

7i

Step-by-step explanation:

Mazyrski [523]3 years ago
3 0

Answer:

The multiplicative inverse of 7 is 1/7.

Step-by-step explanation:

A number's multiplicative inverse is its reciprocal.

hope i helped

-lvr

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A market research firm knows from historical data that telephone surveys have a 36% response rate. In a random sample of 280 tel
Rasek [7]

Answer:

0.6604

Step-by-step explanation:

Given that a market  research firm knows from historical data that telephone surveys have a 36% response rate.

Sample size of random sample = 280

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= \sqrt{\frac{pq}{n} }

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Using normal distribution values we can find\

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3 0
3 years ago
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A phone company charges $0.06 per minute for local calls and $0.15 per minute for international calls. When your bill comes, it
solmaris [256]
Let's assume two variables x and y which represent the local and international calls respectively. 

x + y = 852 = total number of minutes which were consumed by the company (equation 1)
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 from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84

51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1) 
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x = 852-208 = 644 minutes = local minutes
6 0
3 years ago
Markuo spends $27 on some plants. Each plant costs $9. How many plants does he buy?
kicyunya [14]

Answer:

He can buy 3 plants

Step-by-step explanation:

$27 is the total amount of money he can spend, if each plant costs $9 the equation would be like this:

9x = 27

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Zarrin [17]

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Step-by-step explanation:

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Mr. Enders conducted a survey and found that 2/5 of his students play a team sport and 1/4 of those students play basketball. Wh
Papessa [141]

Answer:

1/10

Step-by-step explanation:

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3 years ago
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