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olga nikolaevna [1]
2 years ago
6

Which word phrase represents this expression? 2n + 3

Mathematics
2 answers:
djverab [1.8K]2 years ago
8 0

three more than twice a number.

amid [387]2 years ago
3 0

Answer:

A number (variable) times 2 plus the constant 3.

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Answer: what type of math is this

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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

We know for samples randomly drawn of large size sample proportion follows a normal distribution with mean= sample proportin and std error

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Substitute p = 0.36 and q = 1-0.36= 0.64

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Using normal distribution values we can find\

P(33.5p.c. < p < 39pc)\\= P(0.335

3 0
2 years ago
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HELP PLS HERE IS IT NEED IT
Zielflug [23.3K]

Step-by-step explanation:

Total students = 35

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3 0
3 years ago
Mai had 5 candy bars she ate half of one candy bar and dicided to distribute the remaining bars between her two sisters and her
gogolik [260]

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

So there are five candy bars.

Herself and two sisters equals 3 people in total.

This is a graph of 5 candy bars, each line being 1/2.

━ ━

━ ━

━ ━

━ ━

━ ━

If she ate half of one... the graph would become this.

━ ━

━ ━

━ ━

━ ━

━

Now there are 9 halves. You need to split the 9 halves for 3 people. 9 divided by 3 is 3.

Each person gets 3 halves, or 1 and 1 half.

Mai: ━ ━ ━

Sister 1: ━ ━ ━

Sister 2: ━ ━ ━

Altogether that is 9 halves, AKA the number of halves Mai had after she ate 1/2.

The amount Mai ate in the first place: ━

9 halves plus 1 half, equals 10 halves. Each whole has 2 halves. 10 divided by 2 is 5, AKA the number of candy bars she had in the first place.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

7 0
3 years ago
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