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Juliette [100K]
3 years ago
9

Twice the sum of 13 and x is not greater than 15

Mathematics
1 answer:
Law Incorporation [45]3 years ago
5 0
2 ( x + 13) < 15

2x + 26 < 15

2x < -11

x < -5.5
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A political pollster wants to know what proportion of voters are planning to vote for the incumbent candidate in an upcoming ele
balandron [24]

Answer:

1.\ \ np\geq 10\\\\2.\ \ n\geq 10x

Step-by-step explanation:

-Let x be the sample size and n the population size

-The conditions for a one-sample proportion z-test are:

-The sample is randomly selected from the population.

-The sample size is greater than or equal to ten times the population size:

n\geq 10x\\\\n=2000\\x=150\\10x=1500\\\therefore n\geq 10x

-The expectation np is greater than or equal to 10:

np\geq 10\\n=2000, p=0.6\\np=1200\\\\Hence, np\geq 10

5 0
4 years ago
G(n)=-4n+2; find g(8)<br>​
yarga [219]

Answer:

-30

Step-by-step explanation:

In g(8) the 8 = n.  So, substitute 8 in for n in the expression -4n + 2

g(8)  =  -4(8) + 2 = -32 + 2 = -30

4 0
3 years ago
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MARKING BRAINLIEST PL HURRY!!!!
Grace [21]
I think it's B my dude

925-400=525
525/8=65.625
65.625*100= $6,562.50
5 0
3 years ago
Janelle wants to learn to play the piano. Her friends recommended two different music schools. Make Music charges $525 for 10 ho
makvit [3.9K]

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Piano Play has the better deal

Step-by-step explanation:

Piano Play has the better deal because it has a lower unit rate

Make Music’s unit rate is 52.5 when you divide $525 by 10 hours

Piano Play’s unit rate is $45 when you divide $540 by 12 hours

3 0
3 years ago
Read 2 more answers
2x&lt;2 as an inequality
SpyIntel [72]
2x<2
_   __
2   2
x<1
hope this helps
8 0
4 years ago
Read 2 more answers
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