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Yuki888 [10]
3 years ago
8

Write an inequality for the following statement : "you have to be at least 18 years old to vote. "

Mathematics
2 answers:
DerKrebs [107]3 years ago
8 0
The answer would be x is greater than or equal to 18
Svetllana [295]3 years ago
7 0
Thats not the case in other countries, just the us
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The mean preparation fee H&R Block charged retail customers in 2012 was $183 (The Wall Street Journal, March 7, 2012). Use t
astraxan [27]

Answer:

a)0.6192

b)0.7422

c)0.8904

d)at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

Step-by-step explanation:

Let z(p) be the z-statistic of the probability that the mean price for a sample is within the margin of error. Then

z(p)=\frac{ME*\sqrt{N}}{s } where

  • Me is the margin of error from the mean
  • s is the standard deviation of the population
  • N is the sample size

a.

z(p)=\frac{8*\sqrt{30}}{50 } ≈ 0.8764

by looking z-table corresponding p value is 1-0.3808=0.6192

b.

z(p)=\frac{8*\sqrt{50}}{50 } ≈ 1.1314

by looking z-table corresponding p value is 1-0.2578=0.7422

c.

z(p)=\frac{8*\sqrt{100}}{50 } ≈ 1.6

by looking z-table corresponding p value is 1-0.1096=0.8904

d.

Minimum required sample size for 0.95 probability is

N≥(\frac{z*s}{ME} )^2 where

  • N is the sample size
  • z is the corresponding z-score in 95% probability (1.96)
  • s is the standard deviation (50)
  • ME is the margin of error (8)

then N≥(\frac{1.96*50}{8} )^2 ≈150.6

Thus at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

7 0
3 years ago
Points A, R and G are points of tangency. Find the perimeter of ∆NET below.
Paha777 [63]

Answer:

\small\mathfrak\red{here \: is \: your \: solution..} \\  \\ we \: know \: that \: tangent \\ from \: a \: same  point \: are \: equal \\  \\ tr = 9 | an = 7 |  eg = 5 \\  \\ tr = ta | an = gn | eg = re \\  \\ ta = 9 |  gn =7 | re = 5 \\  \\ hence \: perimeter \:  = 2(9 + 7 + 5) \\  \\ perimeter = 42 \:  \\  \\ \huge\mathfrak\purple{hope \: it \: helps...}

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3 years ago
If Stacy brought 150 apples and gave 6 to each of her 4 friends, how much will she have left?
o-na [289]
The answer is 126 because you multiply 6 times 4 which equals 24 and subtract that from 150 so 150-24 = 126
5 0
3 years ago
Can someone please help me!
ANEK [815]

Answer:

<h2><u>Answer</u><u> </u><u>:</u><u>-</u><u> </u></h2>

Option D :- (180 - 2x)°

<h3><u>Hope</u><u> it</u><u> </u><u>helped</u><u> </u><u>:</u><u>)</u></h3>
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2 years ago
PLS HELP ME ASAP FOR 15 (SHOW WORK AND EXPLAIN!!!!!!) + LOTS OF POINTS!
Nataly_w [17]
Yes because 1.92/16 and 2.88/24 are both .12 which means 1 fluid ounce is 12 cents. 32 and 56 are the next sizes up because 3.84/.12 is 32 and 6.72/.12 is 56
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