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Julli [10]
4 years ago
10

Help please !!!!!!!!!!!!!!!

Mathematics
2 answers:
vfiekz [6]4 years ago
7 0
8/9-2/5
40/45-18/45
(40-18)/45
22/45 hours or 0.48 hours
nexus9112 [7]4 years ago
5 0
You would do 8/9 - 3/5

convert everything to whatever/45
so 40/45 - 27/45

the answer is 13/45 of an hour.
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Determine the point estimate of the population proportion, the margin of error
ahrayia [7]

Answer:

\hat p=0.645\\\\ME=0.233\\\\x=645 \ individuals

Step-by-step explanation:

-Given the boundaries as 0.412 and 0.878

-\hat p is the point estimate for the population proportion and is calculated as follows:

\hat p=\frac{Upper \ Bound+Lower \ Bound}{2}\\\\=\frac{0.878+0.412}{2}\\\\=0.645\\\\

#The margin of error, ME can be calculated for the confidence intervals using the formula:

ME=\frac{Upper \ Bound-Lower \ Bound}{2}\\\\=\frac{0.878-0.412}{2}\\\\=0.233

#The number of individuals in the sample is the product of the point estimate and population size:

\hat p=\frac{x}{n}\\\\x=\hat pn\\\\=0.645\times 1000\\\\=645

Hence, there are 645 individuals in the sample.

8 0
3 years ago
20 POINTS! HELP!!
astraxan [27]
The answer is C. 30.5% :)
5 0
3 years ago
Please help me( '人' )​
love history [14]

Answer:

S(1,2)

Step-by-step explanation:

The value that is being altered is the y value if you go from Q to T and then T to S. The x value = 1 and remains the same for point S.

To go from Q to T, you go from 8 to 5 on the y value. Remember x remains the same. That's three units (8 - 5 = 3)

To go from T to S must be 3 units as well, since the small diagonal is bisected. 5 - 3 = 2 is the answer.

So point S is noted as S(1,2)

4 0
2 years ago
Solve for x<br>2x²-3x-209=0​
kifflom [539]

Answer:

x= 11

Step-by-step explanation:

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3 years ago
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Elodia [21]

A linear function is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. For example, a common equation,  

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x

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5 0
3 years ago
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