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horsena [70]
3 years ago
5

Ari buying 10 1/2 feet of rope that costs $5.25 per foot.How much will Ari spend?

Mathematics
1 answer:
lapo4ka [179]3 years ago
8 0

Answer:

55.13

Step-by-step explanation:

10×5.25 = 52.50

52.50+2.63= 55.13

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Is there a relation between the age difference between​ husband/wives and the percent of a country that is​ literate? Researcher
Xelga [282]

Answer:

y = \beta_1 x + \beta_o

With \beta_1 representing the slope we have that:

\hat \beta_1 = -0.0437

\hat \beta_o = 7.5

And we are interest on this case the interpretation about the slope and we can conclude that:

For every unit increase in literacy rate (percent of the population that is literate) the age difference (husband minus wife age) ​falls by 0.0437 units, on average.

Step-by-step explanation:

For this case we have that the regression model adjusted between age difference (husband minus wife age) representing the y variable and literacy rate (percent of the population that is literate) representing the variable x is given by:

y= -0.0437 x + 7.5 where 17 \leq x\leq 100

And we know that the method used in order to adjust the regression line was least squares.

For this case our dependent variable is y = age difference (husband minus wife age) and the independent variable is x=literacy rate (percent of the population that is literate)

If we compare the regression model adjusted with the linear regression model:

y = \beta_1 x + \beta_o

With \beta_1 representing the slope we have that:

\hat \beta_1 = -0.0437

\hat \beta_o = 7.5

And we are interest on this case the interpretation about the slope and we can conclude that:

For every unit increase in literacy rate (percent of the population that is literate) the age difference (husband minus wife age) ​falls by 0.0437 units, on average.

3 0
3 years ago
Helpppppppp. Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the
tamaranim1 [39]

Answer:

Jason Inherit a land with a 45% chance of having oil.

Step-by-step explanation:

 The probability of the land having oil is = P ( O) = 45 /100

The probability of the land having oil is= Q(O ) =55/100

The machine has an accuracy of 80%. This suggests that 8 out of 10 times the machine will give a wrong reading.

The probability of the correct reading is=  P(M)=80/100

The probability of the incorrect reading is=Q(M)=20/100

The case when the machine predicts there is no oil and there is indeed oil can be calculated:Probability=Probability of oil present  ×  probability of the incorrect reading

Probability=P(O) x Q(M)

Probability=45/100 x 20/100

Probability=9/100

The probability of the test predicting no oil in land and the land has oil is  0.09 or 9%

7 0
3 years ago
Help please with this math question
Vanyuwa [196]
To solve this question, simply use the formula to find the volume of the cylinder,

V = Pi r^2 • h

V = 3.14 • 4^2 • 4.

Then compare the value for volume to the closest number on the number line. Is it in between 2 numbers, exactly one number on the number line or very close to one number as in the number line.






8 0
3 years ago
Read 2 more answers
The red arrow is pointing to what part of the xy-plane?
Brut [27]
The answer is y axis
6 0
2 years ago
What number is one hundred more than 792?
Andrej [43]
One hundred more than 792 = 792 + 100

792 + 100 = 892

892 is your answer

hope this helps
7 0
3 years ago
Read 2 more answers
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