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nika2105 [10]
4 years ago
14

A sunflower in Julia Rosario's garden was 12 centimeters tall when it was first planted. Since then, it has grown approximately

0.6 meters per day. Write an equation in slope-intercept form that models this situation. How tall will her sunflower be after two weeks?
Mathematics
1 answer:
Svetach [21]4 years ago
7 0
Y=0.6x+12
y=0.6(2)+12
y=13.2
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A random sample of 18 fields of barley has a mean yield of 36.4 bushels per acre and standard deviation of 7.37 bushels per acre
dexar [7]

Answer:

So, the confidence interval is [34.08, 38.72].

Step-by-step explanation:

We know that a  random sample of 18 fields of barley has a mean yield of 36.4 bushels per acre and standard deviation of 7.37 bushels per acre.  

We have :

n=18\\\\\mu=36.4\\\\\sigma=7.37\\\\c=80\%

We use the Appendix: Critical Values Tables, and we get that:

t_{\frac{\alpha}{2}}=1.333

We calculate the margin of error:

E=t_{\frac{\alpha}{2}}\cdot \frac{\sigma}{\sqrt{n}}=1.333\cdot \frac{7.37}{\sqrt{18}}=2.32

We get the boundaries of the confidence interval:

\mu-E=36.4-2.32=34.08\\\\\mu+E=36.4+2.32=38.72\\

So, the confidence interval is [34.08, 38.72].

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4 years ago
Share £405 in the ratio 4:11
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6 0
3 years ago
While walking by a classroom, Linda sees two perfect squares written on a blackboard. She notices that their difference is her f
nydimaria [60]

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The probability of getting a number divisible by 3 is 3/10 using a game spinner.
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B

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8 0
4 years ago
Sarah had three times as many quarters as nickels. She had $3.20 in all. How many quarters did she have?
marin [14]

She have 12 quarters

<h3>what is unitary method?</h3>

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

There are two situation in Unitary method:

There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

If she had 12 quarters, then

12 * .25 = $3 ( quarters)

4 * .05 = $.2 ( in nickels)

Hence, she have 12 quarters.

Learn more about unitary method here:

brainly.com/question/22056199

#SPJ2

5 0
2 years ago
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