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fenix001 [56]
2 years ago
9

Answer #5 for me . I'll give brainliest !​

Mathematics
1 answer:
stealth61 [152]2 years ago
8 0

Answer:

Step-by-step explanation:

4 1/2  

Do 2x4 = 8

Plus the 1 which is now 9/2

simplify and you get 4.5

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Since the purpose of an ice cube is to keep a drink cold, is it better
olchik [2.2K]
Higher volume because the more ice the colder the drink
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3 years ago
Read 2 more answers
In Nebraska, the mean rain-fed corn yield of harvested fields are normally
NikAS [45]

Answer: 169.2 per acre are produced if a field is in the top 25%.

Step-by-step explanation:

Given:  The mean rain-fed corn yield of harvested fields are normally  distributed, produce 147.2 bushels per acre with a standard deviation of 33 bushels per acre.

Let X denote the mean rain-fed corn yield of harvested fields.

Let x denotes the number of bushels per acre are produced if a field is in the top 25%.

Top 25% on a density curve means , (100-25%)i.e. 75% area lies below x.

I.e.

P(X.

Z-score for p-value of 0.75 (one tailed)=0.67 [By z-table]

Then, \dfrac{x-147.2}{33}=0.6744

\Rightarrow\ {x-147.2}=33\times0.67\\\\\Rightarrow\ {x-147.2}=22.11\\\\\Rightarrow\ {x}=22.11+147.2=169.31

Here approx value is 169.2 (from options).

So, 169.2 per acre are produced if a field is in the top 25%.

6 0
3 years ago
What is 7,000,000,000 in scientific notation?
AVprozaik [17]
7.0 x 10^9 Is the answer
4 0
3 years ago
Which function is graphed below?
aev [14]

Answer:

f(x) = sin(x)

Step-by-step explanation:

The graph above is the exact parent graph of f(x) = sin(x).

f(x) = cos(x) would have an y-intercept of 1, and would not be correct.

The negative functions would be incorrect as it would be flipped.

4 0
3 years ago
(4x-5) (4x+5) <br><br> Expand and simplify
goldfiish [28.3K]

Step-by-step explanation:

(4x-5)(4x+5)

multiply each

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16x^2+20x-20x-25

16x^2-25

3 0
3 years ago
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