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algol13
3 years ago
13

Please Help! I will give brainliest! <3

Mathematics
1 answer:
astra-53 [7]3 years ago
5 0
The answer is 27.05 kg
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With food prices becoming a great issue in the world; wheat yields are even more important. Some of the highest yielding dry lan
Rzqust [24]

Answer:

Option E) 61.6

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 bushels per acre

Standard Deviation, σ = 30 bushels per acre

We assume that the distribution of yield is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(X>x) = 0.90

We have to find the value of x such that the probability is 0.90

P(X > x)  

P( X > x) = P( z > \displaystyle\frac{x - 100}{30})=0.90  

= 1 -P( z \leq \displaystyle\frac{x - 100}{30})=0.90  

=P( z \leq \displaystyle\frac{x - 100}{30})=0.10  

Calculation the value from standard normal table, we have,  

P(z

\displaystyle\frac{x - 100}{30} = -1.282\\x = 61.55 \approx 61.6  

Hence, the yield of 61.6 bushels per acre or more would save the seed.

7 0
3 years ago
You make $7 for every lawn you mow.
pickupchik [31]
You would have to mow 9 lawns
5 0
3 years ago
Read 2 more answers
What is 1.400 as a common fraction and write as %
11Alexandr11 [23.1K]

Answer:

1.400 as a common fraction is 7/5

as a percentage 140%

Step-by-step explanation:

1.4 written as a fraction is;

\frac{14}{10}

simplifying we have;

\frac{14}{10}=\frac{7}{5}

Converting to percentage we simply multiply by 100.

\frac{7}{5}*100=140

8 0
3 years ago
Factorize the following:<br>5(3a + b)² +6 (3a +b) - 8​
zvonat [6]

Answer:

Step-by-step explanation:

Here, following formula will be used

(a+b)²= a²+b²+2ab

question

5(3a + b)² +6 (3a +b) - 8​

=> we will take out 3 as common number to make the term (3a+b) to fit formula requirement

=> 5x3 (a+b/3)²+6(3a+b)-8

=> 15(a²+b²/9+2xaxb/3)+18a+6b-8

here, we have expanded the formula

=> 15a²+15b²/9+15x2ab/3+18a+6b-8

=> 15a²+5b²/3+10ab+18a+6b-8

5 0
3 years ago
Read 2 more answers
Point c is the center of the circle above. what fraction of the area of the circle is the area of the shaded region?
abruzzese [7]
Can you please take a pictur
6 0
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