3 years ago

Evaluate. Please help me!!!

Mathematics

1 answer:

Mademuasel [1]3 years ago

5 0

Answer:

670

Step-by-step explanation:

(3*1+2)+(3*2+2)+........(3*20+2)=670

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According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative qualit

Romashka-Z-Leto [24]

Answer:

$\= x = 82$

$s = 9.64$

Step-by-step explanation:

From the question we are told that

The data is 87 91 86 82 72 91 60 77 80 79 83 96

Generally the point estimate for the mean is mathematically represented as

$\= x = \frac{\sum x_i }{n}$

=> $\= x = \frac{87 +91 + 86 + \cdots + 96}{12}$

=> $\= x = 82$

Generally the point estimate for the standard deviation is mathematically represented as

$s = \sqrt{\frac{ \sum ( x_i - \= x )^2 }{ n -1 } }$

=> $s = \sqrt{\frac{ ( 87 - 82 )^2 +( 91 - 82 )^2 + \cdots + ( 96 - 82 )^2 }{ 12 -1 } }$

=> $s = 9.64$

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3 years ago

I NEED IT BY TOMORROW! DO NUMBER 10

Oksanka [162]

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A farmer decides to sell 16 pounds of his 48 pound crop. What percent of his crop did he sell?

lesya692 [45]

Answer:

33%

Step-by-step explanation:

he sold 1/3

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Veronika [31]

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3 years ago

JL = 28,<br> KL= 5x + 6, and<br> JK = 3x + 6,

Alexeev081 [22]

Answer:

KL = 16

Step-by-step explanation:

For this problem, JL is the sum of KL and JK. So we can say this:

JK + KL = JL

( 3x + 6 ) + ( 5x + 6 ) = 28

8x + 12 = 28

8x = 16

x = 2

So, now we can find KL:

5x + 6 = ?

5(2) + 6 = ?

10 + 6 = ?

16 = ?

So the length of KL is 16.

Cheers.

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3 years ago