4 years ago

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Mathematics

1 answer:

Sergeeva-Olga [200]4 years ago

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Hope this helps

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A farmer has 280 acres of land on which he plans to plant two different crops, crop A and crop B. For each acre of crop A he pla

Umnica [9.8K]

Answer:

a+b<280

25a+30b less than or equal too 10000

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

3. The following are the scores you shot in five rounds of golf: 70,80,75,75,80. The variance is: A. 3.74 C. 14 B. 196 D. 70

Paladinen [302]

Answer:

Option C.

Step-by-step explanation:

For a given set of N elements:

{x₁, x₂, ..., xₙ}

The mean is given by:

$M = \frac{x_1 + x_2 + ... + x_n}{N}$

And the variance is given by:

$v = \frac{(x_1 - M)^2 + (x_2 - M)^2 + ... + (x_n - M)^2}{N}$

Then for our set:

{70, 80 ,75, 75, 80}

We have 5 elements, then N = 5

The first thing we need to find is the mean.

$M = \frac{70 + 80 + 75 + 75 + 80}{5} = 76$

Then the variance will be:

$v = \frac{(70 - 76)^2 + (80 - 76)^2 + (75 - 76)^2 + (75 - 76)^2 + (80 - 76)^2}{5} = 14$

The correct option is C, 14.

6 0

3 years ago

I need help with this problem please if you can help I would really appreciate it and the problem is number 10

aev [14]

Answer:

g(-5) = -127

Step-by-step explanation:

Plug in -5 for x:

g(-5) = (-5)^3 - 2

= -125 - 2

= -127

4 0

3 years ago

What happens when y = -f(-x)?

IgorLugansk [536]

Answer:

It's a reflection over the x axis.

Step-by-step explanation:

Idk I googled it.

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3 years ago

Given JKN = LMN and LKN and JMN. Prove: JKLM is a parallelogram.

inessss [21]

Answer:

JNM = KNL and JKL = LMJ

Step-by-step explanation:

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3 years ago