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Nonamiya [84]
2 years ago
8

Simplify.

20%7D" id="TexFormula1" title="\frac{8\sqrt{6mn} + 6\sqrt{8mn} }{2\sqrt{2mn} }" alt="\frac{8\sqrt{6mn} + 6\sqrt{8mn} }{2\sqrt{2mn} }" align="absmiddle" class="latex-formula">

Mathematics
1 answer:
nata0808 [166]2 years ago
3 0
It’s the first answer
I used Math-way :)

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Simplify and then evaluate the equation<br> when a= 2 and b = 4.<br> b2 + 3(b – 62) – 2a= [?]
I am Lyosha [343]

Answer:

-170

Step-by-step explanation:

First, you would substitute 2 and 4 for a and b. 4 times 2 + 3(4 - 62) - 2 times 2 = ?

Then, do 4 times 2 (8), 3(4-62)=3(-58)

8 + -174 - 4 = -170

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2 years ago
The null hypothesis in the Durbin-Watson test is always that there is a. negative autocorrelation. b. no autocorrelation. c. eit
Kamila [148]

Answer:

b. no autocorrelation.

Step-by-step explanation:

The Durbin-Watson test assumes that

H0:ρ=0

HA:ρ≠0

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The Durbin-Watson test is used in regression analysis to test for autocorrelation. The results from the test would always range from 0 to 4. A value of less than 2.0 indicates positive autocorrelation. A value of 2.0 indicates no autocorrelation, and a value of 2.0 to 4.0 indicates negative autocorrelation.

3 0
3 years ago
Country Motorbikes Incorporated finds that it costs $400 to produce each motorbike, and that fixed costs are $1600 per day. The
faltersainse [42]

Answer:

30units,2900

Step-by-step explanation:

Given that Country Motorbikes Incorporated finds that it costs $400 to produce each motorbike, and that fixed costs are $1600 per day.

The price function is p(x) = 700 − 5x, where p is the price (in dollars) at which exactly x motorbikes will be sold.

If x units are produced and sold we have

Costs for x units = variable costs *x +Fixed costs = 400x+1600

Sales revenue = no of units sold * price = x(700-5x) = 700x-5x^2

Profit funciton = P(x) = Sales revenue - Total cost

= 700x-5x^2-400x-1600\\=300x-5x^2-1600

To get maximum profit we use derivative test I derivative =0 and II derivative =negative

P'(x) = 300-10x\\p"(x) = -10

Producing 30 units will maximize the profit.

Max profit

=P(30) = 2900

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3 years ago
Truth or Dare?<br> Have a nice day/night &lt;3
denpristay [2]

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Truth plz

Step-by-step explanation:

3 0
2 years ago
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A person can pay $33 for a membership to the history museum and then go to the museum
Lemur [1.5K]

Answer:

42$

Step-by-step explanation:

The person pays 33$ for a membership,and then visits the museum 9 times.So 33+(9*1)=42

4 0
3 years ago
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