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castortr0y [4]
3 years ago
12

Use the following function rule to find f(6). f(x) = 6 - x f(0) =

Mathematics
1 answer:
Oxana [17]3 years ago
8 0
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A train travels 210.6 miles in 1.3 hours what is the trains average speed?
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Average speed = total distance/ total time
210.6/1.3= 162
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3 years ago
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(z + 3)2<br> Draw me an area that shows the expression
mario62 [17]

Answer: 2z + 6

Step-by-step explanation: Distribute the 2 to z and 3.

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3 years ago
Use the substitution method to solve the system of equations. Choose the
Hatshy [7]

Answer:

(3, 2) is the ordered pair for the given system of equations.

Step-by-step explanation:

Given:

2 x+ y = 8.......................(i)

y = - x + 5........................(ii)

<u>Put y = - x + 5 in equation (i)-</u>

<em>2 x + ( - x+ 5) = 8</em>

<em>2 x - x + 5 = 8</em>

<em>x = 8 - 5</em>

<em>x = 3</em>

<u>Now put x = 3 in equation (ii)-</u>

<em>y = - 3 + 5</em>

<em>y = 2</em>

Hence the (3, 2) is the correct ordered pair.

4 0
3 years ago
in a survey, 15 high school students said they could drive and 15 said they could not. Out of 60 college students surveyed, 30 s
ELEN [110]
Not really, still one in every 2 people will be able to drive in college, the same as in highschool. They are mathematically equally likely! Hope that helps :)
8 0
3 years ago
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Suppose that each day a company has fixed costs of 400 dollars and variable costs of 0.8x+1420 dollars per unit, where x is the
Bess [88]

Answer:

Step-by-step explanation:

Given that a company fixed costs are 400 dollars

and variable cost = 0.8x+1420 per unit and x the no of units produced

Selling price = 1500-0.25x per unit

a) Break even units

At break even units selling price = variable cost

1500-0.25x=0.8x+1420\\1.05x = 80\\x=76.19~76

Break even units = 76

b) Revenue = Sales - total costs

= x(1500-0.25x)-(x)(0.8x+1420)-400\\= 1500x-0.25x^2-0.8x^2-1420x-400\\= -1.05x^2+80x-400

Use derivative test to get max revenue

R'(x) = -2.10x+80

R"(X) <0

So maximum when I derivative =0 or when

x=38.10

x=38

c) price when x =38 is

P = 1500-0.25(38)\\=1490.5

5 0
3 years ago
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