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ryzh [129]
3 years ago
9

Answer this please!!!

Mathematics
1 answer:
vivado [14]3 years ago
5 0

Answer:

$40

Step-by-step explanation:

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Let f(x) = -6x + 3 and g(x) = 5x + 4. Find and state its domain. -30x2 - 9x + 12; all real numbers except x = 4 -18x2 - 39x + 20
Vera_Pavlovna [14]
Unsure of whether this is a composite function or not.  It does look like you've multiplied f(x) and g(x) together.

Looking at <span>-30x2 - 9x + 12, we see immediately that this is a polynomial function.  Because of that, the domain is the set of all real numbers.  The graph of this poly opens down, so the max value is at the vertex, x = -b / (2a).

Here a= -6 and b= -9, so this x-value is -(-9) / (2*(-6)), or  x = 9/12, or x = 3/4.

By subst. 3/4 for x in the poly., we find that the max y value is 4.83.  Thus,the rante is (-infinity, 4.83].</span>
5 0
3 years ago
Blueberries cost $4.00 per pound. How many pounds of blueberries can you buy for $1.00?
Oxana [17]

Answer:

1/4 of a pound

Step-by-step explanation:

Blueberries are 4 dollars a pound you have 1 dollar

you can by 1/4 of a pound

5 0
3 years ago
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What is the slope of the graphed line?
bija089 [108]

Answer:

3/9

Step-by-step explanation:

3/9 because it goes up 3 right 9

8 0
3 years ago
REALLY NEED HELP ON THESE 3 MATH QUESTIONS!!! (20 PTS)
hammer [34]
1. x² - 6x + 8
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    -4-2= -6
   =(x-4)(x-2)

3. the answer is A
    if you plug in the points into the equation y=x
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4 years ago
Write an expression for the sum of 12 + 10n
Nookie1986 [14]

Answer:

22n

Step-by-step explanation:

7 0
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