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Ierofanga [76]
3 years ago
11

Evaluate the expression if a = -1 and b = 1/2. 3+a/2 - 6b

Mathematics
1 answer:
Anna [14]3 years ago
8 0
3+a/2-6b in a couple weeks ago I have a couple things to say I don’t have a problem I just saw you I don’t know how to say hi I don’t have any money for that I just don’t know how to get a hold of me because I’m going out of the house to do a job I have a couple things to go and then I’m gonna be there for you and then you have a couple things that you want me to go out with your dad if not I’m done I just don’t do that you know that I’m going out of my money to do it I just want you know what
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What is the scientific notation of 112,050?
kirill [66]
The Answer Will Be 1.1205 x 10 To The 5th Power.
3 0
4 years ago
Angelo charges $30 to mow 1 yard. Which equation could be used to determine the total cost, y, for mowing x yards? A. y = x + 30
alexira [117]

Answer:

D. y=30x

Step-by-step explanation:

So x represents like say if he mowed 3 yards.

y=30(3)

Then y would equal 90

8 0
3 years ago
Read 2 more answers
If you apply the changes below to the absolute value parent function, f(x) = |x|, what is the equation of the new function?Shift
Serjik [45]

Answer: C

<u>Step-by-step explanation:</u>

The general form of the equation is: g(x) = a|x - h| + k  ;

  • "a" represents the vertical stretch <em>(or shrink)</em>
  • "h" represents the x-coordinate of the vertex (left and right)
  • "k" represents the y-coordinate of the vertex (up and down)

4 units left means h = 4

2 units up means k = 2

--> g(x) = |x - 4| + 2

8 0
3 years ago
Read 2 more answers
Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 120 in. Find
mafiozo [28]

Answer:

x = 20 in

L = 40 in

Step-by-step explanation:

Solution:-

- Denote the following:

 The side of square cross section = x

 The length of package = L

- Given that the combined length "L" of the package and girth "P" of the package must be less than and equal to 120 in

- The girth of the package denotes the Perimeter of cross section i.e square:

                       P = 4x

- The constraint for our problem in terms of combined length:

                      L + 4x ≤ 120  

                      L = 120 - 4x .... Eq1

- The volume - "V" -of the rectangular package with a square cross section is given as:

                      V = L*x^2   ... Eq2

- Substitute Eq1 into Eq2 and form a single variable function of volume "V":

                      V(x) = 120*x^2 - 4x^3

- We are asked to maximize the Volume - " V(x) " - i.e we are to evaluate the critical value of "x" by setting the first derivative of the Volume function to zero:

                     d [ V(x) ] / dx = 240x - 12x^2

                      240x - 12x^2 = 0

                      x*(240 - 12x) = 0

                      x = 0,  x = 20 in

- We will plug in each critical value of "x" back in function " V(x) ":

                      V (0) = 0

                      V(20) = 120(20)^2 - 4(20)^3

                                = 16,000 in^3

- The maximizing dimension of cross section is x = 20 in, the length of the parcel can be determined by the given constraint Eq1:

                       L = 120 - 4*20

                       L = 40 in

- The maximum volume of the rectangular package is with Length L = 40 in and cross section of Ax = ( 20 x 20 ):

5 0
3 years ago
The angle measurements in the diagram are represented by the following expressions. 6x - 48 and 4x + 38
LenKa [72]

Answer:

is there a graph to go with it ?

Step-by-step explanation:

6 0
4 years ago
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