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lapo4ka [179]
2 years ago
13

Someone tell me the definition of a Coefficient?

Mathematics
1 answer:
Elza [17]2 years ago
3 0
A numerical or constant quantity placed before and multiplying the variable in an algebraic  expression. 

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If y= 1/3x and x= -18, find y
jarptica [38.1K]
   
\displaystyle \bf \\
x = -18 \\\\
y =  \frac{1}{3}\cdot x =  \frac{1}{3}\cdot -18 =  \frac{-18}{3} = \boxed{\bf -6}



3 0
3 years ago
Penelope has been practicing driving a golf ball. The lengths of her first 3 drives are shown below: • Drive 1: 180 yards • Driv
disa [49]

Answer:

The answer is "183  yards"

Step-by-step explanation:

Drive \ 1= 180 \ yards \\\\Drive \ 2= 170 \ yards\\\\ Drive\ 3= 195 \ yards \\\\Drive \ 4= x \ \ yards \\\\

Using formula:

\to \text{average of number}=\frac{sum \ of \ number}{total\ number}\\\\\to 182 =\frac{180+170+195+x}{4}\\\\\to 4 \times 182 =545+x\\\\\to x= 728-545\\\\\to x=183

3 0
3 years ago
The volume of a box is 80 cubic feet with length x-3 and width x-1 and height x+5. What are the possible values of x? What are t
Kryger [21]

Answer:

  • the only possible value of x is 5
  • the dimensions are 2 × 4 × 10

Step-by-step explanation:

The cubic equation ...

  (x -3)(x -1)(x +5) = 80

has one real root: x = 5. Using that value for x, the dimensions become ...

  length = 5 - 3 = 2

  width = 5 - 1 = 4

  height = 5 + 5 = 10

The dimensions are (length, width, height) = (2, 4, 10).

_____

We cannot tell the thrust of the problem, since it has only one solution. Perhaps you're supposed to write the cubic in standard form and use the <em>Rational Root theorem</em> to find <em>possible values of x</em>. That form can be found to be ...

  (x -3)(x -1)(x +5) -80 = 0

  x³ +x² -17x -65 = 0

Descartes' rule of signs tells you there is one positive real root. The rational root theorem tells you possible rational roots are factors of 65:

  1, 5, 13, 65

We know that x must be greater than 3 (so all dimensions are positive). Thus <em>possible values of x are 5, 13, 65</em>, and we're pretty sure that 65 is way too large.

4 0
3 years ago
Help help help<br> ....................
vazorg [7]

Answer:

77

Step-by-step explanation:

There are 415 third graders and 338 second grades the question is asking how many more third graders are there than second graders, so its asking for the difference between them:

415 - 338 = 77

There are 77 more third graders than second graders

5 0
2 years ago
What operation do i use to <br> solve 3.18 -16.70
stiks02 [169]

Answer:

subtraction

Step-by-step explanation:

6 0
2 years ago
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