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ELEN [110]
3 years ago
12

PLEASE HELP Solve the following systems of inequalities and select the correct graph:

Mathematics
2 answers:
nirvana33 [79]3 years ago
4 0

Answer:

D

Step-by-step explanation: Took the test and got it right. :)

NNADVOKAT [17]3 years ago
3 0

Answer:

que duro a fuego hermano

Step-by-step explanation:

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17- 9=6<br> I really need help with this one
Ymorist [56]

Answer:

It's not right.

Step-by-step explanation:

8 is not equal to 6

5 0
3 years ago
A soccer tournament starts out with 128 teams after each round half of the teams are eliminated after 6 rounds how many are left
victus00 [196]
128/2^x x being the number of rounds.
128/2^6
128/64
2
2 teams are left at the 6th round.
8 0
3 years ago
Read 2 more answers
-2(x+3)&lt;20 <br> Show work and write solution set
Digiron [165]

Answer:

x > - 13

Step-by-step explanation:

Given

- 2(x + 3) < 20 ← distribute parenthesis on left side

- 2x - 6 < 20 ( add 6 to both sides )

- 2x < 26

Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.

x > - 13

solution set is { x | x > - 13 }

3 0
3 years ago
(a) How would you characterize the relationship between money spent on advertising and items sold?
Mashcka [7]

Answer:

a) Positive Correlation

b) 69.5

c) Base advertisement fee    

Step-by-step explanation:

a) Relationship between money spent on advertising and items sold

If we spent greater amount of money on advertisement, thus, we create more awareness and thus, the number of item sold increases.

Similarly, if less money is spent on advertisement, the number of items sold will be less.

Thus, the money spent on advertisement varies directly with the number of items sold.

Thus, they have a positive relationship or a positive correlation.

b) Money spent in advertising to sell 30 items

We are given the function:

y= 1.6x+ 21.5

We put x = 30

y(30)= 1.6(30)+ 21.5\\y(30) = 69.5

Thus, the score predicted by model is 69.5 units.

c) Interpretation of 21.5

Comparing the equation to a general linear equation, we get

y = mx + c

where m is the slope and c is the y-intercept.

y-intercept tells us the value of function when x is zero.

Thus, for the given scenario it will tell about the basic advertisement fee to be paid if we want to sell 0 products.

Comparing we get,

c  = 21.5

Interpretation:

Thus, 21.5 units is the basic amount of advertisement fee that needed to be paid( the number of items sold is 0)

8 0
3 years ago
In functions, what does (x+2)(x-4) equate to? ​
dimaraw [331]

Answer:

f(x) = x^2 -2x -8

Step-by-step explanation:

(x+2)(x-4)

FOIL

first: x*x = x^2

outer: -4x

inner: 2x

last: 2*-4x = -8

Add together

x^2 +2x-4x-8

x^2 -2x -8

This is a parabola

6 0
3 years ago
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