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sesenic [268]
3 years ago
14

F(x) = –2² – 9x Find f(-2)

Mathematics
1 answer:
Sav [38]3 years ago
3 0

Answer:

22

Step-by-step explanation:

1.) -2²-9(-2)

2.) -2(-2)+18

3.) 4+18

4.) 22

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4x – y = 7 3y – 12x = –21
Elis [28]

Answer:

y= 4x − 7 or 0=0

Step-by-step explanation:

4x−y+−4x=7+−4x

6 0
3 years ago
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3 3/4 divided by 1 1/3 in fraction answer
wlad13 [49]

Answer: 4/3

Step-by-step explanation:

6 0
2 years ago
Is 8 yd less than 288 in
katrin2010 [14]
8 yards is equal to 288 inches.  
1 yard=36 inches
36x8=288
288 converted to yards=8
4 0
4 years ago
Read 2 more answers
If a Rubik’s Cube has a volume of 384 cubic centimeters, how long is one side of the cube?
Tatiana [17]
The answer is:  "7.268 cm" .
________________________
Explanation:
________________________
Since the formula for the volume, "V", of a cube, is:

V = s³ ;

in which:  "s" = side length of a cube;

Given:  "V = 384 cm³ " ;  Plug this value into the formula; to solve for "s" ;

V = s³ ;

↔  s³ = V ; 

     s³ = V ; 

     s³ = 384 cm³ ;

Take the "cubic root" of EACH SIDE of the equation; to isolate "s" on one side of the equation ; & to solve for "s" ; 
_________________________________________________
   ∛(s³) = ∛ (384 cm³) ;

     s =   7.2684823713285586  cm

Round to:  7.268 cm .
__________________________________________________
6 0
3 years ago
Brandon bought 21 chicken wings for $39.90. How much would it cost for 15 wings?
Pachacha [2.7K]

Answer:

$28.50

Step-by-step explanation:

21 chicken wings= $39.90

1 chicken wing= 39.90÷21= $1.90

15 chicken wings= 15×1.90= $28.50

4 0
3 years ago
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