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Lera25 [3.4K]
3 years ago
14

Evaluate the expression for n=-3

Mathematics
1 answer:
satela [25.4K]3 years ago
4 0

Answer:

5n is your answer hope this help

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Is y= -6x proportional?
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Answer:

yes

Step-by-step explanation:

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2 years ago
Determine the missing side length:
ludmilkaskok [199]
The answer is:  "3" .
_______________________________
Use the Pythagorean theorem (for right triangles):

a² + b² = c² ;

in which "a = "side length 1" (unknown; for which we which to solve);

               "b" = "side length 2" = "√3" (given in the figure) ;

               "c" = "length of hypotenuse" = "2√3" (given in the figure);
_____________________________________________________
a² + b² = c² ; 

a² = c² − b² ;

Plug in the known values for "c" and "b" ;

a² = (2√3)²  −  (√3)² ;

Simplify:

(2√3)² = 2² * (√3)² = 2 * 2 * (√3√3)  = 4 * 3 =  12 .

 (√3)²  = (√3√3) = 3 .

a²  = 12 − 3 = 9 .

a² = 9

Take the "positive square root" of EACH SIDE of the equation; to isolate "a" on one side of the equation;  & to solve for "a" ; 

+√(a²)  = +√9 ;

     a = 3 . 
____________________________________
The answer is:  "3" .
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3 0
3 years ago
If figure 1 has 7 tiles and figure 2 has 9 tiles figure 3 has 11 tiles what Is the rule
DIA [1.3K]

Answer:

it is 3

Step-by-step explanation:

utdkutdjtooudouslh

5 0
2 years ago
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I need some... help anyone have a clue?
IrinaVladis [17]

Answer:

(x+3)(x+5)

Step-by-step explanation:

8 0
2 years ago
If f(x) = 2x - 1 and g(x) = x^2 - 2, find [g · f](x)<br><br> please show me how to do this
larisa [96]

Answer:

(x² -7)/(2x + 1)

Step-by-step explanation:

f(x) = 2x+1 and g(x) = x² -7

thus: (g/f)(x) = g(x)/f(x) = x² -7/2x + 1

5 0
3 years ago
Read 2 more answers
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