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AfilCa [17]
4 years ago
9

Y=f(x)=(-5)^x find f(x) when x=-1

Mathematics
2 answers:
juin [17]4 years ago
8 0
f(x) = (-5)^x

When x = -1,

f(-1) = (-5)^{-1} =  -\dfrac{1}{5}

Answer: -1/5
olganol [36]4 years ago
5 0

Answer:

0.2

Step-by-step explanation:

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Ƒ(x) = x2 + 2x − 15 to find the solution when ƒ(x) = 0.
lozanna [386]

Answer:

f = 2 + -15x-1 + x

Step-by-step explanation:

Simplifying

f(x) = x2 + 2x + -15

Multiply f (x)

fx = x2 + 2x + -15

Reorder the terms:

fx = -15 + 2x + x2

Solving

fx = -15 + 2x + x2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = -15x-1 + 2 + x

Simplifying

f = -15x-1 + 2 + x

Reorder the terms:

f = 2 + -15x-1 + x

3 0
3 years ago
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Please help I don’t understand
marta [7]

Answer:

x = 5

Step-by-step explanation:

The 2 strokes through XM and MY indicate the segments are congruent, so

YM = MX , that is

8x - 24 = 3x + 1 ( subtract 3x from both sides )

5x - 24 = 1 ( add 24 to both sides )

5x = 25 ( divide both sides by 5 )

x = 5

4 0
3 years ago
Pythagorean Theorem please help
I am Lyosha [343]
2^2+b^2=12^2
4+b^2=144
144-4=140
√140 = √b
11.83 = b
7 0
3 years ago
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Please help I’m stuck on this question!
lisabon 2012 [21]

\frac{a}{2}  =  \frac{3}{2 }  \\ a = 3

6 0
3 years ago
3x + 5y = 30
GrogVix [38]

Answer:

y= - \frac{3x}{5}  + 6

Step-by-step explanation:

The given linear equation is

3x + 5y = 30

To solve for y, we first subtract 3x from both sides to obtain:

5y = 30 - 3x

Divide through by 5

\frac{5y}{5}  =  \frac{30}{5}  -  \frac{3x}{5}

This simplifies to

y= 6-  \frac{3x}{5}

Or

y= - \frac{3x}{5}  + 6

3 0
3 years ago
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