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2 years ago

What is the domain and range of f(x)=(1/5)^x

Mathematics

2 answers:

Harrizon [31]2 years ago

8 0

Answersadfs:

Domain of the exponential function is (-∞, ∞)

the range is (0, ∞)

Stasdfep-by-step explanation:

$f(x)=(/frac{1}{5})^x$

Domain is the set of x values for which the function is defined. there is no restriction for x in exponential function.

Domain of the exponential function is (-∞, ∞)

Range is the set of y values for which the function is defined

For range, of we plug in positive or negative number for x the value of y is always positive because we have exponent x

Hence the range is (0, ∞)

maw [93]2 years ago

7 0

Answer:

Domain = (-∞,∞) Range = (0,∞)

This is an exponential function.

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Two grapefruits and three oranges cost $1.95. Three grapefruits and two oranges cost $2.05.

geniusboy [140]

Answer:

one orange costs $0.35 and one grapefruit costs $0.45

Step-by-step explanation:

<em>let grapefruits be g , let oranges be o</em>

so first equation:

→2g + 3o = $1.95

→g = ($1.95 - 3o)/2

so second equation:

→ 3g + 2o = $2.05

→ g = ($2.05 - 2o)/3

Solving simultaneously:

→ ($2.05 - 2o)/3 = ($1.95 - 3o)/2

→ 2($2.05 - 2o) = 3($1.95 - 3o)

→ 4.1 - 4o = 5.85 - 9o

→ - 4o + 9o = 5.85 - 4.1

→ 5o = 1.75

→ o = $0.35

Therefore one orange costs $0.35

Then one grapefruit costs g → ($1.95 - 3o)/2

→ g = ($1.95 - 3(0.35))/2

→ g = 0.45

Therefore one grapefruit costs $0.45

4 0

2 years ago

What is the answer to this maths question?<br><br> 0.24/0.012=

Igoryamba

0.24/.012 Answer= 20
You just divide the .24 by .012

4 0

3 years ago

Please please help me

Anarel [89]

so you are going to use the Pythagorean theorem on the smaller triangle to find the connecting side's length

${5}^{2} = {3}^{2} ( {b}^{2} ) \\ b = 4$

now you can find the bigger triangle's hypotenuse

${6}^{2} + {4}^{2} = {c}^{2} \\$

c=4

8 0

2 years ago

There are 6 paintings on three walls of a room. If annart gallery has 13 such rooms, how many paintings are there in its collect

SSSSS [86.1K]

Answer: (I think)

78 paintings

Step-by-step explanation:

6 x 13 = 78

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3 years ago

20). Tasha is planning an expansion of a square flower garden in a city park. If each side of the original is increased by 7m, t

Vikki [24]

144=(x+7)^2 take the square root of both sides...

12=x+7 subtract 7 from both sides...

x=5

So the original was a 5m square.

...

255=WL and you are told that W=L+2 so the equation becomes:

255=(L+2)L

255=L^2+2L

L^2+2L-255=0

L^2+17L-15L-255=0

L(L+17)-15(L+17)=0

(L-15)(L+17)=0 Since L>0...

L=15yd, and since W=L+2, W=17yd so

length=15, width=17yd

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2 years ago