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disa [49]
3 years ago
12

What is the range of the exponential function shown below f(x)=2•7^x

Mathematics
1 answer:
Gemiola [76]3 years ago
4 0

This is rather a sneaky question. You don't know exactly what numbers you can use and what numbers not.

For example, are you allowed to use x = -  3. The answer is yes

f(-3) = 2*7^(-3) = 2/7^3 = 2/147.

How about 0? If there is going to be a problem, zero is usually the number that causes the problem.

f(0) = 2*7^(0) = 2 * 1 = 2 and in this case 0 is just fine.

How about positive numbers? No they are all good.

So the range is -∞ < y < ∞

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A restaurant offers a catering service which costs $25.00 per person with a $119.50 service charge. For parties of 50 or more pe
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Answer:

T1(n) = 25n +119.50  where n belongs to 1 \leq n.

T2(n) = 20n + 59 where n belongs to 50\leq  n.

Step-by-step explanation:

We are given two situations first is for normal days and the other is for days when 50 or more people are going to this restaurant for the party.

Let the number of person going for this restaurant be "n"

For normal day, we are given

catering service = $25 per person

service charge = $119.50  

Let the total cost of the restaurant be T

Cost for this case will be T1  

T1(n) = 25n +119.50  where n belongs to 1 \leq n

similarly for the case when 50 or more than that goes to this restaurant for party.

cost after discount

Catering service = $20.00 per person

service charge = $59.00

now the cost of this case will be T2

T2(n) = 20n + 59 where n belongs to 50\leq  n.

Therefore the two piecewise linear functions represents the total cost of the restaurant for serving n people.  

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3 years ago
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iVinArrow [24]
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Which set of fractions is ordered from least to greatest? 2/6,1/4,4/10 1/4,2/6,4/10 4/10,2/6,/14 or 1/4,4/10,2/6
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Answer:

1/4, 2/6, 4/10

Step-by-step explanation:

1/4 = .25

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4/10 = .4

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