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alina1380 [7]
3 years ago
10

What is the domain of f(x) = 5^x - 7?

Mathematics
1 answer:
oee [108]3 years ago
5 0
X belongs to all real numbers
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In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years. Assuming that life expectancy bet
Darya [45]

Answer:

49145 years

Step-by-step explanation:

In a certain country the life expectancy for women in 1990 was 45 and in 2000 it was 85?years.

Assuming that life expectancy between 2000 and 2100 increases by the same percentage as it did between 1900 and 2000,what will life expectancy be for women in 2100?

In 10 years, the expectancy increased by 85/45 = 17/9

between 2000 and 2100, it will increas by 10 time 10 years, so expected expectancy is  85*(\frac{85}{45})^{10} = 49145  years

4 0
3 years ago
NEED HELP PLZ!!!!!!!!!!!!!
podryga [215]

Answer:

1st Option is correct

Step-by-step explanation:

Just keep adding 150 to see the results

8 0
2 years ago
Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total
ololo11 [35]

Answer:

Step-by-step explanation:

c + f = 16......c = 16 - f

340c + 910f = 9430

340(16 - f) + 910f = 9430

5440 - 340f + 910f = 9430

-340f + 910f = 9430 - 5440

570f = 3990

f = 3990/570

f = 7 <====== 7 first class tickets bought

c + f = 16

c + 7 = 16

c = 16 - 7

c = 9 <====== 9 coach tickets bought

3 0
3 years ago
The graph of which function passes through (0,3) and has an amplitude of 3?
evablogger [386]
The choices are supposed to be
f(x) = sin x + 3
f(x) = cos x + 3 
f(x) = 3 sin x
f(x) = 3 cos x

The amplitude is the value of the numerical coefficient of sin or cos. The only possible answers are
f(x) = 3 sin x
f(x) = 3 cos x

Next, the function must pass through the point (0,3)
3 sin 0 = 0 and
3 cos = 3

Therefore, the answer is
f(x) = 3 cos x<span />
6 0
3 years ago
Read 2 more answers
What is the quotient of this division problem?<br> 836 = 246 = ?
g100num [7]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
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