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KonstantinChe [14]
2 years ago
11

Anyone know what is 7(8+x+2)

Mathematics
1 answer:
Komok [63]2 years ago
6 0

Answer: 7x + 70

Step-by-step explanation:

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Evaluate the expression when a= 4 and b= -7. <br> -9a+b
Helen [10]

Answer:

-43

Step-by-step explanation:

So first things first you will multiply -9 by 4 and that gives you -36, Next you will add -7 to -36 which gives you -43.

-9(4)+(-7)\\-36+(-7)  \\= -43

Hope this helps :D

4 0
3 years ago
Read 2 more answers
Determine the range of the function. (0,2) (2,4) (4,6) (6,8) (8,10)
stealth61 [152]
The answer might be f(x)≥2
7 0
3 years ago
Read 2 more answers
a country's population in 1990 was 134 million. in 2000 it was a 139 million. estimate the population in 2014 using the exponent
yuradex [85]
F=ir^t

139=134r^10

139/134=r^10

r=(139/134)^(1/10) then:

f=134(139/134)^(t/10)  so in 2014, t=24 so

f=134(139/134)^(2.4)

f≈146 million  (to nearest million)

Some will say that you have to use the exponential function, but it really gives you the same answer...even for continuous compounding :)...

A=Pe^(kt)

139=134e^(10k)

139/134=e^(10k)

ln(139/134)=10k

k=ln(139/134)/10 so

A=134e^(t*ln(139/134)/10)  when t=24

A=134e^(2.4*ln(139/134))

A≈146 million (to nearest million)

The only real reason or advantage to using A=Pe^(kt) is when you start getting into differential equations...
6 0
3 years ago
Does this graph show a function? Explain how you know.
LekaFEV [45]

Answer:

A

Step-by-step explanation:

It may look like it failed but it didn't. Nun of the points duplicate

6 0
2 years ago
Question 1<br> Simplify<br> √-100?
Hitman42 [59]

Answer:

√100 = 10

so √-100 =

i√10

6 0
3 years ago
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