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konstantin123 [22]
3 years ago
14

Given f(x) =7x and g(x) = 9x^2+4

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0

Answer:

3,973 ( I really don't know for sure , just letting you know but I tried )

Step-by-step explanation:

9(-7) * 9(-7) + 4 = 3,973

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Exponents!
sweet [91]
We know that:

x^{a+b}=x^a\cdot x^b

and:

(x\cdot y)^a=x^a\cdot y^a

so:

3^{x+2}-3^{x}=6^3\cdot3^7\\\\3^x\cdot3^2-3^x=(2\cdot3)^3\cdot3^7\\\\3^x\cdot9-3^x=2^3\cdot3^3\cdot3^7\\\\3^x\cdot9-3^x=8\cdot3^3\cdot3^7\\\\
3^x\cdot9-3^x=8\cdot3^{3+7}\\\\3^x\cdot9-3^x=8\cdot3^{10}\\\\3^x\cdot(9-1)=8\cdot3^{10}\\\\8\cdot3^x=8\cdot3^{10}\quad|:8\\\\3^x=3^{10}\\\\\boxed{x=10}
4 0
3 years ago
On a bicycle Jack can travel 20 miles in 4 hours. How long will it take him to travel 75 miles?? Please help me
valentinak56 [21]
Make a proportion 20 miles/4 hours= 75miles/x. cross multiply gives you 20x=300. this will give you x = 15 hours 
3 0
4 years ago
Which of the following is protected by the FDIC?
Dmitrij [34]
The answer is C - Money Market Account
8 0
3 years ago
Find the distance between (2,3) and (5,8)
Orlov [11]
Use pythagorean theorem
a^2+b^2=c^2

first find the difference of between the 2 points to find the legnth of the legs

distance between 2 and 5=3
distance between 3 and 8=5 so


3^2+5^2=c^2
9+25=c^2
34=c^2
√34=c

the ligit formula is
c= \sqrt{(x1-x2)^2+(y1-y2)^2}

6 0
3 years ago
Which of the following represents the equation of a line that has a slope of 2 and passes through the point (-1,6)?
gavmur [86]

Answer:

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Step-by-step explanation:

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6=2(-1) + b

6= -2 + b

+2 +2

8=b

the m is the slope and b is the y-intercept

the equation is y=2x + 8

4 0
3 years ago
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