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My name is Ann [436]
3 years ago
15

Given that f(x)=2x+1 and g(x) = -5x+2, solve for f(g(x)) when x = 3

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0
<span>f(x)=2(3)+1=6+1=7 g(7) put x=7 in g(x)</span>
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According toThe Humane Society in 2009 33% of US households owned at least one cat and 56% of households who did own cats owned
taurus [48]

Answer:

<h2>21.4368 ≅ 21.44 million households owned at least two cats.</h2>

Step-by-step explanation:

Total number of households were 116 million.

Hence, 100% = 116 million.

33% of the total US households owned at least one cat.

Hence, the number of household having at least one cat is \frac{33\times116}{100} = \frac{3828}{100} = 38.28 million.

It is also given that 56% of that 38.28 million households owned at least 2 cats.

Hence, the number of households having 2 cats is \frac{56\times38.28}{100} = \frac{2143.68}{100} = 21.4368 million.

7 0
3 years ago
Y = 6x - 13<br> 5x - 2y = 5<br> Using the substitution method
tankabanditka [31]

Answer:

x=3, y=5

Step-by-step explanation:

7 0
3 years ago
What 2 numbers add to get 2 and multiply to 4
rusak2 [61]
Factor 4
4=1 times 4
2 times 2
they don't add to 2
set up equation
x+y=2
xy=4

first equation, subtract x from both sides
y=2-x
subsitute for y
x(2-x)=4
distribute
2x-x^2=4
add x^2
2x=x^2+4
subtract 2x
0=x^2-2x+4
use quadratic formula which is
if you have ax^2+bx+c=0 then
x=\frac{ -b+/-\sqrt{b^{2}-4ac} }{2a} so

1x^2-2x+4=0
a=1
b=-2
c=4
x=\frac{ -(-2)+/-\sqrt{(-2)^{2}-4(1)(4)} }{2(1)}
x=\frac{ 2+/-\sqrt{4-16} }{2}
x=\frac{ 2+/-\sqrt{-12} }{2}
we have \sqrt{-12} and that doesn't give a real solution
therefor there are no real solutions
but if you want to solve fully
x=\frac{ 2+/-2\sqrt{-3} }{2}
i=\sqrt{-1}
x=\frac{ 2+/-2i\sqrt{3} }{2}
x=1+/-i\sqrt{3}
x=1-i\sqrt{3} or x=1+i\sqrt{3} (those are the 2 numbers)

 





6 0
4 years ago
Myras stamp collection consisted of 120 stamps in October by the following March her collection had grown to 138 stamps by how m
Karolina [17]
The answer is 18. Just take the number that comes later and simply subtract from the original number. EXAMPLE- 138-120=18. Hope this helps.
8 0
3 years ago
Read 2 more answers
Given that EFGH is a kite, what is m∠EHG?
yuradex [85]
Assuming angle F is 68°, angle H will be
.. 360° -2*102° -68° = 88° . . . . . . . . selection B
8 0
4 years ago
Read 2 more answers
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