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kykrilka [37]
3 years ago
7

Explainnnnnn help me please

Mathematics
2 answers:
Georgia [21]3 years ago
6 0

Answer:

99cm²

Step-by-step explanation:

area for a triangle = 1/2 x b x h

area = 1/2 x 11 x 18

area = 99cm²

LuckyWell [14K]3 years ago
3 0
The answer is 99cm squared
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Use the long division method to find the result when 3x^3+23x^2+23x+6 is divided by 3x+2.
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Answer:

x^{2} + 7x+3

Step-by-step explanation:

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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)

 





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3 years ago
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solniwko [45]
He can make at-least 240
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2 years ago
If f(x) = (3/94), what is f(3)?
deff fn [24]

Answer:

3/94

Step-by-step explanation:

5 0
3 years ago
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