To solve the exercirses which are shown in the figure attached, you must follow the proccedure below:
7) (x)=x³-6x²+8x
(x)=x(x³-6x²+8)
(x)=(x-4)(x-2)x
The lenght is: x
The height is= (x-4)
8) √(2x+8)-6=4
1. You need to clear the variable "x". Then:
√(2x+8)=4+6
√(2x+8)=10
(√2x+8)²=10²
2x+8=100
2x=100-8
x=92/2
x=46
9) l4x+3l=9+2x
1. To solve the left member, you must evaluate two cases: it could be positive,or negative. Then:
2. Negative:
l4x+3l=9+2x
-4x-3=9+2x
-4x-2x=9+3
-6x=12
x=12/-6
x=-2
3. Positive:
l4x+3l=9+2x
4x+3=9+2x
4x-2x=9-3
2x=6
x=6/2
x=3
Answer:
C and D
Step-by-step explanation:
98 < C < 104
180 - 25 - < C < 180 - 25 - 51
98 < C < 104
Measures the interior angles of a triangle sum to 180
I wrote my decision on a piece of paper.
(f.g)(1) = 18
Step-by-step explanation:
We are given:
f(x) = x^3+3
g(x) = 2x +4
We need to find (f.g)(1)
Solving (f.g)(1) :
So, (f.g)(1) = 18
Keywords: Composite Functions
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