Answer:
178.3 mm²
Explanation:
The surface area of the regular pyramid is equal to the sum of the base and lateral areas:()
Answer:
112
Step-by-step explanation:
2(-3+63)-4(2)
112
Answer:
- 35% = 25% + 10%
- 35% = 5% × 7
Step-by-step explanation:
We don't know what you consider to be "benchmark percents", but I would choose 25% = 1/4 and 10% = 1/10 to be put into that category, simply because they are easily calculated.
Just as 35 = 25 + 10, so 35% = 25% + 10%.
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Factors of 35 are 1, 5, 7, 35
So, 35% = 1% × 35
... = 5% × 7
... = 7% × 5
... = 35% × 1
5% = 1/20 is another percentage that could be considered a "benchmark percent", so my choice for a multiple that is 35% is 5% × 7.
We have that
N 11)
a) graph the equation y=x²-3x-10
using a graph tool
see the attached figure
b) Determine the roots of the equations
the roots of the equations are the values for y=0
x²-3x-10=0
x²-3x-10=(x+2)*(x-5)=0
the roots are
x1=-2
x2=5
see the attached figure problem 11
N 12) what is the value of x in the equation?
3x²=7x
3x²=7x-------> 3x²-7x=0--------> x*(3x-7)=0
x1=0
3x-7=0------> 3x=7------> x=7/3
the values of x are
x1=0
x2=7/3---> 2.33
see the attached figure problem 12
N 13) what is the value of x in the equation?
x²-5x=6----------> x²-5x-6=0
x²-5x-6=0-------> (x+1)*(x-6)=0
the values of x are
x1=-1
x2=6
N 14) what is the value of x in the equation?
2x²-5x=12--------> 2x²-5x-12=0
using a graph tool
see the attached figure problem N 14
2x²-5x-12=0----------> (x+3/2)*(x-4)=0
the values of x are
x1=-3/2
x2=4