Answer:
2^6
64
Step-by-step explanation:
The surface area of the stool is 3629.84 square cm
<h3>How to determine the surface area?</h3>
The radius is given as:
r = 34.2
The surface area is calculated using:
A = πr^2
So, we have:
A = 3.14 * 34^2
Evaluate
A = 3629.84
Hence, the surface area of the stool is 3629.84 square cm
Read more about surface area at:
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Answer:
you should've paid attention in class :/
Step-by-step explanation:
Y =ax² + bx +c
1) Point (0,7)
7 = a*0² +b*0 +c
c = 7
y=ax² + bx + 7
2) Point (1,4)
4=a*1² + b*1 + 7, ----> 4 = a +b + 7, ------>
a+b= - 3
3) Point (2, 5)
5=a*2² + b*2 + 7, ----> 5=4a+2b +7,---> -2=4a+2b, ---->
-1=2a + b
4)
a+b= - 3, ----> b= -3 - a (substitute in the second equation)
2a+b= -1
2a - 3 - a = -1, ----> a - 3 = -1,
a =2
5) a+b= - 3
2 + b = -3
b = -5
y=2x² - 5x + 7