Answer:
yy po sa points heheheheheheh
Answer:
4/9*1/2
Step-by-step explanation:
The value of y for the system of equation is -1/2 .
<h3>What is a System of Equation ?</h3>
A system of equation is a set of equation that have common solution
The set of equation given is
3x+4y=4
2x−4y=6
To solve the system , Elimination method will be used
Add equation 1 and 2 to eliminate y
5x = 10
x = 2
Substitute the value of x in equation 1 to determine y
3x +4y = 4
6 + 4y = 4
4y = -2
y = -1/2
Therefore the value of y for the system of equation is -1/2 .
To know more about System of Equation
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The sum of ext. angles on any convex polygon is always 360 degrees
Answer:
Step-by-step explanation:
here
total surface area(TSA)= 462 cm²
TSA=3πr²
462 = 3*22/7*r²
462*7=66r²
3,234=66r²
3,234/66=r²
49=r²
√(49=r
r=7
therefore the radia of the hemisphere is 7
now,
volume of hemisphere(V) = (2/3)πr²
V=(2/3)*(22/7)*7²
V=44*7
V=308
