1/2 times 2/7 is equal to 1/7
Answer:
parallel
a quadrilateral can be a parallelogram only and only if pair of opposite sides are equal and parallel.
Answer:
A. 1200
Step-by-step explanation:
Speed in meter per minute
= (216*1000)/(3*60)
= 216000/180
= 1200
Answer:
0.51cm/s
Step-by-step explanation:
Area of a circle A = πr²
r is the radius
Rate of change of area is expressed as;
dA/dt = dA/dr • dr/dt
dA/dr = 2πr
radius r = 77cm
dA/dt = 79cm²
Get dr/dt
Substitute the given values into the formula
79 = 2π(77)•dr/dt
79 = 154dr/dt
dr/dt = 79/154
dr/dt = 0.51cm/s
Hence the rate of change of the radius is 0.51cm/s
Answer:
Inconsistent
Step-by-step explanation:
We will use the substitution method for this.
y = x + 2
-3x + 3y =6
-3x + 3(x+2) = 6
-3x + 3x + 2 = 6
2 ≠ 6
2 does not equal 6, so this would be inconsistent and on a graph parallel lines.
