First you need to find how many yards is in 1 feet , so is equal = 3feet , Now you need to find one number that is multiply by 3 that is equal to 42 so that is : 14 .. I hope that this can help you :)
(81m^6)^1/2 = (3^4*1/2) (m^6*1/2) = 3²m³
the answer to this question is -7.25 or 7 1/4
Answer:
D (3,1)
Step-by-step explanation:
solving simultaneous equations
Arrange equations
2x+y=7
3x-4y=5
make y side cancell by addition by multiplying by 4 and 1 as shown
4{2x+y=7}
1{3x-4y=5}
8x+4y=28
3x-4y=5
11x=33
x=33/11=3
substitute for x=3 in 3x-4y=5
9-4y=5
4=4y
y=1
