Answer:
It should be -5
Step-by-step explanation:
Answer:
Step-by-step explanation:
theres 2 possible solutions for each equation and each one is right
or for dummies, just reverse the +/- inside the l x +/- y l. and make 2 different equations the first with a + and the second with a -
1. lb-6l = 1
b - 6 = 1
b = 7
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b + 6 = 1
b = -5
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2. lb+2l=7
b + 2 = 7
b = 5
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b - 2 = 7
b = 9
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Answer:
See explanation
Step-by-step explanation:
Let our two digit number be 26
Next, we rewrite it as a difference of two numbers
26=32-6
We want to square 26 using the identity:
In this case,
Substituting into the identity
Assuming the question is what Ivan is saying possible the answer is no based on multiplication. He could get at most 8 12-inch fence posts.
12 x 8 = 96 leaving him 8 more inches of board.
12 x 9 = 108 meaning he would need 4 more inches of lumber to make his last fence post uniform with the rest.
Answer:
I am not sure but the answer may be 36 w