Basically those lines next to the problem are absolute value signs. Get rid of those then your problem is solved.
answer is c.
No, absolute value is always positive, but the answer is -4.
This is because the definition of absolute value is the number of units or points from zero on a number line. The regular answer of 3-7 would be -4. But the absolute value of -4 is 4 because it is just regularly 4 digits away from zero on a number line. Make sense?
=5 i − 3 j −i − 6 j = 4 i - 9 j ---answer
A - B
= 5 i − 3 j + i + 6 j = 6 i + 3j ---answer
= sq root [ 16 + 81] = 9.848 ---answer
|A - B|
= sq root [ 36 + 9] = 6.708 ---answer
directions of A+ B
= tan (-1) -9 /4 = - 66 deg --answer
direction of A- B
= tan (-1) 3 /6 = 26.56 deg --answer
to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.
answer: answer: d) v= 1/6 bh
since according to the given question, a pyramid is placed inside a prism.