Jessica was solving an equation. After she finished simplifying, her result was 0 = 2. This result confused her. Explain to Jess
1 answer:
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Answer:
Let the vectors be
a = [0, 1, 2] and
b = [1, -2, 3]
( 1 ) The cross product of a and b (a x b) is the vector that is perpendicular (orthogonal) to a and b.
Let the cross product be another vector c.
To find the cross product (c) of a and b, we have
c = i(3 + 4) - j(0 - 2) + k(0 - 1)
c = 7i + 2j - k
c = [7, 2, -1]
( 2 ) Convert the orthogonal vector (c) to a unit vector using the formula:
c / | c |
Where | c | = √ (7)² + (2)² + (-1)² = 3√6
Therefore, the unit vector is
or
[ ,
,
]
The other unit vector which is also orthogonal to a and b is calculated by multiplying the first unit vector by -1. The result is as follows:
[ ,
,
]
In conclusion, the two unit vectors are;
[ ,
,
]
and
[ ,
,
]
<em>Hope this helps!</em>
Answer:
Step-by-step explanation:
To solve this problem, we can use the area of a circle formula:
<em>A = area</em>
<em>r = radius</em>
Lets plug the values into the equation:
Calculate
Multiply
and 9 together
The area of the truck wheel is
Ignore the rest but that’s the answer
