Answer:
(–∞, -4)
Step-by-step explanation:
Answer:
C I think
Step-by-step explanation:
Step-by-step explanation:
I think the typing of the answer options must have some typos.
the magnitude of a vector is the length of the vector.
the length of the vector is Pythagoras over its coordinates.
this vector goes from (3, -6) to (-4, 1), so the relative vector coordinates are -4 - 3 and 1 - -6 = -7, 7.
so the magnitude of length of the vector is
sqrt((-7)² + 7²) = sqrt(49+49) = sqrt(98)
= 9.899494937...
the direction angle is the angle of the vector with the x-axis.
it is the inverse tan of y/x. and in this case in the second (upper left) quadrant, since the vector is pointing up and left.
the inverse tan of 7/-7 = inverse tab of 1/-1 =
inverse tan of -1 in the second quadrant is 135°.
Whole number is are numbers like 0, 1, 2, 3, 4...... and so on
negatives, fractions, decimals, and irrational numbers are not whole numbers
so the whole number portion of the two numbers are <u> 5 and 418</u>
