Answer:
answer b
Step-by-step explanation:
Answer:
When dividing by 1,000 the decimal place must shift 3 places to the left.
43 can be written as 43.
Shifting the decimal 3 places to the left gives us:
.043
Step-by-step explanation:
9514 1404 393
Answer:
Step-by-step explanation:
The tangent of the angle can be found using the identity for the tangent of the difference of angles.
tan(α-β) = (tan(α) -tan(β))/(1 +tan(α)tan(β))
The tangent of the angle of each vector is the ratio of the j coefficient to the i coefficient.
tan(α) = -2/3
tan(β) = 4/7
tan(α-β) = (-2/3 -4/7)/(1 +(-2/3)(4/7))
= (-14-12)/(21 -8) = -26/13 = -2
Then the magnitude of the angle between the vectors is ...
arctan(2) ≈ 63.43°
Answer:
-6
Step-by-step explanation:
-4 + (-2)
recall that;
- * - = +
- * + = -
+ * - = -
+ * + = +
So when we expand we'll have
-4 ( + * -) *2
-4 - 2 = -6
