Answer:
radius = 6.5
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( where r is the radius )
x² + y² = 42.25 ← is in this form
with r² = 42.25 ( take the square root of both sides )
r =
= 6.5
Answer:
the first one should be 5.28x10^-2 and the second one should be 3.2x10^6
Step-by-step explanation:
because with 0.0528 you move the decimal right twice. which makes it negative.
with 3,200,000 you assume that the decimal is at the end and move it between the three and the two. making it have 6 moves. since it moves left its positive
Answer:

Step-by-step explanation:
Given:
The magnitude, v=12
The angle
it makes with the positive x-axis =
Now for a vector (x,y)
; and
Therefore:


Similarly:


Recall that:

Therefore: 
The vector in the form ai+bj is therefore:

Answer:
-16.3 ≥ q
Step-by-step explanation:
–5.3 ≥ 6.7 + 4.3 + q
Combine like terms
–5.3 ≥ 11 + q
Subtract 11 from each side
–5.3-11 ≥ 11-11 + q
-16.3 ≥ q
Answer:
D.
Step-by-step explanation:
f(x)·g(x)=(x³+2x²+3x+1)(4x-5)
=
=