Answer:
9in
Step-by-step explanation:
54 = 1/2(12*x)
54 = 6*x
x = 9
Check
12 x 9 = 108
108/2 = 54
A+bi is the form of a complex number. a is on the x axis, bi is on the y axis:
3-4i ( x positive, y negative) Q4
-1-3i (both x, y negative) Q3
4+i ( both x, y positive) Q1
-2+2i (x neg, y pos) Q3
84 miles.
You just have to take half of 56 (28) and add it to 56 to get 84
Yes, they can be added and simplified further. 2√3 + 5√3 = 7√3 .
Take √3 as common factor:
2√3 + 5√3
(2 + 5)√3
7√3
The two irrational numbers sums to form another irrational number 7√3 . In decimals that is 12.12435...
Answer:
1. (8,-4), sqrt(12) = 2×sqrt(3)
2. (-8,4), 9
3. (0,5), 3
4. (-4,-5), 8
5. (7,3), 12
6. x^2 + (y+5)^2 = 49
7. (x-6)^2 + (y+1)^2 = 144
8. (x+2)^2 + (y-3)^2 = 16
9. (0-0)^2 + (7-3)^2 = r^2
0 + 16 = r^2
=> r = 4
Step-by-step explanation:
remember, the general equating of a circle is
(x-h)^2 + (y-k)^2 = r^2
