Did you right the wrong answers
Answer:
Q4
●-4
●2
Q5
a) f(x) = 18x if x≤5
6x+90 if x>5
b) 150
c)
Step-by-step explanation:
Easy peasy
a circle centered at the origin is form
x^2+y^2=r^2
r=radius
point (5,-12) is on it
sub to find r^2
(x,y)
(5,-12)
(5)^2+(-12)^2=r^2
25+144=r^2
169=r^2
sqrt both sides
13=r
the radius is 13
answer is not listed
We need to find the value of n in the first equation, so you would do:
- 17 = -3 - 2n
Add 3 to both sides to cancel the -3 in the side of the n variable
- 14 = -2n
Next divide to get rid of the -2 because it is multiplied by the -2
7 = n
54 = 17n - (-3)
Since you know that a negative times a negative transforms into a positive this is what it would look like:
54 = 17n + 3
Subtract 3
51 = 17n
Divide by 17 and n would be
n = 3
