(3r)/(r-5) = (r+2)/(r+3)
(3r)(r+3)=(r-5)(r+2)
3r^2 +9r= r^2-3r-10
2r^2+12r+10=0
2(r^2+6r+5)=0
2(r+5)(r+1)=0
r=-1 or r=-5
Answer:
c i think soory if wrong
Step-by-step explanation:
If the number is n then
square of 2 times a number
square of 2n
(2n)²
that was your mistake, because (2n)²=4n², not 2n²
the result is 81
(2n)²=81
square root both sides
remember positive and negative roots
2n=+/-9
divide by 2
n=+/-4.5
n=4.5 or -4.5
Distributive property of division: (a + b) : c = a : c + b : c
96 : 6 = (90 + 6) : 6 = 90 : 6 + 6 : 6 = (60 + 30) : 6 + 1
= 60 : 6 + 30 : 6 + 1 = 10 + 5 + 1 = 16
Answer:
y= 0x + 9
Step-by-step explanation:
y1-y2 To find Y intercept, add a point and solve
-------- <u>PLease give me brainliest!!!!</u>
x1-x2
