Answer:
<h2>Island A, B and C has 10, 5 and 7 houses respectively.</h2>
Step-by-step explanation:
Let, the three islands A, B and C has a, b and c houses respectively.
According to the question, a + b = 15; a + c = 17; b + c = 12; a + b + c = 22.
Adding [ a + b = 15; a + c = 17]-these two, we get, 
.
Now, 
.
.
What is the solution of 3x + 5 = 2x – 7?
the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7
the x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7
the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7
the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7
It's the first choice. If we solve the simultaneous system
y = 3x + 5
y = 2x – 7
the x coordinate (there's only one) of the meet of the two lines tells us the value of x which satisfies 3x+5=2x-7
Answer:
You didn't put a file or a question in ya question..
Step-by-step explanation:
Answer:
E
Step-by-step explanation:
is the same as 
· 
This can be simplified to 9 ·
And the square root of -1 is i,
so this equals 9i
Answer: C) 6.0025
Step-by-step explanation:
The equation for the area of a circle requires the radius, you put in the full diameter. Just divide 4.9 by 2, which gives you 2.45. 2.45 squared is equal to 6.0025 and then slap your pi on to the end of it.
