Answer:
x = -1 and y = 1/2
Step-by-step explanation:
Let u = 1/x, and v = 1/y
Then the pair of equations
-3/x + 4/y = 11
1/x - 2/y = -5
Can be written as
-3u + 4v = 11 .................................(1)
u - 2v = -5......................................(2)
From (2)
u = 2v - 5 .......................................(3)
Substituting (3) into (1)
-3(2v - 5) + 4v = 11
-6v + 15 + 4v = 11
-6v + 4v = 11 - 15
-2v = -4
v = 4/2 = 2
Substituting this value of v in (3)
u = 2v - 5
u = 2(2) - 5
= 4 - 5
= -1
That is
u = -1, v = 2
Since u = 1/x, and v = 1/y, we have
1/x = -1
=> x = -1
And
1/y = 2
=> y = 1/2
Therefore
x = -1 and y = 1/2
Answer:
Step-by-step explanation:
5*m+t=4
Answer:
The x intercept is (4,0)
Step-by-step explanation:
2x +4y =8
To find the x intercept, we set y = 0 and solve for x
2x+4(0) = 8
2x= 8
Divide by 2
2x/2 = 8/2
x =4
The x intercept is (4,0)
The difference between arcsin and csc is that the result of arc sine is an angle either degrees or radians. csc or cosecant is the inverse of sine in which the value is a number with no units (as it is a ratio). These two are often mistaken but these are different
Ur equation will be
citypop * (1.13^n)
where n is the number of years