Answer:
-3/4
Step-by-step explanation:
see picture below
The distance between the points (x₁,y₁) and (x₂,y₂) is calculated through the equation,
d = sqrt ((x₂ - x₁)² + (y₂ - y₁)²)
From our given, we have the point (-3,-1) and (1,y). Substituting these to the equation,
5 = sqrt ((-3 - 1)² + (-1 - y)²)
Squaring both sides,
25 = (-3 - 1)² + (-1 - y)²
The values of y from the equation are 2 and -4.
The answers are therefore: (a) <em />(<em>1, 2)</em> and (b) <em>(1, -4)</em>.
Answer:
3u-40+2u = 6u-30-u
On simplifying
5u-40= 5u-30
5u+0y-40 = 5u+0y-30 (Infinitely many solutions)
The interest is 30 dollars I believe.
Answer:
x = 21 units
Step-by-step explanation:
<em>The tangent squared is equal to the secant's total length multiplied by the secant's length without the part inside the circle.</em>
So here, that will look like: <em>36² = 27 * (27 + x)</em>
Expansion and multiplication gives us: <em>1296 = 729 + 27x</em>
Subtract from both sides: <em>567 = 27x</em>
Divide from both sides: x = 21.