Answer:
x = √12
Step-by-step explanation:
Easy:
3x^2 = 36
Cancel out the 3 so it is only x^2; you can do this by dividing each side by 3 which gives you:
x^2 = 12
Square root the entire thing to get rid of the square and you get the answer
x = √12
Answer:
Line Segment EF passes through the center of the dilatation
Step-by-step explanation:
I just know...
X-intercept = 25.
y-intercept = -20.
To find the x or y intercept you're trying to find the point in which the line crosses that particular axis. In other words, you would want to find what x equals when y is zero and what y equals when x is zero.
- 4(0)-5y=100 : 5y=100, 100/5= 20, y-intercept = -20
- 4x-5(0)=100 : 4x=100, 100/4= 25, x-intercept = 25
- x-intercept is (25,0) ; y-intercept is (0,-20)
Answer:
110°
Step-by-step explanation:
This quadrilateral have the same size in AD and CD, and BA and CA, so it means that, if you cut this figure in the middle (from B to D), the two triangles will be identical, and the sum of the internal angles of a triangle is 180°, so:
(110°÷2) + (30°÷2) + <C = 180°
55° + 15° + <C = 180°
70° +<C = 180°
<C = 180° - 70°
<C = 110°
And you can test it making the sum of the internal angles of the quadrilateral. The sum of the internal angles of a quadrilateral is 360°, and the angles A and C have the same measure because AD=CD and AB=BC, so:
<A + <B + <C + <D
110° + 110° + 110° + 30° = 360°