Answer:
0.2
Step-by-step explanation:
To calculate the scale factor of dilation, we need to divide the length of similar lines of parallelograms.
let the scale factor of dilation be 'x',
now,
x = 
= 
= 0.2
Answer:
Step-by-step explanation:
given
m∠A=(9y-15)°,
m∠B=(y^2+20)°, and
m∠C=(y+31)°.
In a triangle
m∠A+m∠B+∠C=(9y-15)°+(y^2+20)°+(y+31)°
m∠A+m∠B+∠C =10y+y^2-15+20+31
m∠A+m∠B+∠C =10y+y^2+36
m∠A+m∠B+∠C=y^2+10y+36
m∠A+m∠B+∠C=180°
y^2+10y+36-180=0
Y^2+10y-144=0
Y^2+(18-8)y-144=0
Y^2+18y-8Y-144=0
Y(Y+18)-8(Y+18)=0
(Y+18)(Y-8)=0
We should take positive value of Y so we take Y=8
So value of angle c is
m∠C=(y+31)°.
=(8+31)°
=39°
So the value of angle c is 39°.
X can be a value of any number less than 0.9.
Solved, this is x<1 as an inequality.
Answer:
x^3 - 3x^2 +2x
Step-by-step explanation:
Use the distributive property