Answer:
Alternate interior angles have the same measure. As we know that 'angle 1 ' and 50° are alternate interior angles hence they must be equal. Also we now that sum of all the angles of a triangle is equal to 180°. Hence, m∠2=15°
Step-by-step explanation:
The discriminant of
ax^2+b+c=0 is
b^2-4ac
when the discriminant is
less than 0, then there are no real roots
equal to 0, then there is 1 real root
greater than 0, then there are 2 real roots
so
2x^2-5x+7=0
a=2
b=-5
c=7
discriminat=(-5)^2-4(2)(7)=25-28=-3
-3<0
no real roots
Answer:
0.36
Step-by-step explanation:
0.4=4/10
0.9=9/10
9/10 times 4/10= (9 times 4)/(10 times 10)=36/100=0.36
Another way you could've done it was to see that since there are 2 decimal points there, the product would also have to have 2 decimal points.
