discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0
since discriminant <0, graph is always positive, x has no real roots
Answer:
34 hundredhs
Step-by-step explanation:
27 plus 7= 34
Answer:
0.40
Step-by-step explanation:
Change the divisor 1.8 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.
We then have the equations:
7.2 ÷ 18 = 0.40
and therefore:
0.72 ÷ 1.8 = 0.40
Both calculated to 2 decimal places.
Answer:
<h2>r = 8</h2>
Step-by-step explanation:
The standard form of an equation of a circle:
(h, k) - center
r - radius
We have the equation:
Therefore the center is (0, 0) and the radius r = 8
True, because "or" is a logical sum.
true = 1
false = 0,
sum (1+0) = 1, true.
