The last one is not scientific notation because the 25.67 is greater than 10
15y = 7x + 8
15y - 7x - 8 = 0
i am a mathematics teacher. if anything to ask please pm me
Answer:
0.25 = 2^-2
The "^" means that -2 is an exponent on top of 2.
I will go with B.
How the data spread out is measured by standard deviation. IQR is <span>measure of variability.</span>
Answer:
B
Step-by-step explanation:
The vertex is the turning point of the parabola.
First find the zeros by equating y to zero, that is
(x - 6)(x + 12) = 0
Equate each factor to zero and solve for x
x - 6 = 0 ⇒ x = 6
x + 12 = 0 ⇒ x = - 12
The vertex lies on the axis of symmetry which is situated at the midpoint of the zeros, thus
=
=
= - 3
Thus the x- coordinate of the vertex is x = - 3 → B