Ax^2+bx+c=0
expanded, that is the x term
in
(ax+c)(dx+e), the coefient of the b term is cd+ae
so
(2x-1)(1x+5)
the b term is (-1)(1)+(2)(5)=-1+10=9
b is 9
Answer:
7.39
Step-by-step explanation:
74.5
you have to switch the numbers for it to be a proper division problem
Hope this helps!
Answer:
<h3>p = 131.25</h3>
Step-by-step explanation:
The variation p varies directly with T is written as
p = kT
where k is the constant of proportionality
To find p when T =500 we must first find the formula for the variation
That's
when p = 105 and T = 400
105 = 400k
Divide both sides by 400
<h3>

</h3>
So the formula for the variation is
<h2>

</h2>
when
T = 500
Substitute it into the above formula
That's

Simplify
The final answer is
<h3>p = 131.25</h3>
Hope this helps you
Answer:
sin A = 
Step-by-step explanation:
sin A = opposite side/hypotenuse
sin A =
/ 12 = 