A = ((B+b)*h)/2
A = ((6+4)*3)/2
A = 15
Answer:
v = 2/5 Or v = 0.4
Step-by-step explanation:
12/5 = 6v
to isolate V divide both sides by 6
(12/5) : (6)= 6v : (6)
For the left side because there is a fraction when you devide you change it into multiplication, flipping the addent and quotient so you’ll have
12/5 * 1/6 (you semplify the cross numbers) you’ll have 2/5
on the right side the 6 cancel each other. Because 6/6 = 1. so you will have 1v which is v.
2/5 = v
or decimal form
0.4 = V
Step-by-step explanation:
well, the starting equation and the target format have been given.
let's do the multiplications and compare the target with the starting information.
from there we see what is different or missing.
x² + 14x + 13 = 0
and
(x - p)² = q
x² - 2px + p² = q
x² - 2px + (p² - q) = 0
now let's compare the different parts :
x² = x²
-2px = 14x
-2p = 14
p = -7
p² - q = 13
-7² - q = 13
49 - q = 13
36 - q = 0
q = 36
so, the square (x - p)² = (x + 7)² is completed when
x² + 14x + 49 = 0
but we have only "+ 13". so we need to add 36 to get 49. but we need to do it on both sides, to keep the equation true :
x² + 14x + 13 + 36 = 36
x² + 14x + 49 = 36
(x + 7)² = 36
just as we calculated already above.
and now this can be solved by pulling the square root on both sides (a quadratic equation has always 2 solutions)
x + 7 = ±6
x1 = 6 - 7 = -1
x2 = -6 - 7 = -13
Answer:
is that 12.75 or 2.75
Step-by-step explanation:
Just use Online free calculator
