Answer:
x=-1 and x=5
Step-by-step explanation:
we have
Solve it by completing the square method
We take the coefficient of x that is -4, divide it by 2 and then square it
so
square it
Adds 4 both sides
Combine like terms right side
Rewrite as perfect squares
take square root both sides
therefore
<span>W=x
L=2x+1
Area=(2x+1)x=28
2x</span>²<span>+x=28
2x</span>²<span>+x-28=0
(2x-7)(x+4)=0
x=3.5, -4. (3.5 makes more sense)
2x+1=8
area = 28 ft</span>²<span>
width = 3.5 feet | length = 8 feet.</span>
Answer:
562.5ml
Step-by-step explanation:
using percentage multipliers you just have to do:
add 0.25 to 1 because that will make 125%
then multiply it by 450ml
450ml x 1.25 = 562.5ml
∠A+∠B=∠ACD
So, ∠A=93-31=62°
I think it mean that, right?