Answer:
A
Step-by-step explanation:
X^2 + 6X + 8 =3
TRANSPOSE 3 TO LEFT
X^2 + 6X + 8 - 3 = 0
CALCULATE
X^2 + 6 X + 5 = 0
Answer:
<h2>x = 12</h2>
Step-by-step explanation:
First of all multiply through by 5 to eliminate the fraction
That's
Next using the addition property add 4 to both sides of the equation
We have
<u>Divide both sides by 2</u>
We have the final answer as
<h3>x = 12</h3>
Hope this helps you
Answer:
Step-by-step explanation:
Hope it helped u
A pharmacist has 40% and 80% of iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine mixture?
.
Let x = liters of 40% iodine
then
4-x = liters of 80% iodine
Using algebra:
.40x + .80(4-x) = .50(4)
.40x + 3.20-.80x = 2
3.20-.40x = 2
x = 4 liters (40% iodine)
80% iodine:
4-x = 4-4 = 0 liters needed (80% iodine)
41.=30°
43.=60°
45.=60°
47.=30°
