Answer:
B.
Step-by-step explanation:
(1,-8) sorry if you needed an explanation i am not good at that. Hope this helped!!
Answer:
Simplifying
2x + -15 + x + -5 = 148
Reorder the terms:
-15 + -5 + 2x + x = 148
Combine like terms: -15 + -5 = -20
-20 + 2x + x = 148
Combine like terms: 2x + x = 3x
-20 + 3x = 148
Solving
-20 + 3x = 148
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '20' to each side of the equation.
-20 + 20 + 3x = 148 + 20
Combine like terms: -20 + 20 = 0
0 + 3x = 148 + 20
3x = 148 + 20
Combine like terms: 148 + 20 = 168
3x = 168
Divide each side by '3'.
x = 56
Simplifying
x = 56
Hello from MrBillDoesMath!
Answer: 8 * pi (inches^2)
Discussion:
From Plane Geometry the circumference of a circle of radius "r" is
2 * pi * r
In this case, AB is a radius of the circle so the circumference is
2 * pi * 4 = 8 pi
Regards, MrB
I'll go out on a limb here, and assume that you want a unit rate,
although technically, you haven't asked ANY question.
==> 13.66¢ per ounce
==> 7.32 ounces per dollar
Answer:
1) The student didn't add copper sulfate but instead he added calcium carbonate.
2) The heated solution should be left to get bigger crystals and should not be instantly allowed to evaporate.
3) He should use copper carbonate not calcium carbonate.
4) Sulfuric acid was added instead of hydrochloric acid.
5) Add solid excessively so that all of the acid is retained.
6) Filter the solution to remove unreacted solid.
7) Heat gently, so the crystals will start to appear.
