Answer:
Physical and chemical changes can occur in matter. The look of material changes as a result of a physical change. Physical changes are sometimes known as phase changes. When materials change phase, they transition from solid to liquid, liquid to gas, or some other combination. If you mix materials together and see fire, bubbles, or a change in color, you might be able to see a chemical shift.
5x^2= 2205
Divide both sides by 5
x^2=441
Find the square root of both sides
x= 21
To evaluate the radius of the cone we proceed as follows:
V=1/3 πr²h
plugging in the values, v=88π, h=8 ft
step 1
88π1/3πr²(8)
step 2
88π=8/3πr²
step 3
divide both sides by π
88=8/3r²
multiply both sides by 3/(8)
88(3/8)=r²
step 4
simplify
33=r²
step 5
get the square root
r=√33
Thus the mistake that Fatima made was:
<span> In step 3, Fatima did not multiply 88 by the reciprocal of 8/3 </span>
Add 3/4 foot to 2/12 foot. The LCD here is 12.
Thus, add 9/12 foot to 2/12 foot. Answer: 11/12 foot.
Are you sure you copied down that "2/12" correctly? Note that 2/12 = 1/6
You can use estimation.
80×130=10,400
Clearly 10,400 and 94 are way off.
