Answer:
31.4 cm
Step-by-step explanation:
Let C be the circumference and r be the radius of the circle.

Answer:
<h3>a. Give an example for which Arial's claim is true.</h3>
If linear relations have equal coefficient about the independent variable, then those linear relations are parallel. For example,
and
.
Notice that the coefficient of the dependent variable must be also equal, otherwise it would change the slope of the expression and they wouldn't be parallel.
<h3>b. Give an example for which Arial's claim is false.
</h3>
The statement is not false.
<h3>c. Suggest an improvement to Arial's claim.</h3>
An improvemente would be that the constant term no need to be equal too, between linear relations, because they can be at "differecent heights", sort of speak.
Answer:
4Na + 1O2 > 2Na2O
SF6 > 1S + 3F2
2FE2O3 > 4FE + 3O2
Step-by-step explanation:
1. Identify the Products and Reactants(always do O2 last)
2. determine how many atoms of each element are present on each side of the equation
3. Add Coefficients and never change the subscripts. If there's a coefficient in front of any compound, it is distributed to both elements.
4. find the total number of atoms on both sides of the equation and make sure they equal with each other
Answer:
gtfcxadx
Step-by-step explanation:
fdcvc dxz
30.007
300/10=30
7/1000=.007
30+.007=30.007