Answer:
mmm, well, not much we can do per se, you'd need to use a calculator.
I'd like to point out you'd need a calculator that has regression features, namely something like a TI83 or TI83+ or higher.
That said, you can find online calculators with "quadratic regression" features, which is what this, all you do is enter the value pairs in it, to get the equation.
Step-by-step explanation:
Answer:

Step-by-step explanation:
The LCM of 14, 21 and 6 is 42
We require to change the fractions to fractions with a denominator of 42
+
+ 
=
+
+
← add the numerators, leaving the denominator
= 
=
← divide both values by 2
=
← in simplest form
78.5/100 as a decimal is just 0.78.5 and as a percent it is 78.5 %
I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5
Answer:
1728
Step-by-step explanation:
2
r h
2
(11) × 14
968
B=
B=
11^2 =121
S=2
rh + 2
S=968 +2 x 121
S=968 +242
= 1728