Answer:
b : a = 1 : 4
Step-by-step explanation:
<em>
=
</em>
<em>3 ( a + b) = 5 ( a - b)</em>
<em>3 a + 3 b = 5 a - 5 b</em>
<em>5 b + 3 b = 5 a - 3 a</em>
<em>8 b = 2 a</em>
<em>
=
</em>
b : a = 1 : 4
Answer:
2(x^4+2x^3+18)
Step-by-step explanation:
1.)2x^4+4x^3+6^2
2.)2x^4+4x^3+36
3.)2(x^4+2x^3+18)
Answer:
The population standard deviation is 1.92.
Step-by-step explanation:
Population mean:
Sum of all values divided by the number of values. Thus:

Population standard deviation:
Square root of the division between the sum of the difference squared of each value and the mean, and the number of values. Thus.

The population standard deviation is 1.92.
Answer:
21/8*2= 5 2/8 or 5 1/4
Step-by-step explanation:
Divide fraction so keep change flip
make them improper
21/8 * 2
42/8
5 2/8
5 1/4