Answer:
5x + 3y = 12
Step-by-step explanation:
We are given the line 5x + 3y = 6 and are to find the equation of a new line that is parallel to this one and goes through (3, -1).
Parallel lines have the same slope. The slope of the given line is determined by the coefficients 5 and 3 visible above. Therefore, the form of the equation of the new line is 5x + 3y = C, where we must determine the value of C.
Substitute 3 for x and -1 for y in 5x + 3y = C, obtaining: 5(3) + 3(-1) = C. Then 15 - 3 = 12 is the constant value, and the equation of the 'new line' is
5x + 3y = 12
Answer:
(x+1)(x-3i) (x+3i)
Step-by-step explanation:
x^3 + x^2 + 9x+9
We will use factor by grouping
Factor out x^2 from the first group and 9 from the second group
x^3 + x^2 + 9x+9
x^2( x+1) + 9(x+1)
Factor out (x+1)
(x+1) ((x^2+9)
Now factor x^2+9
x^2 -(3i)^2 = (x-3i) (x+3i)
Replacing this
(x+1)(x-3i) (x+3i)
<h2><em>3, 3/1. Only 2 ways to write it.</em></h2>
Answer:
Step-by-step explanation:
In acidic reaction , equivalent weight of potassium dichromate is
mol weight / 6
= 294 / 6
49 g
equivalent weight of alcohol = 46 g
31.05 cc of .06M of potassium dichromate
= 31.05 x .06 cc of M potassium dichromate
= 1.863 cc of M potassium dichromate
= 1.863 x 6 cc of N potassium dichromate
= 11.178 cc of N potassium dichromate
== 11.178 cc of N alcohol
= (11.178 / 1000 ) x equivalent weight of alcohol
= (11.178 / 1000 ) x 46 g
= .514 g
30 g of blood contains .514 g of alcohol
100 g of blood contains (0.514 / 30) x 100
= 1.71 % of alcohol.
