That’s how you plug it in and get the answer because when you plug in z and y value correctly you just have to follow the rule and simplify
So final answer would be +2
Answer:
Multiply 2/3 and your number. If you have a whole number, convert it to a fraction by putting it over a denominator of 1. When multiplying fractions, calculate numerator times numerator, then denominator times denominator. For example, to find two-thirds of 18, multiply 2/3 x 18/1 to get 36/3.
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Triangular sequence = n(n + 1)/2
If 630 is a triangular number, then:
n(n + 1)/2 = 630
Then n should be a positive whole number if 630 is a triangular number.
n(n + 1)/2 = 630
n(n + 1) = 2*630
n(n + 1) = 1260
n² + n = 1260
n² + n - 1260 = 0
By trial an error note that 1260 = 35 * 36
n² + n - 1260 = 0
Replace n with 36n - 35n
n² + 36n - 35n - 1260 = 0
n(n + 36) - 35(n + 36) = 0
(n + 36)(n - 35) = 0
n + 36 = 0 or n - 35 = 0
n = 0 - 36, or n = 0 + 35
n = -36, or 35
n can not be negative.
n = 35 is valid.
Since n is a positive whole number, that means 630 is a triangular number.
So the answer is True.
Answer:
Follows are the solution to the given point:
Step-by-step explanation:
please find the correct question:
In choice a:
The smallest square line would be from the production.
Purchases of Cosmetics & Makeup Demo Clips are the factors used in the calculation.
In choice b:
The proportions of its variance of maquillage sales reveal by it's a linear relation to maquillage video tutorials is 
.
In choice c:
Because the vector Cosmetics Demonstration videos are critical with 5.11E-07 p-value, which is less than 0.05 and
. It may assume that increasing making-up purchases is attributed to tutorials for online makeup.
