Answer: 0
Step-by-step explanation:
-9(x + 3) + 12 = -3(2x + 5) − 3x
Opening the brackets we have
-9x - 27 + 12 = -6x - 15 -3x
collect like terms
-9x+6x+3x = -15-12+27
= 0
I would like you to use the two-step equation process please.
Breed 1: {45, 38, 49, 52, 51}
Breed 2: {36, 35, 44, 50, 40}
Breed 1 dogs and Breed 2 dogs have similar weight distributions.
Breed 1 dogs and Breed 2 dogs have no overlap in their weight distributions.
Breed 1 dogs and Breed 2 dogs have somewhat similar weight distributions.
Breed 1 dogs and Breed 2 dogs have identical weight distributions.
She infer about the weights of Breed 1 dogs and Breed 2 dogs is;
Breed 1 dogs and Breed 2 dogs have no overlap in their weight distributions.
Hence, Option B is the correct answer.
A set is a collection of well defined elements or objects. A set is denoted by a capital letter symbol, and the cardinal number of a set, enclosed in a curly bracket, denotes the number of elements in a finite set.
Given that;
Breed 1 (38, 45, 49, 51, 52)
Breed 2 (35, 36, 40, 44, 50)
Now, comparing them is simpler. You can tell right immediately that they don't quite match and that they do overlap. so C or D cannot be the case.
As they are over a comparable range, I would say B, although the spread is different for both.
To learn more about set theory visit:
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B) what percent of the race distance is spent on land?
(P.s all these questions are from a text book and are question I don't understand, so pleases explain your answer.)
:)
Total triathlon distance →1.5 km + 40km + 10 km = 51.5 km
So 51.5 km represents 100% of distance covered.
The % of each component = (distance of component/Total distance) multiplied by 100% so :
% of swim → (1.5 / 51.5) × 100 → 0.029 × 100 = 2.9%
% of bike ride → (40 / 51.5) × 100 →0.776 × 100 = 77.6%
% of run → (10 / 51.5) × 100 → 0.194 × 100 = 19.4%
Percentage spent on land will be
(40 km bike ride + 10 km run / Total triathlon distance) multiplied by 100%
(50 / 51.5) × 100 → 0.970 ×100 = 97%