Answer:
Tested outcome (difference) is significant.
Step-by-step explanation:
The significance level of 5% (more typically referred to as 95%) corresponds to saying that if an observation at hand is (only) 5% or less likely to have been generated by chance, then it will be accepted as significant. In this example, the p-level (which is the actual probability of the observation being generated by chance) is lower than 5% (0.0421<0.05) and therefore a conclusion can be made that the observed outcome is significant.
An example of an outcome being significant could a drug improving patients's condition in a clinical study.
See attachment for math work and answer.
Y=2x+5
sub 2x+5 for y in other equaiton
10x+3(2x+5)=19
distribute
10x+6x+15=19
minus 15 from both sides
16x=4
divide both sides by 16
x=1/4
sub back
y=2x+5
y=2(1/4)+5
y=1/2+5
y=5.5=11/2
solution is (1/4,11/2) or in decimal, (0.25,5.5)
Question: Simplify: (3x^3)^2
Step by Step:
STEP 1 : Equation at the end of step 1
(3x³)²
STEP2:
2.1 x³ raised to the 2 nd power = x( 3 * 2 ) = x⁶
Answer: 3²x⁶
Hope it Helps.