Answer:
is this is ur online test ????
Answer: Simply - 5
Step-by-step explanation: Let's solve your equation step-by-step.
25+x2+10x=0
Step 1: Simplify both sides of the equation.
x2+10x+25=0
Step 2: Factor left side of equation.
(x+5)(x+5)=0
Step 3: Set factors equal to 0.
x+5=0 or x+5=0
x=−5
Answer:
-6 = x / 3 -Multiply both sides by 3
-6 * 3 = x / 3 * 3
-18 = x
Now, you can check your answer:
-6 = -18 / 3
-6 = -6
Hope this helps!
Answer:
The statement that cushion A is twice as popular as cushion B cannot be verified
Step-by-step explanation:
From the question we are told that:
Sample size n=38
Type a size A 
Type a size B
Generally the probability of choosing cushion A P(a) is mathematically given by


Generally the equation for A to be twice as popular as B is mathematically given by

Therefore Hypothesis

Generally the equation normal approx of p value is mathematically given by



Therefore from distribution table


Therefore there is no sufficient evidence to disagree with the Null hypothesis 
Therefore the statement that cushion A is twice as popular as cushion B cannot be verified