<h3>(x + 7)² = x² + 14x + 49</h3>
The true statement that show the closure property of multiplication :
<h3>a. x² + 14x + 49 is a polynomial</h3>
<h3>Further explanation</h3>
<em>If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then</em>
Let us now tackle the problem!
This problem is about Polynomial.
is a polynomial.
is polynomial.
It demonstrates the closure property of multiplication.
<h3>Conclusion:</h3>
<em>The true statement that show how the product of (x + 7)² demonstrates the closure property of multiplication:</em>
<h3>a. x² + 14x + 49 is a polynomial</h3>
<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: High School
Subject: Mathematics
Chapter: Polynomial
Keywords: Quadratic , Equation , Discriminant , Real , Number
#LearnWithBrainly
The answer should be A cause if hku multiply both sides by s you get x by itself. Thus x=zs
Okay I can’t see the pic…
Answer:
D. The 95% confidence interval is (3.4102, 4.1898). We are 95% confident that the true population mean potassium level for professional wrestlers will be between 3.4102 millimoles per liter and 4.1898 millimoles per liter.
Step-by-step explanation:
Hello!
The variable if interest is X: potassium level of a professional wrestler (mmol/L)
A sample of n= 52 professional wrestlers was taken and a sample mean of X[bar]= 3.8 mmol/L and a sample standard deviation of S= 1.4 mmol/L
You have to estimate the population average potassium level using a 95% confidence interval. Assuming that the variable has a normal distribution, and since the population variance is unknown, I'll use a student t to construct the interval:
[X[bar] ± * ]
[3.8±2.008*]
[3.4102; 4.1898]
With a 95% confidence level you'd expect that the interval [3.4102; 4.1898]mmol/L will contain the average potassium level of professional wrestlers.
I hope this helps!
15 is 37.5% of 40
<em>Equation: Y = P% * X</em>
<em />
P% = Y/X
P% = 15/40
p = 0.375
0.375 × 100 = 37.5%