Change each mixed number to an improper fraction.Multiply by the reciprocal of the divisor, simplifying if possible.Put answer in lowest terms.Check to be sure the answer makes sense.
Hello :
2x² = 2
x²=1
x²-1=0
(x-1)(x+1) = 0
x-1=0 or x+1=0
x=1 or x= -1...(answer : <span>B. There are two solutions: -1 and 1 )</span>
Answer: 40 degrees
Step-by-step explanation: alternate interior angles are equal.
Answer:
Highest area) Student's t-Distribution with 30 degrees of freedom
Middle) Student's t-Distribution with 50 degrees of freedom
Lowest are) Standard deviation distribution
Step-by-step explanation:
Knowing that higher area of the tails correspond to higher dispersion of the t- distribution, and the following properties of t-distribution:
- when the degrees of freedom increase , the dispersion diminishes
- when the degrees of freedom goes to ∞ , t- distribution approaches the standard normal distribution ( thus the z-curve is known as t-curve with df=∞ )
the correct answer is
Tail area : standard deviation < 50 df < 30 df
Answer:
Area:
Step-by-step explanation:
Area of the blue area:
Perimeter of blue area:unsure as no numbers are given for the slanted side if the triangle.