Answer:
- Area of section is 981 square feet
Step-by-step explanation:
<h3>Given trapezoid with:</h3>
- Bases 57 feet and 52 feet;
- Height 18 feet.
<h3>To find</h3>
<h3>Solution</h3>
Equation of area:
Substitute values and calculate:
- A = (57 + 52)*18/2 = 109*9 = 981 ft²
Answer: B) 0.28
Step-by-step explanation:
Given that:
Lean/Healthy Overweight/ ObeseSelf Esteem Low 18 32 High 32 18
Overweight/Obese Lean/Healthy Total
Low 32 18 50
High 18 32 50
Total 50 50 100
the phi correlation coefficient is defined by Ф = √x²/n
where n = 100 ( total number of response )
x² = [(32×32 - 18×18)² × 100] / [50 × 50 × 50 × 50]
Ф = √ [(700)² x 100) / (50)⁴ × 100
Ф = 700 / 50²
Ф = 0.28
Therefore option B) is the correct answer
Since it says the sum of any number not one in specific then the value will be x, plus the sum of 7,
Step-by-step explanation:
E = m/2g(v²-u²)
2g×E = 2g×m/2g(v²-u²)
2Eg = m(v²-u²)
2Eg = mv² - mu²
mu²= mv² -2Eg
mu²/m = mv² -2Eg /m
u²= v² -2Eg
u = √v²-√2Eg
