Answer:
120 cm²
Step-by-step explanation:
From the question;
- Length is 12 cm
- Width is 10 cm
We are required to determine the area of the cross section;
- Note that the cross section is the plane of a solid that remains constant through the solid.
- In this case, the cross section is a rectangle whose dimensions are 12 cm by 10 cm.
But Area of a rectangle = Length × Width
Therefore;
Area of cross section = 12 cm × 10 cm
= 120 cm²
Thus, area of the cross section is 120 cm²
12 girls - 48%
48% ÷ 12 = 0.25
100% - 48% = 52%
1% - 0.25
52 % = 0.25 × 52 = 13 boys
Answer:
1.0738 x 10^-2
Step-by-step explanation:
Answer:
a 0.20
Step-by-step explanation:
The standard error of the mean can be calculated using the formula
SE=
where
- s is the population standard deviation of the time spend on the computer (1.4 hours)
- N is the sample size of the data collected. (49)
Using the numbers SE=
=0.20
An nth degree<span> polynomial can have as many as n real roots.</span>
