To find the area of the triangle, you multiply the two sides together, and divide it by two. To find the area of the rectangle, just multiply the two sides given. Add the two products together, and you get your answer!
Answer:
Step-by-step explanation:
a)
Number of sample, n = 100
p = 0.78
q = 1 - p = 1 - 0.78
q = 0.22
For a confidence level of 90%, the corresponding z value is 1.645.
The formula for determining the error bound for the proportion is
z × √pq/n
= 1.645 ×√(0.78 × 0.22)/100
= 1.645 × 0.0414 = 0.068
The upper boundary of the population proportion is
0.78 + 0.068 = 0.85
The lower boundary of the population proportion is
0.78 - 0.068 = 0.71
b) For a confidence level of 95%, the corresponding z value is 1.96.
Therefore,
= 1.96 ×√(0.78 × 0.22)/100
= 1.96 × 0.0414 = 0.081
The upper boundary of the population proportion is
0.78 + 0.081 = 0.86
The lower boundary of the population proportion is
0.78 - 0.081 = 0.7
The sum of all the angles made by a straight line is 180°. Then the value of x is 61°.
<h3>What is an angle?</h3>
Angle is the space between the line or the surface that meets. And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.
The angles are shown on the diagram.
The angles are 52° and 67°. And let the other angle be x.
We know that the sum of all the angles made by a straight line is 180°.
Then we have
x + 52° + 67° = 180°
On simplifying, we have the value of x.
x = 61°
Thus, the value of x is 61°.
More about the angles link is given below.
brainly.com/question/15767203
Answer:
30 feet
Step-by-step explanation:
Interesting question.
- 1 cubit = 18 inches
- 20 cubits = x
- 1/20 = 18/x Cross multiply
- x = 20 * 18
- x = 360 inches.
The maximum height is 360 inches.
- 1 foot = 12 inches
- x feet = 360 inches Cross multiply
- 12x = 360 * 1
- 12x/12 = 360/12
- x = 30
The maximum height reached was 30 feet.
