The Triangle will look in this way (Attached image)-
<h3>How do you draw a 30 degree angle with a protractor?</h3>
Step 1: Draw a line segment OQ.
Step 2: Place the center tip of the protractor at point O such that the protractor perfectly aligns with line AQ.
Step 3: Start from 'Q' on the protractor in the anti - clockwise direction and stop at 30. Mark it as point 'P'. If point 'Q' lies to the right of 'O', then start measuring clockwise and stop at 30.
Step 4: Now, place the protector at point Q, mark the point 'P' at 90, such that ∠OQP = 90.
Step 5: Join point 'P' with 'O'. ∠QOP=30° is the required 30 degree angle.
To learn more about triangles from the given link
brainly.com/question/9912231
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The number of unit squares with a side length of 1/10 foot that Rhys uses to tile the rectangle is 24 units
<h3>How to calculate the area of plane shapes?</h3>
A square is a plane shape with 4 sides
The formula for calculating the area of the square is expressed as:
A = l^2
Given
side length of a square = 1/10 foot
A = (1/10)² = 1/100 = 0.01 square foot
<u>Determine the area of the rectangle</u>
Area = length * width
Area = 3/10 * 4/5
Area = 12/50 = 6/25
Area = 0.24 square foot
<u>Take the ratio of both areas</u>
Ratio = 0.24/0.01
Ratio = 24 units
Hence the number of unit squares with a side length of 1/10 foot that Rhys uses to tile the rectangle is 24 units
Learn more on area of plane shapes here: brainly.com/question/2644832
Answer:
To answer you question, we need the confidence internals formula, μ±Zc*(σ/); N is the 20 psychology students, 0.5 the desviation standar and 4.3 is the medium based on national data, every fact in years.
Step-by-step explanation:
You need to consult the Zc value, you can find this table attached in this question; for 95%, we have a Zc value of 1.96.
Next step replace values: 4.3±1.96*(0.5/) = 4.3±0.22 (rounding the result)
So, the confidence interval are:
4.08cm≤X≤4.52cm
Let the number of females = x. This means the number of males in the class is x+15.
Put the two together to get x + (x+15) = 31. Simplify to 2x + 15 = 31. Subtract 15 on both sides to get 2x = 16. Divide by 2 on both sides to isolate the x to get x = 8.
There are 8 females in the class meaning there are 23 males in the class.