Answer:
Hello!
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Peter samples her class by selecting 5 girls and 7 boys. This type of sampling is called?
This type of sampling is called Stratified.
Hope this helped you!
:D
Answer:
Area of semicircular lawn is 9.82 square meter.
Step-by-step explanation:
Given:
Diameter of the semicircle = 5 m
So we will find the radius.
Radius is half of the diameter.
Radius 
We need to find the area of the lawn.
Solution:
Now we know that;
Area of semicircle is half times π times square of the radius.
framing in equation form we get;
Area of semicircular lawn = 
Hence Area of semicircular lawn is 9.82 square meter.
Answer:
Answer: x = 71 degrees. Yes, the ladder meets safety standards
Discussion:
The problem describes a right triangle with hypotenuse 12, the side against the ground is 4, and the angle between those two sides is "x". For this triangle,
cosx = (side adjacent to angle) / hypotenuse
= 4 / 12
= 1/3
To find "x" take the inverse cosine of each side to find that :
x is approximately 70.52 degrees. That's 71 degrees rounded to the nearest degree.
Step-by-step explanation:
HOPE THIS HELPED!
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Proving that EFGH is a square: points E,F,G,H
separate the sides of the square ABCD into two lines. if AE=BF=CG=DH then
AH=DG=EB=FC and it shows that if we connect the points E,F,G,H to each other with line we will have a square
HAE~EBF~FCG~GDH by rule SAS
