Answer:
0.25
Step-by-step explanation:
complete question:
Bart found 20 quadrilaterals in his classroom. He made a Venn diagram using the properties of the quadrilaterals, comparing those with four equal side lengths (E) and those with four right angles (R).
See attachment for the figure.
SOLUTION:
At Venn diagram there are 4 parts (20 pieces):
-> blue colored - quadrilaterals having four equal side lengths (3 pieces)
-> orange colored - quadrilaterals with four right angles (6 pieces)
-> blue and orange colored - quadrilaterals with four right angles and with four equal side lengths (2 pieces)
-> white colored - quadrilaterals without previous two properties (9 pieces).
Considering events:
A -> a randomly chosen quadrilateral has four right angles;
B -> a randomly chosen quadrilateral has four equal side lengths;
By using formula : 
in order to find probability that a randomly selected quadrilateral with 4 right angles also has four equal side lengths:
You have to use PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction) to solve this,
Because you don't have any parenthesis or exponents you start with Multiplication/Division. This means you do 4*3 to get 26+5-12
Then, you move to Addition/Subtraction in which you complete left to right, So you do 26+5 to get 31-12
Finally you subtract 31-12 to get 19
Answer:
=5
Step-by-step explanation:
perimeter= 2(L)+2(W)
11 =2(1/2)+2W
11=1+2W
11-1=2W
10=2W
Both sides divided by 2
therefore The width is 5
Answer:
∠RQS = 156
Step-by-step explanation:
m∠TQS = 24
∠TQS and ∠RQS are linear pair. Linear pair are two adjacent angles and their sum is 180
∠TQS + ∠RQS = 180
24 + ∠RQS = 180
∠RQS = 180 - 24
∠RQS = 156
Answer:
2 61/64 m2
Step-by-step explanation:
V = length * width * height
2.25 * 7/8 * 1.50
V = 2 61/64 m2
* = multiplication symbol
V = Volume
