Answer:
5 and -4.5
Step-by-step explanation:
Since the / is a division sign, 10/2 divides to 5. -9/2 divides to -4.5.
Answer: 0.63
Step-by-step explanation:
Find the number in the hundredth place
2
and look one place to the right for the rounding digit
8
. Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
Hope this helped! :)
Answer:
Step-by-step explanation:
Area = pi r^2
r = 7 cm
pi = 3.14
Area = 3.14 * 7^2
Area = 3.14 * 7*7
Area = 153.86
Area = 153.9 rounded.
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:
![P(A\cap B)=\dfrac{2}{20},\\P(A)=\dfrac{8}{20},\\P(B|A)=\dfrac{\frac{2}{20}}{\frac{8}{20}} =\dfrac{2}{8}=\dfrac{1}{4} =0.25](https://tex.z-dn.net/?f=P%28A%5Ccap%20B%29%3D%5Cdfrac%7B2%7D%7B20%7D%2C%5C%5CP%28A%29%3D%5Cdfrac%7B8%7D%7B20%7D%2C%5C%5CP%28B%7CA%29%3D%5Cdfrac%7B%5Cfrac%7B2%7D%7B20%7D%7D%7B%5Cfrac%7B8%7D%7B20%7D%7D%20%3D%5Cdfrac%7B2%7D%7B8%7D%3D%5Cdfrac%7B1%7D%7B4%7D%20%3D0.25)
Answer: the height is 12 in this situation.
Step-by-step explanation: PLZ mark brainliest !
Using the formula
V=ABh3
Solving forh
h=3V
AB=3·314
78.5=12