Answer:
AB = 
Step-by-step explanation:
calculate the distance using the distance formula
d = 
with (x₁, y₁ ) = B (3, 2 ) and (x₂, y₂ ) = A (7, 4 )
AB = 
= 
= 
=
≈ 4.47 ( to 2 dec. places )
Work backwards..
30 helmet + 30 left = 60$
60 + 15 charity = 75$
75 + 25 music = 100$
There are 56 dogs
2/5 = x/140
140 x 2 = 5 x x
280 = 5x
56 = x
Answer:
2
3
1
4
Step-by-step explanation:
Angles that add up to 90 are Complementary angles.
Two angles that have a common vertex and a common side but do not overlap are Adjacent angles.
Angles that are opposite each other and have the same measurment are vertical angles.
Angles that add up to 180 are Supplementary angles.
Hope this helps!! :D
<h3>
Answer: Approximately 0.677</h3>
Explanation:
Add up the values in the plan A column. There are 10+12+16 = 38 people who prefer plan A.
Add up the values in the "40-49" row to find that 16+8 = 24 people are ages 40 to 49.
We have 38+24-16 = 46 people who either prefer plan A, are aged 40-49, or fit both descriptions. I subtracted off 16 because those 16 people were counted twice when adding 38 and 24.
An alternative way to get this value of 46 is to add up everything that is in column1 or row 3 (or both). So that would get 10+12+16+8 = 46.
Now add up everything in the table to find out how many people were surveyed total. That would be 10+7+12+15+16+8 = 68 people overall.
The probability of someone liking plan A, or being age 40-49, or both is 46/68 = 0.6765 approximately. Rounding to 3 decimal places gives 0.677
