Answer:
14.4 miles
Step-by-step explanation:
Given that :
Distance moved North = 12 miles
Distance moved West = 8 miles
Shortest distance to reach starting point :
Let shortest distance to reach starting point = d miles
Using the relation :
Longest side of a right angled triangle:
d = sqrt(8^2 + 12^2)
d = sqrt(64 + 144)
d = sqrt(208)
d = 14.422205
d = 14.4 miles (nearest tenth of a mile)
Answer:
Step-by-step explanation:
GIVEN: In the school year in country A, there were
foreign students from country B. This number is
more than the number of students from country C.
TO FIND: How many foreign students were from country C.
SOLUTION:
Total foreign students from country B
let the foreign students from country C be
As the students from country B is more than the country C
Students from country B
Hence the number of students from country C are
Answer:
There are different ways to choose 4 screws such that 2 have a Phillips head and 2 have a slotted head.
Step-by-step explanation:
If 4 screws must be chosen so that 2 have a Phillips head and 2 have a slotted head, then you have to choose 2 screws with a Phillips head from 4 screws with a Phillips head and 2 screws with a slotted head from 4 screws with a slotted head.
You can choose 2 screws with a Phillips head from 4 screws with a Phillips head in
different ways.
You can choose 2 screws with a slotted head from 4 screws with a slotted head in
different ways.
In total there are different ways to choose 4 screws such that 2 have a Phillips head and 2 have a slotted head.