Answer:
5.5 miles
Step-by-step explanation:
The brother walks 3.5 miles in 1 hour. In half and hour, he walks half of 3.5 miles, or 1.75 miles.
The sister runs 7.5 miles in 1 hour. In half an hour, she runs half of 7.5 miles, or 3.75 miles.
Add the two distances:
1.75 miles + 3.75 miles = 5.5 miles
Answer:
the Answer is B.
Step-by-step explanation:
Pythagorean theorem (applicable on right triangles only) says:
Where and are the two legs of the triangle and is the length of the hypotenuse [THE LONGEST SIDE].
We can square each leg on the triangle and take the sum, if that is equal to the square of the longest side, we have a right triangle. Let's check for all of these.
A.
They're not right triangle.
B.
This is a right triangle.
C.
They're not right triangle.
D.
They're not right triangle.
Only B is the right triangle
Answer:
(11x-7)
Step-by-step explanation:
Step-by-step explanation: