Answer:
Step-by-step explanation:
if 2.5, sqrt(18), and 5 make up the sides of a right triangle, then they must satisfy A^2+B^2=C^2, where C is the longer side (hypotenuse).
In this case, 5 is the greater of the 3, so let's see if it satisfies our equation:
2.5^2+sqrt(18)^2=5^2
-> 6.25+18 = 24.25 =/= 25
-> Therefore the answer is a resounding no.
You have to kind of go backwards on this one. So, he goes down 10 floors to the first so he’s on the 10th, down 7 floors= 3rd floor up 5 floors= 8th floor
Answer:

Step-by-step explanation:
Given
See attachment for illustration
Required
Equation to find x
The relationship between angle
and side lengths x and 10 inches is by tangent formula which is given by:

So, we have:

Make x the subject

Answer:
The distance from the Zoo to the city is 80 km
Step-by-step explanation:
The given information are;
The speed of the tour bus = 78 km/h
The point of passing the tour bus = Half way between the city and the Zoo
The time taken after passing the tour bus when it was still 14 km from the city = 20 minutes = 20/60 hour = 1/3 hour
Therefore, we have that the distance covered by the tour bus in 1/3 hour = Time ×Speed = 1/3×78 = 26 km
The distance remaining for the tour bus to reach the city = 14 km
The total distance from the time of observation of the tour bus = Half the distance from the city to the Zoo
Also, the total distance from the time of observation of the tour bus = 26 km + 14 km = 40 km
∴ 40 km = Half the distance from the city to the Zoo
Which gives;
The distance from the Zoo to the city = 2 × 40 km = 80 km.
Answer:
Step-by-step explanation: