Answer:
17
Step-by-step explanation:
Answer:
2.5%
Step-by-step explanation:
first things first youre gonna wanna BRING OUT THAT AWESOME CALCULATOR ok now:
enter 1 and then divide by sign, and then 40 and press Enter/equal sign.
we get:
0.025
BUT WAIT! we must multiply 0.025 by 100
we get 2.5%
Answer:
The answer is D.
Step-by-step explanation:
The answer is D because the total number of people who chose flight was 37. Researchers said they surveyed, 100 people in total so 37 out of those 100 people choose flight, hence the answer being D.
RX is + XS is the hypotenuse of the right triangle RTS, then:
(RX + XS)^2 = (RT)^2 + (ST)^2
=> (4+9)^2 = (RT)^2 + (ST)^2
=> 13^2 = (RT)^2 + (ST)^2 .....equation (1)
Triangle RTX and XST are also right triangles.
RT is the hypotenuse of RTX and ST is the hypotenuse os SXT.
Then, (RT)^2 - (RX)2 = (TX)^2 and (ST)^2 - (SX)^2 = (TX)^2
=> (RT)^2 - (RX)^2 = (ST)^2 - (SX)^2
=> (RT)^2 - (ST)^2 = (RX)^2 -(SX)^2
=> (RT)^2 - (ST)^2 = 4^2 - 9^2 = 16 - 81 = - 65
=> (ST)^2 - (RT)^2 = 65 ..........equation (2)
Now use equations (1) and (2)
13^2 = (RT)^2 + (ST)^2
65 = (ST)^2 - (RT)^2
Add the two equations:
13^2 + 65 = 2(ST)^2
2(ST)^2 =178
(ST)^2 = 234/2 = 117
Now use (ST)^2 - (SX)^2 = (TX)^2
=> (TX)^2 = 117 - 81 = 36
=> (TX) = √36 = 6
Answer: 6