Aladder is leaning up against a house at a 49∘ angle. jim, who is 5 feet tall, is standing upright on the ladder forming angle b. he is also holding a board which rests 2 feet below him on the ladder. according to the triangle in the figure and the given information, find the shortest length of the board needed. (round your final answer to the nearest tenth place.)

6.5 feet

Step-by-step explanation:

Based on the Cosines Law, we have:

If we isolate b (which is our x in this problem), we have

We have

a: 2

c: 5

B: 131 (since it's the complement of the 49 degrees angle: 180 - 49).

So, we plug these numbers in the formula....

We round it up to the tenth of the unit... to get 6.5

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: