Sense we know it is a right angle, we can set the equation to equal 90
3x-9 + x+7 = 90
Combine like terms
4x - 2 = 90
Add 2 to each side
4x = 92
Divide by 4 on each side
x=23
Answer:
Her new position is 37 feet below the cave entrance
Step-by-step explanation:
Let us solve the question
∵ The cave entrance is the zero position
∵ Anna is in 42 feet below the cave entrance
→ Below zero means negative
∴ Anna is in -42 feet
∵ She descends 10 feet
→ Descend means negative
∴ She is in -42 + -10 = -52 feet
∵ She ascends 15 feet
→ Ascend means positive
∴ She is in -52 + 15 = -37 feet
→ -37 means she is in below the cave entrance by 37 feet
∴ Her new position is 37 feet below the cave entrance
Answer:
D
Step-by-step explanation:
if cosec is 13/5 then sin is 5/13
Answer:
total cost = 556.39
Step-by-step explanation:
Lets calculate the shipping and handling costs
s&h = cost * shipping and handling rate
The rate is 29% = .29 in decimal form
= 431.31* .29
= 125.0799
Rounding to the nearest cent
= 125.08
The total cost is the cost of the item plus the shipping and handling
total cost = 431.31+125.08
total cost = 556.39