57. If you draw a diagram and make a right traveler with the Jacques, the base of the cliff, and the top of the cliff, it should be obvious that tan(35 degrees) = (cliff height)/1200m. Solving, cliff height = 1200 * tan(35 deg) = 840 meters.
59.
Original price = 480
After 20% off, price = 480 - 0.20 * 480 = 384
After 7.5% tax, price = 384 + 0.075 * 384 = 412.80, which is the total desired.
-12.5 is the answer. Multiply the 3 for the time from 7 to 10 by -2.5 to get -7.5. add -7.5 plus -5 to get -12.5
Here you go. look for the simples method of elimination and solve.
The vertices of the attached triangle are
A(9, 0)
B(0, 4)
O(0, 0)The leg lengths of this triangle are 9 and 4 units. Its area can be computed using the formula for the area of a triangle.
A = (1/2)(9)(4) = 18 . . . . square units
Since the result of this calculation is 18 square units, we know it has the correct area.
_____
The area measuring tool in the drawing app also shows the area to be 18.
Answer:
2.5
Step-by-step explanation:
is your answer