Answer:
$39.15
Step-by-step explanation:
87 x .55 = 47.85
87-47.85= 39.15
The tree is 25 feet tall. Given the height of the stick and the shadow it cast, the angle formed by the sun and the stick's height can be obtained by taking the Inverse Tangent of 3/5. This is equal to 30.93. This angle is equal to the angle formed by the sun and the tree's height. Using the tangent formula, Tan (30.93)=tree's shadow (15 ft)/ height of the tree, giving the answer 25 feet.
Answer:
3•10^3 is 3,000, so the answer is 9,000
Answer:
A caucluation he can use is adding, just add 7422 and 5570 and you should get your answer.
Step-by-step explanation:
20x^2+50 = -40x^2+110x [ Taking x as the unknown positive integer ]