Answer:
a=-1/4z
Step-by-step explanation:
<3
3554 by 10 = 355.4
4678 by 40 = 116.95
Answer: 37
Step-by-step explanation: To find 25% of 148, first write 25% as a decimal by moving the decimal point two places to the left to get .25 which is the decimal equivalent to 25%.
Next, the word "of" means multiply so we will need to multiply.
(.25) (148) = 37
Therefore, 37 is 25% of 148.
Complete question :
The latter is leaning against the building so that the distance from the ground to the top of the ladder is 9 feet less than the length of the ladder finally put the ladder in the distance from the bottom of the ladder to the building 15 feet. Find length of the ladder.
Answer:
17
Step-by-step explanation:
From Pythagoras :
Hypotenus = sqrt(opposite² + adjacent²)
From the diagram
l = sqrt((l-9)² + 15²)
l² = (l² - 18x + 81 + 225)
Square both sides
l² = l² - 18x + 306
l² - l² = 306 - 18x
18l = 306
l = 306/18
l = 17
Two RIGHT angles total 180°.
Acute angles are always under 90°
