I would think the correct answer is -->
A. Length of a person's foot
<span>B. A five-foot long branch from a tree </span>
<span>C. Highway mile marker </span>
<span>D. A yardstick</span>
Answer:
B) x = (-5 + √10)/3 and (-5 - √10)/3 is the answer.
Step-by-step explanation:
3x² + 10x + 5 = 0
a = 3
b = 10
c = 5
Finding the Discriminant (D),
D = b² - 4ac
D = 10² - 4 × 3 × 5
D = 100 - 60
D = 40
√D = 2√10
Using quadratic formula,
x = (-b ± √D)/2a
x = (-b + √D)/2a
x = (-10 + 2√10)/2 × 3
Taking out the common factor 2,
x = (-5 + √10)/3
Similarly,
x = (-b - √D)/2a
x = (-10 - 2√10)/2 × 3
x = (-5 - √10)/3
Answer: This means it would take 4 seconds for the leaf to fall 1 foot.
Step-by-step explanation: The leaf starts at 12 feet above the ground. This eliminates the first and third graph, leaving the second and last. The leaf falls at 0.25 ft/sec. This means it would take 4 seconds for the leaf to fall 1 foot.
Answer:
hi
Step-by-step explanation:
The questions 1, 2, and 5 are already matched in correct order.
<u>Step-by-step explanation:</u>
1. <u>Meter</u> - standard metric unit of length.
2. <u>hypothesis</u> - a proposed explanation for a scientific problem.
3. <u>mass</u> - amount of matter in an object.
4. <u>liter</u> - standard unit of volume.
5. <u>control</u> - a quantity in an experiment that remains unchanged or constant.
6. <u>meniscus</u> - the curved top surface of a liquid column.
