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jeka57 [31]
3 years ago
5

Suzl starts her hike at 300 feet below sea level. When she reaches the end of the

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

For all the other viewers of this question, the change was -403 feet or you could say 403 feet i guess but the answer is -403 feet

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A.The observation deck of tall skyscraper 370 m above the street. Determine the time required for a penny to free fall from the
Ainat [17]

Answer:

8.68 seconds

Step-by-step explanation:

Given:

Height of the deck above the street, s = 370 m

Since the condition is of free falling

thus,

initial speed, u = 0

Acceleration of the penny = acceleration due to gravity, g = 9.81 m/s²

Now,

from Newton's equation of motion, we have

s=ut+\frac{1}{2}at^2

here,

s is the distance

a is the acceleration

t is the time

on substituting the values, we get

370=0\times t+\frac{1}{2}\times9.81\times t^2

or

t² = 75.433

or

t = 8.68 seconds

8 0
3 years ago
The lines graphed below are perpendicular. The slope of the redline is -2. What is the slope of the green line
attashe74 [19]

Answer:

It would be undefined if the line is vertical.

Step-by-step explanation:

6 0
3 years ago
Solve for x.<br> 9(x + 2) = x - 6
jeyben [28]

Answer:

9(x + 2) = x - 6

9x+18=x-6

9x-x=-18-6

8x=-24

x=-24/8=-3 is your answer

4 0
3 years ago
A middle school took all of its 6th grade students on a field trip to see a ballet at a theater that has 2900 seats. The student
lesantik [10]

Answer:

34%

Step-by-step explanation:

To find what percent a part is of the whole, divide the part by the whole and multiply by 100%.

\dfrac{986}{2900} \times 100\% = 0.34 \times 100\% = 34\%

5 0
3 years ago
Read 2 more answers
What is the factored form of the expression 9x2 + 6x + 1?
DanielleElmas [232]

Answer:

(3x + 1)²

Step-by-step explanation:

Given

9x² + 6x + 1 ← is a perfect square of the form

(ax + b)² = a²x² + 2abx +  b²

Compare like terms to find a and b

a²x² = 9x² ⇒ a² = 9 ⇒ a = \sqrt{9} = 3

b² = 1 ⇒ b = \sqrt{1} = 1

and 2ab = 2 × 3 × 1 = 6

Thus

9x² + 6x + 1 = (3x + 1)²

4 0
3 years ago
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