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Ugo [173]
2 years ago
7

(a/b)^2– c/a—b Evaluate each expression if a = 8, b = 4, and c = 16

Mathematics
1 answer:
Nadya [2.5K]2 years ago
3 0

Answer:

-2

Step-by-step explanation:

\left(\frac{8}{4} \right)^2-\frac{16}{8}-4 \\ \\ =2^2-2-4 \\ \\ =4-2-4 \\ \\ =2-4 \\ \\ =-2

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John invests $5625 into a savings account with a fixed annual interest rate of 7% compounded continuously. How many years will i
mihalych1998 [28]

Answer:

Step-by-step explanation:

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8 0
3 years ago
A boulder falls off the top of a cliff during a storm. The cliff is 90 feet high.
andreev551 [17]

Answer:

It will take the boulder approximately 4.28 seconds to hit the road

Step-by-step explanation:

The given height of the cliff from which the boulder falls, h = 90 feet

The equation that can be used to find the time it takes the boulder to fall is h = u·t + (1/2)·g·t²

Where;

h = The height of the cliff = 90 ft.

u = The initial velocity of the boulder = 0 m/s (The boulder is assumed to be at rest when it falls)

g - The acceleration due to gravity ≈ 9.81 m/s²

t = How long it will take for the boulder to hit the road below

Plugging in the values gives;

90 = 0 × t + (1/2)×9.81×t² = 4.905·t²

∴ t = √(90/4.905) ≈ 4.28

The time it takes the boulder to hit the road, t ≈ 4.28 seconds.

7 0
3 years ago
Correctly describe the slope of the graph of 2x + 5y = 6?
USPshnik [31]

Answer:

2x + 5y = 6z

ok

6 0
3 years ago
Which of the following is closest to 149/1502?<br> a) 0.012<br> b) 0.77<br> c) 0.103<br> d) 0.151
irinina [24]
149/1502≈0.1, which is C. Hope it help!
3 0
4 years ago
The diagonals form four congruent arcs. true or false?
Yuliya22 [10]

Answer:

true

Step-by-step explanation:

6 0
3 years ago
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