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olga55 [171]
3 years ago
15

esterday, the snow was 2 feet deep in front of Archie’s house. Today, the snow depth dropped to 1.6 feet because the day is so w

arm. What is the percent change in the depth of the snow?
Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0
Eighty percent (80%) depth
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A particle moves along the curve y = 5x^2 – 1 in such a way that the y value is decreasing at the rate of 2 units per second. At
Shtirlitz [24]

Answer:

The correct option is;

Increasing one fifth unit/sec

Step-by-step explanation:

The equation that gives the curve of the particle of the particle is y = 5·x² - 1

The rate of decrease of the y value dy/dt = 2 units per second

We have;

dy/dx = dy/dt × dt/dx

dy/dx = 10·x

dy/dt = 2 units/sec

dt/dx = (dy/dx)/(dy/dt)

dx/dt = dy/dt/(dy/dx) = 2 unit/sec/(10·x)

When x = 1

dx/dt = 2/(10·x) = 2 unit/sec/(10 × 1) = 1/5 unit/sec

dx/dt = 1/5 unit/sec

Therefore, x is increasing one fifth unit/sec.

8 0
3 years ago
22 - [1/2 • (5 x 4) + 4]​
Montano1993 [528]
8 because you do the multiplication which is 20 and multiply 20 by 1/2 which is 10 then add 4 which is 14. then 22-14 is 8.
3 0
3 years ago
Need help with this
Ganezh [65]

average = 85 MPH and traveled for 6 hours


total = 85 x 6 = 510 miles


answer

510 miles from Orlando to Augusta

4 0
3 years ago
Solve for x: 2 over 5 (x − 4) = 2x.<br><br> −8<br> negative 1 over 2<br> 1<br> −1
vlabodo [156]
2/5(x - 4) = 2x
2/5x - 8/5 = 2x....multiply everything by 5
2x - 8 = 10x
-8 = 10x - 2x
-8 = 8x
-8/8 = x
-1 = x <===
5 0
3 years ago
Brittany bought three movies from the library which movie is almost 3 hours long about how many hours of movies does Britney hav
Anton [14]
Britney has to watch 90 hours of movies
5 0
3 years ago
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