1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
baherus [9]
3 years ago
14

The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain riv

er normally flows at a speed of 3 miles per hour. What must its speed be in order to transport particles that are 200 times as massive as usual? Round your answer to the nearest hundredth.
The speed of the river must be about BLANK miles per hour
Mathematics
1 answer:
katrin2010 [14]3 years ago
8 0

Answer:

7.25

Step-by-step explanation:

200m/s^6 = m/3^6

s^6 = 200*3^6

s = 3*200^(1/6) = 7.25 mi/hr

Hope I helped!


You might be interested in
HELPPP ASAP PLEASEEE THANK YOU
ahrayia [7]

Step 1: Find the slope

Slope formula = (y2 - y1) / (x2 - x1)

---You can choose any two points when finding the slope!

Point 1 = (-2,-10)

Point 2 = (-1,-3)

Slope = (-3 - - 10) / (-1 - - 2)

Slope = 7 / 1

Slope = 7

Step 2: Find the y-intercept

Now that we have the slope, we'll plug that and one point into slope-intercept form. Then, we'll solve for b.

Slope-Intercept Form: y = mx + b

---m is the slope, b is the y-intercept

Point = (-1, -3)

Slope = 7

-3 = 7(-1) + b

-3 = -7 + b

b = 4

Step 3: Put it all together

Now that we know the slope and y-intercept, all that's left to do is plug them into slope-intercept form.

Slope-Intercept Form: y = mx + b

Slope = 7

Y-Intercept = 4

Line: y = 7x + 4

Correct Answer: A

Hope this helps!

5 0
2 years ago
Consider the universal relation r = {a, b, c, d, e, f, g, h, i, j} and the set of functional dependencies f = { {a, b } → {c}, {
nekit [7.7K]

Answer:

relation of FDs are {a, b, d, h}. From these all but {h}

seem plausibly part of keys. Calculating the closures of likely candidates gives:

{a, b} + = {a b, c, i}

{b, d} + = {b, d, e, f}

{a, d} + = {a, d, g, h, i, j}

{a, b, d} + = {a, b, c, d, e, f, g, h, i, j}  

decompose r into 2nf and then 3nf relations shown in attachment.                    

Step- by-Step Explanation

Explanation is given in the attachment.

8 0
3 years ago
In the graph above, the coordinates of the vertices of QPR are Q(3, 0), P(5, 6), and R(7, 0). If AQPR is reflected across
ozzi

Answer:

D. (7, 0)

Step-by-step explanation:

The rule for a reflection over the y-axis is (x, y) → (x, -y)

This means that the x-values stay the same while the y-values change.

Q(x, y) → (x, -y)

Q(3, 0) → (3, 0)

Q'(3, 0)

P(x, y) → (x, -y)

P(5, 6) → (5, -6)

P'(5, -6)

R(x, y) → (x, -y)

R(7, 0) → (7, 0)

R'(7, 0)

Therefore, the correct answer is D.

Hope this helps!

7 0
2 years ago
PLEASE ANSWER THIS IS URGENT
mr Goodwill [35]

Answer:

i think its 48 but dont trust me im just doing this for points hope you get a good grade on it

Step-by-step explanation:

6 0
3 years ago
HELP ME PLS NEED IT QOUIKC
nexus9112 [7]

Answer: 7.08 cm2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 192 rounded to the one thousands place
    13·1 answer
  • It’s music please someone help me
    7·1 answer
  • Heather writes the equations below to represent two lines drawn on the coordinate plane. –6x + 18y = 0 4x – 12y = 20 After apply
    5·2 answers
  • What is coterminal angle
    9·2 answers
  • Write an equation of a circle given the center (-4,4) and radius r=5
    10·1 answer
  • Help Me please!!!!! Rn
    11·2 answers
  • 4q^2 - (qr + 25) if q = 6 and r = 19
    8·1 answer
  • Can anyone explain how to do this? The answer isn't as important as the explanation. My teacher gave us a video w/o an example l
    9·1 answer
  • What is the number of 20% of 40
    7·1 answer
  • I need an answer , i've put the pic down
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!