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tangare [24]
3 years ago
14

If v varies directly as w and v = 8 when w=1/2 find the equation that relate v and w

Mathematics
2 answers:
ruslelena [56]3 years ago
6 0

Answer:

v=16w

Step-by-step explanation:

We are given that v varies directly as w, so

v=k⋅w

for some constant, k.

To determine the value of k, substitute the known values, v=8 when w=1/2, to find that

8=k⋅12

Multiplying by 2 gives k=16, so an equation that relates v and w is

v=16w

garri49 [273]3 years ago
5 0

Answer:

v=kw. 8=k1/2

Step-by-step explanation:

Okay, so here's the equation. v=kw. Varies directly means if v rises, then w rises. If v decreases, then w will decrease. Let me know if that helps! (In case you need it, k=16.)

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The figure undergoes a 90° rotation counterclockwise, followed by a reflection across a vertical line.
ollegr [7]

I am almost confident it is B

8 0
3 years ago
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SO anyways :))))
artcher [175]

Answer:

1 / 8², B

Step-by-step explanation:

8 / 8³

8³ = 8*8*8

So, the equation can also be written as:

8 / 8*8*8

divide the numerator and denominator by 8.

1 / 8*8

This is equal to:

1 / 8²

The answer is B.

7 0
2 years ago
In 2012, the population of a city was 6.29 million. The exponential growth rate was
RoseWind [281]

9514 1404 393

Answer:

  a) P(t) = 6.29e^(0.0241t)

  b) P(6) ≈ 7.3 million

  c) 10 years

  d) 28.8 years

Step-by-step explanation:

a) You have written the equation.

  P(t) = 6.29·e^(0.0241·t)

__

b) 2018 is 6 years after 2012.

  P(6) = 6.29·e^(0.0241·6) ≈ 7.2686 ≈ 7.3 . . . million

__

c) We want t for ...

  8 = 6.29·e^(0.0241t)

  ln(8/6.29) = 0.0241t

  t = ln(8/6.29)/0.0241 ≈ 9.978 ≈ 10.0 . . . years

__

d) Along the same lines as the calculation in part (c), doubling time is ...

  t = ln(2)/0.0241 ≈ 28.7613 ≈ 28.8 . . . years

4 0
2 years ago
fritz wrote a set of related facts for the array below.which equation is not intended in the set of related facts for this array
oksian1 [2.3K]
Do you have the equation choices?
7 0
3 years ago
REALLY NEED MATH MIDPOINT STUFF HELP
elena-14-01-66 [18.8K]
The answer to this question would be: (6.5 , 8.5)

To answer this question, you need to determine the x and y distance of both point. From A point the distance would be: 
X distance= 14-4= 10
Y distance= 10-8= 2

Making it into 1:3 ratio means that dividing the line into 4 parts then take 1 part from the point A, or 3 part from point B. From A point the distance would be 1/4 total distance
The location would be:
X= 4 + (10*1/4)= 6.5
Y= 8+ (2*1/4)= 8.5
(6.5 , 8.5)
4 0
3 years ago
Read 2 more answers
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