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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 mean shoe size of the students in a math class is 7.5. Most of the shoe sizes fall within 1 standard deviation, or between a
Zarrin [17]

Answer:

1.5


Step-by-step explanation:

The mean is the Middle number.

1 standard deviation in both sides of 7.5 makes it between 6 and 9.

<u>What is the </u><u>"common difference"</u><u> in 6 to 7.5 and from 7.5 to 9?</u>

7.5-6=1.5

and

9-7.5=1.5


So, we would say the standard deviation is 1.5

Answer choice A is right.

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2 years ago
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Kathy has savings a hundred thousand if she invested 100,000 in a saving fund thats adds 5% each year about how much will her sa
jok3333 [9.3K]

Answer:200,000

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If it increases 5% every year in 20 years it will Have increased 100% therefore the number would have doubled

5 0
2 years ago
This is hard i need help
taurus [48]

Answer:

a. 6  b. -2

Step-by-step explanation:

a. x^3 = 216

x = ³√216

x = 6

b. -n^3/4 = 2

-n^3 = 8

-n = ³√8

- n = 2

n = -2

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Can you show me the graph for f(x) = 1/2 x + 2
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Here is the graph with your line in it.

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C bisects AB. If AC = 8x - 1 and BC = 4x + 19, what is the length of AB?
tensa zangetsu [6.8K]

The length of AB is 78 units.

<h3>What is a Line Segment?</h3>

A line segment is defined as a measured path between two places. Line segments can make up any polygon's sides because they have a set length.

The figure is given below shows a line segment AB , where the length of line segment AB refers to the distance between its endpoints, A and B.

Given that C is the midpoint of AB

AC = 8x - 1 and BC = 4x + 19,

A______________C______________B

⇒ AB = AC+ BC

Since C is the bisects of AB, So AC = BC

⇒ AB = AC+ BC

⇒ AB = 2AC

Substitute the values of If AC = 8x - 1 and BC = 4x + 19,

⇒ 8x - 1 = 4x + 19,

Rearranging the terms in the above equation,

⇒ 8x - 4x  = 1 + 19,

⇒ 4x = 20,

⇒ x = 20/4,

⇒ x = 5

So AB = 2AC

⇒ AB = 2(8x - 1) = 16x -2

Substitute the value of x = 5 in the above equation,

⇒ AB = 16(5) -2

⇒ AB = 78

Hence, the length of AB is 78 units.

Learn more about the line segment here:

brainly.com/question/25727583

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1 year ago
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