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Eva8 [605]
3 years ago
15

Which is a quantitative variable?

Mathematics
2 answers:
Neporo4naja [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

dusya [7]3 years ago
3 0

A) balance in savings account

This is because quantitative variables use numerical values.

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PRACTICE ANOTHER A piece of wire 18 m long is cut into two pieces. One piece is bent into a square and the other is bent into an
sergejj [24]

Answer:

Step-by-step explanation:

We have the equations

4x + 3y = 18   where x = the side of the square and y = the side of the triangle

For the areas:

A = x^2 + √3y/2* y/2

A = x^2  + √3y^2/4

From the first equation x = (18 - 3y)/4

So substituting in the area equation:

A = [ (18 - 3y)/4]^2 + √3y^2/4

A = (18 - 3y)^2 / 16 + √3y^2/4

Now for maximum / minimum area the derivative = 0 so we have

A' = 1/16 * 2(18 - 3y) * -3 + 1/4 * 2√3 y = 0

-3/8 (18 - 3y) + √3 y /2 = 0

-27/4 + 9y/8 + √3y /2 = 0

-54 + 9y + 4√3y = 0

y = 54 / 15.93

= 3.39 metres

So x = (18-3(3.39) / 4 = 1.96.

This is a minimum value for x.

So the total length of wire the square  for minimum  total area is 4 * 1.96

= 7.84 m

There is no maximum area as the equation for the total area is a quadratic with a positive leading coefficient.

3 0
2 years ago
The American flag is customarily made with its width and length in the ratio of 10 to 19. Which of the following dimensions is i
saul85 [17]
You have not provided the options, therefore, I cannot give an exact answer. However, I can help you with the procedures.

We are given that the ratio between the width and the length of the flag is 10 to 19.
This means that:
\frac{width}{length} =  \frac{10}{19}

Therefore, to get the correct choice, all you have to do is divide the width by the length, if the result is 10/19, then the dimensions given are correct.

Examples:
For length = 190 and width = 100,
width / length = 100 / 190 = 10 / 19 .........> correct choice

For length = 1.9 and width = 1,
width / length = 1 / 1.9 = 10 / 19 .......> correct choice

Hope this helps :)
3 0
2 years ago
94÷4≈
Tanya [424]

Answer:

ok, te ayudaré

94÷4=23.5

535÷5=107

76÷3=25.33333333333

829÷4=207.25

26÷9=2.8888888889

569÷8=71.125

97÷9=10.7777777778

527÷3=175.6666666667

25÷4=6.25

534÷9=59.3333333333

58÷6=9.6666666667

37÷5=7.4

49÷2=24.5

156÷6=26

I hope it serves you, give me a crown please

7 0
2 years ago
A bag contains 4 red chips, 5 blue chips, and 6 green chips. If Susie selects a chip from
Anestetic [448]

Answer:

23%

Step-by-step explanation:

4 0
3 years ago
The perimeter of a rectangle is 68 ft. Find the dimensions of the rectangle if the ratio of the length to the width is 9 : 8. Wh
Kipish [7]
I think the best answer is d since 18x + 16x
7 0
2 years ago
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