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oksano4ka [1.4K]
3 years ago
7

How do you know if something is linear

Mathematics
2 answers:
alukav5142 [94]3 years ago
3 0

when an  equation between two variables that gives a straight line when plotted on a graph

Hatshy [7]3 years ago
3 0

If the equation has an x^2 or x^3 or anything other than just numbers and x's, then it is NOT linear. a linear equation is of the form:  

y=mx+b

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When measuring the length a and the width b of a rectangle, it was found that 5.4< a< 5.5 and 3.6< b< 3.7 (in centim
leva [86]

Answer:

The possible values of the perimeter of the rectangle is between 18 and

18.4 cm ⇒ [18 < perimeter of rectangle < 18.4] cm

Step-by-step explanation:

* Lets explain how to solve the problem

- The perimeter of any quadrilateral is the sum of the length of its

  four sides

- The rectangle is a quadrilateral with each two opposite sides are

  equal in lengths, then its perimeter = 2l + 2w, where l, w are its

  length and width

∵ The the length of the rectangle is a

∵ 5.4 < a < 5.5 cm

∵ The perimeter of the rectangle = 2a + 2b

- Lets multiply the inequality by 2

∴ 5.4 × 2 < a × 2 < 5.5 × 2

∴ 10.8 < 2a < 11 ⇒ (1)

∵ The width of the rectangle is b

∵ 3.6 < b < 3.7 cm

- Lets multiply the inequality by 2

∴ 3.6 × 2 < b × 2 < 3.7 × 2

∴ 7.2 < 2b < 7.4 ⇒ (2)

- <u><em>Add inequalities (1) and (2)</em></u>

∵     10.8 < 2a < 11

  +   7.2 < 2b < 7.4

∴  18 < 2a + 2b < 18.4

∵ 2a + 2b represents the perimeter of the rectangle

∴ The possible values of the perimeter of the rectangle is between

  18 and 18.4 cm ⇒ [18 < perimeter of rectangle < 18.4] cm

7 0
3 years ago
The base and height of the triangle to the right are multiplied by 4. Describe the change in the area.
Artemon [7]
Area would be 15 if base is 6m and height is 5m
So 6*4=24
5*4=20
Area would be 240 for the 2nd answer

240/15=16

The area is 16x bigger
5 0
3 years ago
McKenzie has her two books including 12 books by her favorite author. Express as a decimal the number of books by her favorite a
lisov135 [29]

Answer:

0.1666666666666666666666666....

The decimal is repeating because it goes on forever and never ends.

Step-by-step explanation:

4 0
3 years ago
What is the nth term of the sequence? 4, 2, 0, –2, ..
tatuchka [14]

' n '    the 'n'th term

1               4
2               2 
3               0
4              -2 .

In general, the 'n'th term of the sequence is   A(n) = 6 - 2n  .
3 0
3 years ago
A triangle is cut from a piece of fabric. The triangle has a height of 8 inches in an area of 120 in.². What is the length of th
andreyandreev [35.5K]

Answer: 30 inches

Step-by-step explanation:

Given:

ABC-tringle

BH= 8 in - height

S= 120 in^2

AC-?

Solution:

S=1/2ab

120in=1/2a*8in

120=4a

4a=120

a=30 in

8 0
3 years ago
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