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Harrizon [31]
4 years ago
12

If a system of two inequalities has a solution, then their two half planes intersect , true or false ?

Mathematics
1 answer:
Nana76 [90]4 years ago
7 0

Answer: The answer is true.


Step-by-step explanation:  The given statement is

'If a system of two inequalities has a solution, then their two half planes intersect'.

We are to check whether the statement is true or false.

Let a system of two inequalities be

x+y\geq 3,\\\\2x+5y\leq 10.

These inequalities has a solution, for example, x = 2, y = 1.

Plotting these inequalities on a graph paper (please see the attached graph), we see that the two half planes intersect, which is represented by the double shaded region in the graph.

Thus, the given statement is TRUE.

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A crate contains cylindrical cans of soup for shipment. Each crate is a cube with side lengths of 14in. Each soup can is 6in tal
dalvyx [7]
Each cube has a side length of 14 in.
Each can of soup is 6 in tall and has a diameter of  3.5 in.

Refer to the figure shown below.

Top view:
For each side of the crate, number of cylinders that can fit in the crate is
14/3.5 = 4
Therefore 4² = 16 cylinders can be fitted in the crate (top view).

Side view:
The number of cylinders that can be stacked up in the crate is
14/6 = 2.333
Therefore only 2 rows are cylinders can be stacked up.

The total number of cylinders that will fit in a crate is 16*2 = 32.

Note:
Computing volumes for the crate and for a soup can will give wrong answers.
The volume of a soup can is V₁ = (3.14/4)*(3.5²)*6 = 57.6975 in³
The volume of a crate is V₂ = 14³ = 2744 in³
Therefore
V₂/V₁ = 47.55, that is 47  cans per crate.
The problem is that the geometry of the cans will make it impossible to fit 47 cans into the cube.

Answer: 32 soup can per crate.

6 0
3 years ago
What is 225 percent as a decimal or fraction in simpilist form
serg [7]
225/100

225 ÷ 25 = 9
100 ÷ 25 = 4

So, 225% as a fraction in it's simplest form would be 9/4

If you want 225% as a decimal:

225/100
225 ÷ 100 = 2.25

So, 225% as a decimal in its simplest form would be 2.25


I really hope this helped you! c:
6 0
3 years ago
Dan spend half of his allowance going to the movies.He washed the family car and earned eight dollars.What is his weekly allowan
Karolina [17]

Answer:

8 dollars

Step-by-step explanation:

if "x" is his weekly allowance:

x-0.5x+8=12

Dan make x dollars, then he spend 0.5x dollars and he earned 8 dollars, and that is 12 dollars.

0.5x=12-8

x=8 dollars

4 0
3 years ago
Which sequence could be described by the explicit definition: a n = n 2 − 5
kirza4 [7]

The sequence represented by given explicit definition is:

-4,-1,4,11,20,....

Step-by-step explanation:

We will find the terms of the sequence to find the right sequence for given explicit definition

Given explicit formula is:

a_n=n^2-5

We will put n=1,2,3,4,5...... in the formula

So,

Putting n=1

a_1=(1)^2-5\\=1-5\\=-4

Putting n=2

a_2=(2)^2-5\\=4-5\\=-1

Putting n=3

a_3=(3)^2-5\\=9-5\\=4

Putting n=4

a_4=(4)^2-5\\=16-5\\=11

so, comparing the values with given options we can conclude that

The sequence represented by given explicit definition is:

-4,-1,4,11,20,....

Keywords: Sequence, Explicit definition

Learn more about sequences at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

5 0
3 years ago
Six mini cakes and 10 cookies cost
Rus_ich [418]
A cookie costs 7 dollars and a mini cake costs 5 dollars
8 0
3 years ago
Read 2 more answers
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