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Aleks04 [339]
4 years ago
10

Why is graphing not always the best option for solving systems?

Mathematics
2 answers:
Sladkaya [172]4 years ago
6 0
Best Answer:  When graphing and locating the point of intersection & hence the solution, you might find that this point does not have integer co ordinates. You would have to estimate the approximate coordinates. Hence, the algebraic methods are preferred, as you could then state the exact co ordinates like (5/3, 4/9).        
RideAnS [48]4 years ago
3 0
1, Might not be precise 
2, Can be hard to plot the graphs
3, If there are many solutions that will be really hard to plot sometimes. 

This is just from the top of my head. 
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Someone please tell me and maybe ill pay you
rjkz [21]
4x = 6x -10
2x = 10
  x = 5

answer
x = 5
6 0
4 years ago
A survey of 163 persons was conducted at TCC, and it was found that 90 persons carried a cell phone, 81 persons carried a tablet
kirza4 [7]

1. The number of people who carried a cell phone or a tablet is <u>128</u>.

2. The probability that a person carries a cell phone or a tablet is <u>78.5%</u>.

3. The number of people who carried neither a cell phone nor a tablet is <u>35</u>.

4. The probability that a person carried neither a cell phone nor a tablet is <u>21.5%</u>.

5. The number of people who carried a cell phone only is <u>43</u>.

6. The probability that a person carried a cell phone only is <u>26.4%</u>.

7. The number of people who carried a tablet but not a cell phone is <u>38</u>.

8. The probability that a person carried a tablet but not a cell phone is <u>23.3%</u>.

<h3>Data and Calculations:</h3>

The sample size of the survey = 163

The number of persons who carried a cell phone = 90

The number of persons who carried a tablet computer = 81

The number of persons who carried both a cell phone and a tablet = 43

1. The number of people who carried a cell phone or a tablet is 128 (90 + 81 - 43).

2. The probability that a person carries a cell phone or a tablet is 78.5%. (128/163).

3. The number of people who carried neither a cell phone nor a tablet is 35 (163 - 128).

4. The probability that a person carried neither a cell phone nor a tablet is 21.5% (35/163).

5. The number of people who carried a cell phone only is 43.

6. The probability that a person carried a cell phone only is 26.4%(43/163).

7. The number of people who carried a tablet but not a cell phone is 38 (81 - 43).

8. The probability that a person carried a tablet but not a cell phone is 23.3% (38/163).

Learn more about probability at brainly.com/question/13604758

#SPJ1

<h3>Question Completion:</h3>

1. How many people carried a cell phone or a tablet?

2. What is the probability that a person carries a cell phone or a tablet?

3. How many people carried neither a cell phone nor a tablet?

4. What is the probability that a person carried neither a cell phone nor a tablet?

5. How many people carried a cell phone only?

6. What is the probability that a person carried a cell phone only?

7. How many people carried a tablet but not a cell phone?

8. What is the probability that a person carried a tablet but not a cell phone?

3 0
2 years ago
Help please................
astraxan [27]

Answer:

Answer given below

Step-by-step explanation:

4x2 + 11 = - 37

If u do by using formula

D = b^2 - 4ac

6 0
3 years ago
A landscaping company charges customers for lawn care based on the area of their yards. Mr. Jones was charged $52 for his yard,
crimeas [40]

Answer:

Landscaping Company will charge $80 for Neighbor yard.

Step-by-step explanation:

Given:

Charges of Mr. Jones = $52

Length of Mr. Jones yard = 65 feet

Width of Mr. Jones yard = 40 feet

Now we will find the area of Mr. Jones yard.

Yard is basically in rectangular form.

Hence we can;

Area of yard is equal to product of length of the yard and width of the yard.

Framing in equation we get;

Area of Mr. Jones Yard = 40\times 65 = 2600\ ft^2

Now Mr. Jones was charged $52 for a yard having Area 2600 sq. ft.

So we will find the per sq. ft charge applied by the company.

Per sq. ft charge will be equal to Charges of Mr. Jones divided by Area of Mr. Jones Yard.

Framing in equation form we get;

Per sq. ft charge = \frac{52}{2600} = \$0.02

Hence the Landscaping company charge Mr. Jones at $0.02 per sq.ft.

Now Given:

Length of Neighbor yard = 80 ft.

Width of Neighbor yard = 50 ft.

We need to find the Charges on Neighbor based on charges applied on Mr. Jones.

First we will find the Area of Neighbors yard we get;

Area of Neighbors yard = 80 \times50 = 4000\ ft^2

Charges of Neighbor yard will be equal to charges Landscaping company for per sq. ft multiplied by area of Neighbors yard.

Framing in equation form we get;

Charges of Neighbor yard = 0.02\times 4000 = \$80

Hence Landscaping Company will charge $80 for Neighbor yard.

8 0
3 years ago
PLEASE HELP QUICKLY. I NEED HELP!
mote1985 [20]

Answer:

4√5

Step-by-step explanation:

c = √a² + b²

c = √4² + 8²

c = √(16 + 64)

c = √80

c = 8.94427 (rounded to nearest 1/100000)

c = 4√5

8 0
3 years ago
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