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Nikolay [14]
4 years ago
14

What situations would solve by graphing be your preferred choice? Give an example.

Mathematics
1 answer:
Damm [24]4 years ago
4 0

Answer:

1) The solve by graphing will the preferred choice when the equation is complex to be easily solved by the other means

Example;

y = x⁵ + 4·x⁴ + 3·x³ + 2·x² + x + 3

2) Solving by substitution is suitable where we have two or more variables in two or more (equal number) of equations

2x + 6y = 16

x + y = 6

We can substitute the value of x = 6 - y, into the first equation and solve from there

3) Solving an equation be Elimination, is suitable when there are two or more equations with coefficients of the form, 2·x + 6·y = 23 and x + y = 16

Multiplying the second equation by 2 and subtracting it from the first equation as follows

2·x + 6·y - 2×(x + y) = 23 - 2 × 16

2·x - 2·x + 6·y - 2·y = 23 - 32

0 + 4·y = -9

4) An example of a linear system that can be solved by all three methods is given as follows;

2·x + 6·y = 23

x + y = 16

Step-by-step explanation:

You might be interested in
Question 13 pts
oee [108]

Answer:

1. 68%

2. 50%

3. 15/100

Step-by-step explanation:

Here, we want to use the empirical rule

1. % waiting between 15 and 25 minutes

From what we have in the question;

15 is 1 SD below the mean

25 is 1 SD above the mean

So practically, we want to calculate the percentage between;

1 SD below and above the mean

According to the empirical rule;

1 SD above the mean we have 34%

1 SD below, we have 34%

So between 1 SD below and above, we have

34 + 34 = 68%

2. Percentage above the mean

Mathematically, the percentage above the mean according to the empirical rule for the normal distribution is 50%

3. Probability that someone waits less than 5 minutes

Less than 5 minutes is 3 SD below the mean

That is 0.15% according to the empirical rule and the probability is 15/100

7 0
3 years ago
A factory produces 80,000 candies each day they produce equal quantities of for flavor cherry ,Lemon , orange , and strawberry.T
Serhud [2]

Answer:

The probably of randomly selecting an orange flavoured candy is 1/4 or 0.25

Step-by-step explanation:

Extracting the key information from the question asked:-

*** A factory produces 80,000 candies

*** Everyday of the week, they produce equal quantities of candies with varieties of flavours like cherry, lemon, orange and strawberry.

*** The candies are mixed up while packaging.

*** We are simply required to find or calculate the probability that one randomly selected candy from the pack is orange flavoured candy.

   From the question, we were informed that a particular company has the capacity of producing 80,000 candies everyday.   The company also produces these candies in four separate flavours. This now means that the number of orange candies produced will be the same as the number of strawberry candies produced and this will also be equal to the number of cherry candies produced and then the same as the number of lemon flavours made.

 That is:

Number of lemons = number of strawberries = number of cherries = number of orange flavours.

 80,000 candies are produced everyday. In order to calculate the number of equal proportions of strawberry/cherry/orange/lemon candies made per day, we will simply have to divide the total number of candies produced per day by the number of flavours available:

    = 80,000/4

    = 20,000

  Therefore, 20,000 candies of each of the four different flavours are produced by the company per day.

  Now, the probability of  randomly selecting an orange candy is

 

= the number of orange candies made per day/total number of candies produced per day

P(orange candy)

= 20,000/80,000

=  1/4

= 0.25

 The probability of randomly selecting an

orange candy is 1/4 or 0.25

4 0
4 years ago
Solve these equations using elimination not substitution? 8x + 3y = 13 3x + 2y = 11 15 Points!
tia_tia [17]

Answer:

x = -1, y = 7

Step-by-step explanation:

8x + 3y = 13

3x + 2y = 11

Multiply the first equation by -2 and the second equation by 3. Then add them.

     -16x - 6y = -26

(+)     9x + 6y = 33

--------------------------

       -7x         = 7

x = -1

Now substitute x = -1 in the first original equation and solve for y.

8x + 3y = 13

8(-1) + 3y = 13

-8 + 3y = 13

3y = 21

y = 7

Answer: x = -1, y = 7

8 0
3 years ago
Some one please help how do you do this?
fredd [130]

Answer:

4.3

Step-by-step explanation:

cos 42°= 3.2/x

x= 3.2 / cos 42°

7 0
3 years ago
Solve each of the following addition problems. a. 56 + 378 + 299 = b. 32,465 + 16,002 + 5,432 = c. 231 + 43 + 309 = d. 3,256 + 1
vladimir2022 [97]

Answer:

Answers will be down below

Step-by-step explanation:

A. 733

B. 53,899

C. 583

D. 38,257

E. 3,525

F. 423

G. 737

H. 44

I. 537

J. 964

8 0
3 years ago
Read 2 more answers
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