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algol13
3 years ago
11

Think of a real-life situation, different from the situations already described in this activity, where knowing the percent

Mathematics
1 answer:
Illusion [34]3 years ago
4 0

Answer:

Suppose the next case.

You want to buy an object from another state or country, you know that the cost of this object is C, and for bringing it from another place, you need to pay a tax, such that you do not know the exact value of the tax, you know that this can be between 3% and 9%.

Then the tax can be written as:

6% ± 3%

then the error is 3%, this means that the percent error is:

(3%/6%)*100% = 50%

Then you know that there is an error of 50% in the tax.

This can be helpful so you can estimate the maximum and minimum cost of tax that you will pay for this purchase.

Also there are a lot of situations where the percent error give us a lot of information.

"a measure of 10 cm with an error of 1 cm"

The percent error is: (1cm/10cm)*100% = 10%

And in a measure of 3cm with an error of 1cm we have:

(1cm/3cm) = 33.33%

In both cases we have the came error, but different percent error.

Then the percent error also tell us how much the error affects our measure.

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Let the polynomials A = 7x² + 3xy and B = -3xy .
bija089 [108]

Answer:

– 21x^3 y – 9x^2 y^2 e) is your answer

Step-by-step explanation:

Solve the following system for A and B:

{A = 7 x^2 + 3 x y

B = -3 x y

Express the system in matrix form:

(1 | 0

0 | 1)(A

B) = (7 x^2 + 3 x y

-3 x y)

Write the system in augmented matrix form and use Gaussian elimination:

(1 | 0 | 7 x^2 + 3 x y

0 | 1 | -3 x y)

Collect results:

Answer: {A = 7 x^2 + 3 x y  , B = -3 x y

then we multiply the results (7 x^2 + 3 x y) ( -3 x y) =  – 21x^3 y – 9x^2 y^2

7 0
3 years ago
What is the cube root of b^27
Sophie [7]
1 byte9 Cube root of b^27 = b^27/3 = b^9.
4 0
3 years ago
Which statement best describes the function below?
Illusion [34]
A it is a many to one function
7 0
3 years ago
Given the following vector fields and oriented curves C, evaluate integral F * T dsF = <-y, x> on the semicircle r(t) = &l
luda_lava [24]

Answer:

Answer is 16\pi.

Step-by-step explanation:

4 0
3 years ago
Which fraction represents the decimal 0.12<br> a) 1/12<br> b) 3/25<br> c) 4/33 <br> d ) 33/4
almond37 [142]

Answer:

The fraction that represents the decimal  0.12  is  3/25

Step-by-step explanation:

step 1: find the  place value  of the last digit in 0.12

Since they are 2 digits in 0.12 the   place  value  of last  digit is  the  100 th, therefore  0.12 is the same as  12/100

step 2: simplify 12/100  by dividing both the denominator and numerator  by 4

that is   <u>1</u><em><u>2 divide by 4   = 3  and 100 divide by 4  =25</u></em>

therefore  the fraction = 3/25


5 0
3 years ago
Read 2 more answers
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