1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leto [7]
3 years ago
7

Explain how you use estimation to check the reasonableness of a solution to a practical problem.

Mathematics
2 answers:
miskamm [114]3 years ago
7 0

Answer:

Estimation is just giving a general answer to the situation and can be specified on specifics depending on the numbers used and whichever question it's asking. But also remember that whenever you estimate your answer will be an approximate answers, not an exact.


motikmotik3 years ago
4 0

Actually, here is the correct answer. The person above (but if I get brainliest, the person below) me didn't answer the question properly. He/she just talked about estimation not how you could use estimation to check the reasonableness of a solution to a practical problem.

Usually, when you try and solve a problem, you estimate first. After that, you actually solve the problem to get the exact answer. If your estimate was close to your answer, it probably means that your answer is correct. For example, take a look at this problem: Miguel must always have at least $500 in his bank savings account to avoid a fee charged by the bank. He has $764 in the account. He wants to withdraw $278 from the account. Miguel believes that he will not be charged a fee if he makes this withdrawal. Estimate with lower or upper bound estimate to see if he is correct. Notice that the problem uses the word “at least”. These words tell you to find a lower bound estimate. Miguel’s balance can never be less than 500 dollars. The lower bound estimate in subtraction is the result of rounding the minuend down and the subtrahend up. If the lower bound estimate is equal to, or less than five hundred dollars then Miguel may risk having an actual balance less than five hundred dollars after the withdraw. The lower bound estimate equals four hundred dollars. Since the estimate is less than five hundred dollars, Miguel’s balance could drop below five hundred dollars if he withdraws two hundred seventy-eight dollars. So Miguel should re-think his conclusion. In fact if he withdraws two hundred seventy eight dollars his actual balance would be four hundred eighty-six dollars. So he would be charged a fee.

I turned this in and got 100% on K12. It was for my math journal. I didn't copy. Search it on a plagiarism website if you think I did.

You might be interested in
The length of a rectangle Is 3 Inches more than its width, and its perimeter is 22 Inches. Find the width of the rectangle.
Vesnalui [34]

Answer:

the width of the rectangle is 7 inches

Step-by-step explanation:

3 0
3 years ago
Matthew randomly picks 3 coins from his pocket. What is the probability of Matthew picking a dime, a dime, and a nickel in that
exis [7]
I would say 4 out of 20
7 0
3 years ago
Spencer drink 2/3 liter of water Monday before going jogging he drink 5/7 liter of water after his jog how much water did Spence
Alenkasestr [34]

Answer:

1 8/21 liters

Step-by-step explanation:

4 0
3 years ago
Factor f(x) = 4x^2 − 5x − 21
jeka94

Answer:

x = -7/4, 3

Step-by-step explanation:

Use quadratic formula

4 0
3 years ago
Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd =
swat32

Answer:

Test statistic, t_{s} = -0.603 (to 3 dp)

Step-by-step explanation:

Deviation, d = x -y

Sample mean for the deviation

\bar{d} = \frac{\sum x-y}{n}

\bar{d} = \frac{(28-6) + (31-27)+(20-26)+(25-25)+(28-29)+(27-32)+(33-33)+(35-34)}{8} \\\bar{d} = -0.625

Standard deviation: SD = \sqrt{\frac{\sum d^{2} - n \bar{d}^2}{n-1}  }

\sum d^{2}  = (28-26)^2 + (31-27)^2 +(20-26)^2 +(25-25)^2 +(28-29)^2 +(27-32)^2 +(33-33)^2 +(35-34)^2\\\sum d^{2}  = 63

SD = \sqrt{\frac{63 - 8 *  (-0.625)^2}{8-1}  }

SD =2.93

Under the null hypothesis, the formula for the test statistics will be given by:

t_{s} = \frac{ \bar{d}}{s_{d}/\sqrt{n}  } \\t_{s} = \frac{- 0.625}{2.93/\sqrt{8}  }

t_{s} = -0.6033

6 0
3 years ago
Other questions:
  • A boat travels 105 km downstream in 5 hours. The return trip upstream takes 7 hours. Find the speed of the boat in still water a
    9·1 answer
  • Sierra says that she can simplify the left side of the inequality 2(-3+ 5) + 22 -4(x- 2)- 3 by combining the terms within the pa
    11·1 answer
  • For the equation -4y = 8x , what is the constant of variation?
    12·2 answers
  • The floral shop marks up their arrangements 31% on cost. If the floral arrangement costs $150, what would the selling price be?
    15·2 answers
  • How do I calculate the perimeter of this figure?
    5·1 answer
  • What unit is used to measure the attribute under investigation?
    13·1 answer
  • When might the inter-quartile range be better for describing a data set than the range?
    15·2 answers
  • Is 7.7777777777 an irrational number
    5·2 answers
  • What is the measure of a single interior angle in a 16-gon?
    9·1 answer
  • Bill Board is "lording" his SAT score over his friend, Rhoda Dendron, who took the ACT. "You only got a 25 in math," he chortled
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!