6,966 Answered Questions for the topic mathematics

Mathematics Math Algebra 1 Algebra 2

06/03/21

How to find the standard deviation.

The variance in quiz 1 is 1.5. What is the standard deviation?Which formula would you use and why? PLEASE explain & SHOW steps!
Mathematics Math Algebra 1 Algebra 2

06/03/21

How to find the standard deviation.

The variance in quiz 1 is 1.5. What is the standard deviation?Which formula would you use and why?
Mathematics

06/03/21

How to solve x^4-3x+20

Mathematics

06/03/21

Purchase price math problem

The cost of 3 tubes of cream is $8.00+× and the of S&H is $8.00. So total is $15.16 including tax so what would it average out to be per tube
Mathematics Math Algebra 1 Algebra 2

06/03/21

Statistics Question, urgent help

Why isn't it 8(1.2) + 5(2.9) / 4.1, why can't it be divided by 4.1 (sum of category weights) its part of the formula, (sum of(category value x category weight)) divided by sum of category weights.... more
Mathematics Math Algebra 1 Algebra 2

06/03/21

Is it symmetric, positively skewed or negatively skewed distribution?

In terms of the median, mode, and mean of the question, I got the correct answer of the mean being 2.7, mode 2.5, and median 2.5, which I had plotted in the above histogram. My concern was that... more
Mathematics Math Algebra 1 Algebra 2

06/03/21

Statistics Question, urgent help

Show all steps please I really don't understand Why isn't it 8(1/2) + 5(2.9) / 4.1, why can't it be divided by 4.1 (sum of category weights) its part of the formula, (sum of(category value x... more

word problems! ( elementary math)

Kevin ran 6/7 miles and his brother James ran 10 miles. How many miles did the two of them run?​
Mathematics Statistics Probability

06/03/21

Help me solve this statistics question.

A drinks machine dispenses coffee into cups. A sign on the machine indicates that each cup contains 50 ml of coffee. The machine actually dispenses a mean amount of 55 ml per cup and 10% of the cup... more

06/03/21

Hi can someone please help with this, by using the formula of z-scores and z-scores table. Thank you so much!

If the systolic blood pressure of obese people has a mean of 132 and standard deviation of 8, find the probability that a person have the following blood pressure. Assume the variable is normally... more
Mathematics Math Probability Stem

06/02/21

Hi can someone please help with this, by using the formula the z-scores and z-scores table

The average age of the company's president is 56 years old. Assume the variable is normally distributed is four years, find the probability that the age of a president will be between 52 and 58.
Mathematics Math Algebra 1 Algebra 2

06/02/21

Statistics Question, urgent help

Which formula is used? Explain whyShow all steps please I really don't understand
Mathematics Math Algebra 1 Algebra 2

06/02/21

Statistics Question, please explain steps

Please explain all steps, thank you. Which formula is used?Why is it not 0.82(0.7) + x(0.9) / 0.7 + 0.9?
Mathematics Math Algebra 1 Algebra 2

06/02/21

How do you mark the measures of central tendency on a histogram?

How do you mark the measures of central tendencyon a histogram?Say you have Mode interval: (2-3) or 2.5, Median = 9.5, Mean = 2.7 for example.Please show this if you can, thank you so much.
Mathematics Math Algebra 1 Algebra 2

06/02/21

How do you mark the measures of central tendency on a histogram?

How do you mark the measures of central tendencyon a histogram? Say you have Mode interval: (2-3) or 2.5, Median = 9.5, Mean = 2.7 for example.Please show this if you can, thank you so much.
Mathematics Math Algebra 1 Algebra 2

06/02/21

Statistics Question, please explain steps

Please explain all steps, thank you. Which formula is used?
Mathematics Math Algebra 1 Algebra 2

06/02/21

math question help, please explain

PLEASE explain and which formula is used sample or population mean?
Mathematics Math Algebra 1 Algebra 2

06/02/21

Math Question Help

1.Lisa needs a science mark of 90% to get into her college program. If her term mark is82% and it is worth 70% of her final mark, is it possible for her to achieve the 90%?
Mathematics Math Algebra 1 Algebra 2

06/01/21

Math Question Help

The average daily rainfall for the first four days of May was 21 mm. On the first day itrained 15 mm, on the second day it rained 21 mm, and on the third day it rained 12 mm.How much did it rain on... more
Mathematics Trigonometry

06/01/21

Find the value of X

X=
Mathematics

06/01/21

The triangle above has the following side lengths b = 5.0 units and c = 17.2 units. What is the length of the other side? Answer to one decimal place.

The triangle above has the following side lengths b = 5.0 units and c = 17.2 units. What is the length of the other side? Answer to one decimal place.

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