Daily Mathematics Puzzles & Riddles - Challenge Yourself!

A quality control engineer is interested in estimating the proportion of defective items coming off a production line. In a sample of 300 items, 27 are defective. Find a point estimate for the true proportion of defectives from this production line.
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How many different ways are there to assign grades in a graduate class of 15 if the professor wants to assign 8 A, 5 B, and 2 C
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find the equation of the following lines:parallel to the line joining (1;2) and (-2;-2) and passing through (4;1)passing through the point (2; -3) and perpendicular to the line joining (2;-3) to (-1;-1)
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Find the final amount in the following retirement account in which the rate of return on the account and regular contribution change over time.$213 per month invested at 4% compounded monthly, for 4 years; then $348 per month invested at 7% compounded monthly for 4 years
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Marcos has 2003 pairs of shoes. In how many different ways can he select a left then a right shoe?
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Can somebody explain this and answer it please.
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please help. maths functions!
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PLEASE SOMEONE HELP ME!! ANSWER BELOW
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Please help I forgot how to do this(Photo)
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PLEASE HELP AND ANSWER CORRECTLYThe line plot displays the cost of used books in dollars.A horizontal line starting at 1 with tick marks every one unit up to 9. The line is labeled Cost in Dollars, and the graph is titled Cost of Used Books. There is one dot above 2, 4, 8, and 9.There are two dots above 6 and 7. There are three dots above 3.Which measure of center is most appropriate to represent the data in the graph, and why? The mean is the best measure of center because there are no outliers present. The mean is the best measure of center because there are outliers present. The median is the best measure of center because there are no outliers present. The median is the best measure of center because there are outliers present.The line plot displays the cost of used books in dollars.A horizontal line starting at 1 with tick marks every one unit up to 9. The line is labeled Cost in Dollars, and the graph is titled Cost of Used Books. There is one dot above 2, 4, 8, and 9.There are two dots above 6 and 7. There are three dots above 3.Which measure of center is most appropriate to represent the data in the graph, and why? The mean is the best measure of center because there are no outliers present. The mean is the best measure of center because there are outliers present. The median is the best measure of center because there are no outliers present. The median is the best measure of center because there are outliers present.
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If the volume of a right rectangular prism is 1.5 in.3 and its length and width have a product of 1.5 in.2, what is the height of this prism?
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PLEASE HELP AND ANSWER CORRECTLYThe line plot displays the number of roses purchased per day at a grocery store.A horizontal line starting at 0 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 10. There are two dots above 1 and 4. There are three dots above 2 and 5. There are 4 dots above 3.Which of the following is the best measure of center for the data, and what is its value? The median is the best measure of center, and it equals 3.5. The median is the best measure of center, and it equals 3. The mean is the best measure of center, and it equals 3. The mean is the best measure of center, and it equals 3.5.
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help im confused is it The median is the best measure of center, and it equals 3. or is it The median is the best measure of center, and it equals 3.5.The line plot displays the number of roses purchased per day at a grocery store.A horizontal line starting at 0 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 10. There are two dots above 1 and 4. There are three dots above 2 and 5. There are 4 dots above 3.Which of the following is the best measure of center for the data, and what is its value? The median is the best measure of center, and it equals 3.5. The median is the best measure of center, and it equals 3. The mean is the best measure of center, and it equals 3. The mean is the best measure of center, and it equals 3.5.
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Which expression is equivalent to -30a^2+45a
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Need help with questions 1-6 and Part A-D and A-B for questions 3&4
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find the area of the trapazoid pls :))
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Part C: Kayla held a pole in the swimming pool. The bottom of the pole was at a depth of 3 feet. How should Kayla mark the level of the bottom of the pole on the number line? Explain how you determined this.
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Help I need help with this now
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Which of these equations are TRUE based on the exponential function 2x=8? (Look at the image above)A. II, IV, and VIB. II, III, and IVC. I, V, and VID. I, III, and V
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Utilizando los nmeros 1,4,5 y 8 solo una vez, escribe:numero impar mas pequeo
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Find the surface area of a sphere that has radius 7 m.
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Diane invested 3000 in a fund for 4 years and was paid simple interest the total interest that she received on the investment was $480 as a percentage what was the annual interest rate of her investment?
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2= ln(x+9)Solve for x. Round to the nearest hundredth.
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HELP WHAT IS THE ANSWER TO THISA charity needs to report its typical donations received. The following is a list of the donations from one week. A histogram is provided to display the data.1, 1, 6, 10, 10, 11, 12, 14, 15, 18, 20, 20, 20, 20, 20A graph titled Donations to Charity in Dollars. The x-axis is labeled 1 to 5, 6 to 10, 11 to 15, and 16 to 20. The y-axis is labeled Frequency. There is a shaded bar up to 2 above 1 to 5, up to 3 above 6 to 10, up to 4 above 11 to 15, and up to 6 above 16 to 20.Which measure of center should the charity use to accurately represent the data? Explain your answer. The median of 14 is the most accurate to use, since the data is skewed. The mean of 13.2 is the most accurate to use, since the data is skewed. The median of 13.2 is the most accurate to use to show that they need more money. The mean of 14 is the most accurate to use to show that they have plenty of money.
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