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MATH SOLVE
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Find the measure of BCD
General
3 months ago
Consider the diagram in the picture provided. What is the measure of arc PD?(A) 35 degrees(B) 90 degrees(C) 110 degrees(D) 180 degrees
General
3 months ago
The function h(t) = -4.9t² + 19.6t is used to model the height of an object projected in the air where h(t) is the height (in meters) and t is the time (in seconds). What is the domain and range?yw:)
General
3 months ago
Special Sequence and SeriesFind ln(–256.7).
General
3 months ago
A local clothing shop is marking down all of its summer clothes by 75%. Sarah would like to purchase a swimsuit that is originally priced at $50. When she gets to the register, she signs up for a loyalty card that saves her an additional 10%. How much did she spend on the swimsuit after both discounts?Find the markdown price of the swimsuit. Then, find the markdown of the loyalty card. Subtract to find the final price.
General
3 months ago
Cecilia set a goal to raise $4,000.00 for her favorite charity this year. She has decided to participate in a walk-a-thon to help her reach her goal. She found 70 sponsors and each sponsor has agreed to give her $0.65 for each mile that she walks in the walk-a-thon. If she walks a total of 15 miles, how much money will she still need to raise in order to reach her goal for this year?
General
3 months ago
PLEASE HELP! I really do not understand! I attached the whole question!!!Use the given graph to determine the limit, if it existsA coordinate graph is shown with a horizontal line coming from the left crossing the y axis at four and ending at the open point 2,4, a closed point at 2,1, and a horizontal line starting at the open point 2, negative 4 and continuing to the rightFind limit as x approaches two from the left of f of x. and limit as x approaches two from the right of f of x
General
3 months ago
1+cos(18x)=A. 2cos^2(9x) B. 2sin^2(9x)C. 2cos^2(18x)D.2sin^2(18x)
General
3 months ago
Pepper Jackie used a precision hydrometer to perform an experiment to local restaurants to determine which restaurant uses the most sugar in their beverages. She randomly tested 15 different types of beverages at each location to perform the conversion to calculate the amount of sugar in grams. The results of the experiment are displayed in the box plots below. Which description most accurately summarizes the sample results?
General
3 months ago
aunt jane has a vegetable garden that is 10 feet long and 12 feet wide. she wants to expand the garden next year to be able to grow more vegetables, so she plans to extend the length and width each by 1 2/3 feet. what will the area of next years garden be? by what percent with the garden have grown? round to the nearest whole number percent.
General
3 months ago
The difference of nine, and a number divided by four is 13.A. 9+* = 13;y= 16B. 9-* = 13;y= 16C.9-4 = 13;y=-16D. 2-9= 13,=
General
3 months ago
A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the store's in-house credit card versus using a Visa, Mastercard, or one of the other major credit cards. To do this, it has randomly selected a sample of customers who have made one or more purchases with each of the types of credit cards. The following represents the results of the sampling:In-House Credit Card National Credit CardSample Size: 86 113Mean Monthly Purchases: $45.67 $39.87Standard Deviation: $10.90 $12.47Suppose that the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit cards, using a significance level of .05, what is the value of the test statistic assuming the standard deviations are known?z = 11.91z = 2.86t = 3.49z = 3.49
General
3 months ago
Graph the equations to solve the system y= -2x y= 3x + 5
General
3 months ago
A commonly used IQ test is scaled to have a mean of 100 and a standard deviation 15. A school counselor was curious about the average IQ of the students in her school and took a random sample of fifty students’ IQ scores. The average of these was 107.9. Find a 95% confidence interval for the student IQ in the school.
General
3 months ago
A group consists of fivefive men and fivefive women. ThreeThree people are selected to attend a conference. a. In how many ways can threethree people be selected from this group of tenten? b. In how many ways can threethree women be selected from the fivefive women? c. Find the probability that the selected group will consist of all women.
General
3 months ago
A researcher wants to estimate the percent of the population that uses the radio to stay informed on local news issues. The researcher wants to estimate the population proportion with a 95% level of confidence. He estimates from previous studies that no more than 30% of the population stay informed on local issues through the radio. The researcher wants the estimate to have an error of no more than .03. The necessary sample size is at least _______.
General
3 months ago
A Department of Transportation report about air travel found that nationwide, 76% of all flights are on time. Base the following questions on 125 randomly selected flights. You may assume the only outcomes are that a flight is either late or is on time. (For all probabilities round to tenth of a percent ) a) How many flights would you expect to be late
General
3 months ago
A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion. a) State the 95% confidence interval for population proportion. (Round to tenth of a percent) b) State the margin of error (Round to tenth of a percent)
General
3 months ago
Determine whether the graph is the graph of a function. A coordinate axis is drawn with a line crossing the x axis at negative two and the y axis at negative ten. Yes No
General
3 months ago
Which of the following fitness scores is the highest relative score? a score of 38 on a test with a mean of 31 and a standard deviation of 5.8 a score of 1124 on a test with a mean of 1080 and a standard deviation of 67.7 a score of 4709 on a test with a mean of 3960 and a standard deviation of 557.1 All scores are relatively equal
General
3 months ago
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