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In 3 years, Dianna will be 4 times as old as she was 33 years ago. How old is Dianna now? Choose the most logical value for the variable to represent.
General
2 months ago
Can someone help me out with this? I''m not understanding how to solve these.2y-4x=20 y+4x=1
General
2 months ago
In slope-intercept form, what is the equation of the line passing through the points (3,17) and (7,25)
General
2 months ago
Carmen found m∠1 this way:m∠1 =105° because if two lines are parallel, alternate exterior angles are equal.Is her answer correct? Explain why or why not.
General
2 months ago
Which expression is equivalent to (x^6 y^8)^3 divided by x^2 y^2
General
2 months ago
Graph the system below and write its solution. y = -1/2 x -1-2 + y = -6.. there is also "no solution" or "infinite solution" answers.
General
2 months ago
The perimeter of a regular 6-sided figure is 30 units, and the length of each side is x+1 units. What is the value of x? The answer will get Brainliest
General
2 months ago
Find the surface area of the composite solid.A.680 in.2B.800 in.2C.920 in.2D.1,040 in.2
General
2 months ago
Check all of the following that are true for the series ∑n=1∞(−2)n(n!) A. This series converges B. This series diverges C. The integral test can be used to determine convergence of this series. D. The comparison test can be used to determine convergence of this series. E. The limit comparison test can be used to determine convergence of this series. F. The ratio test can be used to determine convergence of this series. G. The alternating series test can be used to determine convergence of this series. Note: You can earn partial credit on this prob
General
2 months ago
A group of college students built a self-guided rover and tested it on a plane surface. They programmed the vehicle to move along the path A–B–C–D–A represented on the coordinate plane. What distance will the rover cover if it completes one circuit?A. 36 metersB. 40 metersC. 54 metersD. 60 metersE. 68 meters
General
2 months ago
A government health official is interested in whether there has been a statistically significant decrease in teen smoking rates. In 2013, 8.4 percent of 12th graders had used tobacco in the past 30 days. With this data, we test the following hypotheses at the 5% significance level.The health official surveys 200 randomly selected 12th graders and finds that 14 of them have used tobacco in the past 30 days.H0: The percentage of 12th graders who have smoked in the past 30 days is equal to 8.4%.Ha: The percentage of 12th graders who have smoked in the past 30 days is greater than 8.4%.The p-value is 0.09. Which conclusion is correct?A. Accept H0.B. Fail to reject H0.C. Reject H0.
General
2 months ago
You measure the weight of 49 backpacks, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 8.8 ounces?. Based on this, what is the maximal margin of error associated with a 94% confidence interval for the true population mean backpack weight.
General
2 months ago
1) A light bulb producing company states that its lights will last an average of 1200 hours with a standard deviation of 200 hours. A sample of 100 light bulbs from the company were tested and the researcher found that the average life of each light bulb was 1050 hours. At a 95% confidence level, determine whether these light bulbs are in compliance with the company's claim.
General
2 months ago
the expression 9x represents the number of miles Allison hiked, and 4x+5 represents the number of miles that Adrian hiked in x days. Write an expression to show how many more miles Allison hiked than Adrian.A. 5x-5B. -5x+5C. 5x+5D. 13x+5
General
2 months ago
Jackie began her day with a pocketful of jelly beans. She gave half of them to her friend Marcus, and then a third of what she had left to Shelby. Finally, she and her sister each ate five jellybeans and no jellybeans remained. How many jellybeans did she give to Marcus?18 Jellybeansa. 15 Jellybeans.b. 12 Jellybeansc. 24 Jellybeansd. 24 Jellybeans.
General
2 months ago
Flip 10000 fair coins. You are offered a 1-1 bet that the sum is less than 5000. You can bet 1, 2, ..., 100 dollars. How much will you bet. How much will you bet if someone tells you that the sum of the coins is less than 5100?
General
2 months ago
Last month, you were able to purchase 8 computers. By the middle of the current month, you were able to purchase 8 more computers than last month. By the end of the current month you were only able to purchase 2 additional computers. What was the percentage increase from last month's purchases to the end of this month's purchases?
General
2 months ago
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?
General
2 months ago
A board 65 inches long is sawed into two pieces, so that one piece is 7 inches shorter than twice the length of the other piece ? Find the length of the two pieces
General
2 months ago
Ten students are receiving honors credit fortaking Mr. Friedman's class. This number isexactly 20% of the total number of studentsin the class. How many students are in Mr.Friedman's class?
General
2 months ago
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