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MATH SOLVE
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Joe dealt 20 cards from a standard 52-card deck, and the number of red cards exceeded the number of black cards by 8. he reshuffled the cards and dealt 30 cards. this time, the number of red cards exceeded the number of black cards by 10. determine which deal is closer to the 50/50 ratio of red/black expected of fairly dealt hands from a fair deck and why.a. the first series is closer because 1/10 is farther from 1/2 than is 1/8.b. the series closer to the theoretical 50/50 cannot be determined unless the number of red and black cards for each deal is given.c. the second series is closer because 20/30 is closer to 1/2 than is 14/20.d. the first series is closer because the difference between red and black is smaller than the difference in the second series.
General
2 months ago
Each triangle is a 30-60-90 triangle, and the hypotenuse of one triangle is the longer leg of an adjacent triangle. the hypotenuse of the largest triangle is 8 centimeters. what is the number of centimeters in the length of the longer leg of the smallest triangle? express your answer as a common fraction.
General
2 months ago
A random sample of 30 households was selected from a particular neighborhood. the number of cars for each household is shown below. estimate the mean number of cars per household for the population of households in this neighborhood. give the 95% confidence interval.a. 1.14 to 1.88b. 1.12 to 1.88c. 1.12 to 1.98d. 1.14 to 1.98
General
2 months ago
F. if a 2 x 6 (which means the actual dimensions of the board are 1.5 in. x 5.5 in.) milled from the same wood (and therefore has the same density) weighs 3.2 lb, how long is the board?
General
2 months ago
Sales prices of baseball cards from the 1960's are known to possess a skewed-right distribution with a mean sale price of $5.25 and a standard deviation of $2.80. suppose a random sample of 100 cards from the 1960's is selected. describe the sampling distribution for the sample mean sale price of the selected cards.
General
2 months ago
evaluate tan60degrees over cos45degrees
General
2 months ago
Noam walks home from school by walking 8 blocks north and then 6 blocks east. how much shorter would his walk be if there were a direct path from the school to his house? assume that the blocks are square.
General
2 months ago
The equation for a parabola has the form y = ax2 + bx + c, where a, b, and c are constants and a ≠ 0. find an equation for the parabola that passes through the points (−1, −10), (1, −6), and (2, −13).
General
2 months ago
The school band collected $2,892 for 480 tickets sold to their spring concert. Adult tickets were $8 each and student tickets were $5 each. How many adult tickets were sold?
General
2 months ago
helppp ive tried 0 and it wasnt right7x(x+1.8)=0
General
2 months ago
Gold has a density of 19,300 kg/m3 . Calculate the mass of 0.02 m3 of gold in kilograms.
Algebra
2 months ago
Determine the missing number: 374+ +223=999 We can rearrange the equation and use subtraction to help us: 999-374-223= ?
Algebra
2 months ago
The difference between 62% of a number and 12% of the same number is 812.What is the 25% of the number?
Algebra
2 months ago
A store offers a sale where all items are priced at 20% off. If the sale price of a bed was $ 400, what was the original price before the markdown?
Algebra
2 months ago
Rewrite 28 and 72 as product of their prime factors.
Algebra
2 months ago
The radius of a circle is 13 in. Find its area to the nearest whole number. Answer: A=square in2
Geometry
2 months ago
Cerebry Cerebry - Spark + X app.cerebry.co Practice Now Practice Level Practice Level Capable Strong 6 Ninja Topic 9.09% Question Expand Expand and simplify p-242-pp-48. Answer Answer=square 1113WC1 -3,4 I Pass Check Answer See Hint
Algebra
2 months ago
Multiply. =7.1 * 81.24
Algebra
2 months ago
Karl rides his bicycle 120 feet in 10 seconds. How many feet does he ride in 1 minute? 2 feet 12 feet 720 feet 7,200 feet
Algebra
2 months ago
Paul's budget for food is 30% of the budget he has for rent. If his budget for food is $ 225, what is his budget for rent?
Algebra
2 months ago
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