There are (n r) different linear arrangements of n balls of which r are black and n-r are white. give a combinatorial explanation of this fact Question solved general 5 months ago 8449
One of the x-intercepts of the parabola represented by the equation y = 3x^2 + 6x − 10 is approximately (1.08, 0).The other x-intercept of the parabola is approximately ______.(Round to the nearest hundredth) Question solved general 5 months ago 1151
Sierra left $4.50 as a tip for a waiter. This was 18% of the bill before the tip. How much was her total bill before the tip? Question solved general 5 months ago 8379
Emma earns $6 each time she mows the lawn and $8 per hour for babysitting. She is saving up to buy a new pair of jeans that cost $48. If she mows the lawn x times and babysits for y hours, which graph shows the amount of work she needs to complete to earn at least enough to purchase the new jeans? Question solved general 5 months ago 2008
Vince borrows $900 to buy a couch. He will pay off the loan by paying 1.5% simple interest for 2 years. Vince incorrectly calculates the amount he will pay back using the expression below. 900 + 900(1.015 • 2) What is the correct amount Vince will pay back altogether? Explain the error in Vince’s expression. Question solved general 5 months ago 8159
Please help me I need help finding the inequality and the interpretation. Either one is fine. Question solved general 5 months ago 9630
I thought of a two digit number. This number is bigger than product of it's digits by 52. What was the number? There is more then one number. PLEASE HELP!! THIS IS DO TODAY! Question solved general 5 months ago 7723
After a 3% increase, the population of a city is 741000. what was the former population? (remember: do not use commas in your answer!) Question solved general 5 months ago 6048
Franco earns $8 per hour at his after-school job. Last week, he received a paycheck of more than $168. If he worked for h hours that week, find all the inequalities that represent this situation. Question solved general 5 months ago 7530
Which of the following statements are true regarding functions? Question solved general 5 months ago 5424
The length of the minute hand is 150% of the length of the hour hand.what distance will the tip of the minute hand move in 45 minutes? round to the nearest hundredth. the minute hand will move ? millimeters. Question solved general 5 months ago 1987
A carpenter is making tables (x) and chairs (y). Each table takes 5 hours to make and is sold for $100 and each chair takes 3 hours to make and is sold for $30. His goal each week is to make more than $500 from selling his tables and chairs and work no more than 40 hours. Which combination of tables and chairs would maximize his profit?Question options:a/ 8 tables and 0 chairsb/ 2 tables and 10 chairsc /4 tables and 3 chairsd/ 5 tables and 0 chairs Question solved general 5 months ago 6565
A building lot in a city is shaped as a 30°-60°-90° triangle, like the figure shown. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. Show how you know. b. Find the length of the hypotenuse of the triangular lot. Show how you know. Question solved general 5 months ago 8129
A gardener charges a flat fee of $16 per visit. If he conducts v visits in a month, and his total earnings are d dollars, the equation represents the situation. In a particular month, he earned $336. The number of visits he made was . Question solved general 5 months ago 9925
Categorize the following graph as linear increasing linear decreasing exponential growth or exponential decay Question solved general 5 months ago 3159
What is the y-intercept of the function,represented by the table of values below? Question solved general 5 months ago 8883
Consider the function y=f(x)=3^xthe values of f(1/2) and of (1/4), rounded to the nearest hundredth, are _____ and _____, respectively. Question solved general 5 months ago 7334
For a nonnegative integer $n$, let $r_9(n)$ stand for the remainder left when $n$ is divided by $9.$ For example, $r_9(25)=7.$ What is the $22^{\text{nd}}$ entry in an ordered list of all nonnegative integers $n$ that satisfy $$r_9(5n)\le 4~?$$(Note that the first entry in this list is $0$.) Question solved general 5 months ago 6872