Questions in mathematics

Questions in mathematics

[Done] What is the median of the numbers 12.0, 12.3, 12.7, and 13.1?

[Done] If [tex]6x - 5 = 3x - 16[/tex], then [tex]x = ?[/tex]

[Done] Which equation is shown on the graph? A. y = 2x B. y = x + 2 C. y = 2x + 2 D. y = x – 2

[Done] The area of a trapezoid is 150 in². If the height is 8 in and the longer base is 23 in, what is the length of the shorter base?

[Done] A candidate for mayor wants to know how strong her support is among voters, so she posts an online survey on her campaign website for voters to take. Is this sample of voters likely to be biased or unbiased? A. Biased B. Unbiased --- To determine whether voters would be willing to vote for a tax increase to improve the city's schools, the board of education surveys 500 parents of children in the city's schools. Why is this sample likely to be biased? A. The entire population of the city was not surveyed. B. Parents of school children are too busy to be bothered with surveys. C. There are not enough people in the sample. D. Parents of school children are more likely to be willing to pay more to improve schools. --- In a bin containing 500 marbles, 180 are red, 240 are blue, and 80 are green. In a bowl of 25 marbles scooped from this bin, how many would be expected to be green? A. 4 B. 8 C. 9 D. 12 --- A battery manufacturer randomly tests 500 batteries and finds that 3 are defective. How many defective batteries would be expected in a shipment of 12,000 batteries? A. 120 B. 72 C. 60 D. 36 --- A large bin of mixed nuts contains peanuts, cashews, almonds, and walnuts. Sheila scoops out a bowl full of nuts and counts how many of each type she has: 17 peanuts, 9 cashews, 12 almonds, and 10 walnuts. Armando scoops out a bowl of 32 nuts. About how many should he expect to be cashews? A. 5 B. 6 C. 9 D. 18

[Done] An orange is divided into 6 equal wedges. Jody eats 1 wedge, then she eats 3 more wedges. How much of the orange did Jody eat?

[Done] Find the value of \(5p + 2q\) when \(p = 4\) and \(q = -7\).

[Done] What is the first step when you simplify [tex]5\sqrt{164}[/tex]?

[Done] What is the hypothesis of a triangle?

[Done] You are purchasing jeans and t-shirts. Jeans cost $35, and t-shirts cost $15. You plan on spending $115 and purchasing a total of 5 items. How many pairs of jeans and how many t-shirts will you buy?