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Use the discriminant to describe the roots of each equation. Then select the best description.x2 - 5x + 7 = 0double rootreal and rational rootsreal and irrational rootsnon-real roots
General
6 months ago
Which figure below would include pi in the formulas for surface area and volume?A. CubeB. Cylinder C. Pyramid D. Tetrahedron
General
6 months ago
it is: THE SUM OF THREE CONSECUTIVE NUMBERS IS 78 WHAT IS THE SMALLEST OF THREE NUMBERS?
General
6 months ago
In which example are the events dependent? A) Blake flips a coin 3 times. What is the probability that he flips heads all three times? B) Kendra has 4 alternative songs and 5 country songs on a CD. What is the probability that the first song she hears two mornings in a row is an alternative song? C) Dreanna has a standard deck of 52 cards. She draws one card from the deck and then replaces it. She then draws a second card from the deck. What is the probability that both cards are Queens? D) In Mrs. Brown's Geometry class there are 15 boys and 10 girls. The students are presenting projects to the class. If Mrs. Brown selects students at random for presentations, what is the probability that the first 2 students chosen are girls?
General
6 months ago
Consider f and c below. f(x, y, z) = yzexzi + exzj + xyexzk,c.r(t) = (t2 + 2)i + (t2 − 1)j + (t2 − 4t)k, 0 ≤ t ≤ 4 (a) find a function f such that f = ∇f.
General
6 months ago
what is the equation of the graphed line in point-slope form
General
6 months ago
The first five terms of a sequence are shown.4, 12, 36, 108, 324,Write an explicit function to model the value of the nth term in the sequence such that f(1) = 4f(n) = Please explain!(I'm doing a practice test, and I'm not sure how to do this, I need an example to help me for when I take the real test. Thank you!)
General
6 months ago
Within a computer service company, 20 percent of the male employees and 30 percent of the female employees attend night school. If 40 percent of all employees are male, what percent of all the employees attend night school?
General
6 months ago
Jerome won a school competition to design a mural for the cafeteria wall. Jerome’s scale drawing was 12 inches wide and 9 inches tall. The actual mural will be 20 feet wide. How tall will the actual mural be, in feet?
General
6 months ago
Jason made a payment of $1800 to his bank to clear his debts. He then deposited $1000 in his checking account at an annual interest rate of 6% compounded monthly. Jason made the following graph to relate the amount accumulated in his checking account in x number of years. What is the domain of the graph that Jason plotted?
General
6 months ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Jenny, who rides a moped, takes 2 hours less to travel 60 miles than Maureen takes to travel 50 miles on her bicycle. Jenny travels 10 miles per hour faster than Maureen. (Hint: speed = distance ÷ time.) Jenny’s speed is miles per hour. Maureen’s speed is miles per hour.
General
6 months ago
A bee beats its wings 250 times each second what is the average time for a single beat of a bee's wing
General
6 months ago
How would adding a score of 0 to this data affect the mean and median game score?
General
6 months ago
The top and bottom margins of a poster are 2 cm and the side margins are each 4 cm. if the area of printed material on the poster is fixed at 388 square centimeters, find the dimensions of the poster with the smallest area.
General
6 months ago
Which expression is equivalent to cos120°? ° cos240° cos300° cos420°?
General
6 months ago
What is an equation of a parabola with a vertex at the origin and directrix x=4.75?
General
6 months ago
Joe is preparing 18 hot dogs for his party. however, joe only has 12 hot dog buns. how many more hot dog buns does joe need? 6 7 5 8
General
6 months ago
In roulette, you may bet whether the number that comes up is odd (or even). (remember that 0 does not count as either odd or even.) the wager pays even money, that is, if you win, you get whatever you bet, and if you lose, you lose that same amount. what is your expected value for this bet if you bet $1?
General
6 months ago
If a couple were planning to have three children, the sample space summarizing the gender outcomes would be: bbb, bbg, bgb, bgg, gbb, gbg, ggb, ggg.a. construct a similar sample space for the possible health outcomes (using h for healthy and s for sick) of two children.b. assuming that the outcomes listed in part (a) were equally likely, find the probability of getting two healthy children.c. find the probability of getting exactly one healthy child and one sick child.
General
6 months ago
If the ratio of the sides of two squares is 3:1, what is the ratio of their perimeters?
General
6 months ago
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