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MATH SOLVE
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Let V denote the set of ordered triples (x, y, z) and define addition in V as inR3.For each of the following definitions of scalar multiplication, decide whether V is a vector space.(a) a(x,y,z)=(ax,y,az)(b) a(x,y,z)=(ax,0,az)(c) a(x,y,z)=(0,0,0)(d) a(x,y,z)=(2ax,2ay,2az)
General
2 months ago
Beth read a total of 12 books over 7 months.If Beth has read 84 books so far, how many months has she been with her book club?Solve using unit rates.
General
2 months ago
Consider the following binomial experiment. The probability that a green jelly bean is chosen at random from a large package of jelly beans is 2/5. If Sally chooses 13 jelly beans, what is the probability that at most two will be green jelly beans?a) 0.0349b) 0.3100c) 0.0579d) 0.9421e) 0.5000
General
2 months ago
Toys for boys and for girls are donated to a benefit event by two groups. The Lakeville Do-Gooders donated 5 toys for boys and 7 for girls. The Southside Champions Club donated 6 toys for boys and 5 for girls. The master of ceremonies pulls the first toy out of a bin and it’s a toy for a boy. Find the probability that it was donated by the Do-Gooders.
General
2 months ago
A cable network offers members a Basic plan for $7.31 per month. For $3.00 more per month, the cable network offers a Standard plan, which includes HD movies. During one week, 280 new subscribers paid a total of $2286.80 for their plans. How many Basic plans and how many Standard plans were purchased?
General
2 months ago
The label on 1-gallon can of paint states that the amount of paint in the can Is sufficient to paint at least 400 square feet (on average). Suppose the amount of coverage Is approximately normally distributed, and the overall standard deviation of the amount of coverage is 27 square feet. A random sample of 16 cans yields the sample mean amount of coverage of 390 square feet. Test the claim on the label at a 5% level of significance. Enter the test statistic in the first box and your decision in the second box (0 if you reject and 1 if you don't (i.e if you accept) Find the p value of the test in part (a)
General
2 months ago
Use the drop-down menus to complete the statements about the function p(x) = x(x - 1)+1.The value of a is .The value of b isThe value of cisThe value of the discriminant isThe quadratic function will intersect the x-axis times.
General
2 months ago
a bag contains 10 white gold balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped golf balls to remain the same how many of each should he add>
General
2 months ago
A group consists of seven men and seven women. Four people are selected to attend a conference.a. In how many ways can four people be selected from this group of fourteen?b. In how many ways can four women be selected from the seven women?c. Find the probability that the selected group will consist of all women.a. The number of ways to select four people from the group of fourteen is nothing.b. The number of ways to select four women from the group of seven women is nothing.c. The probability is nothing.(Type an integer or a simplified fraction.)
General
2 months ago
The graph of function f is shown on the coordinate plane. Graph the line representing function g, if g is defined as shown below. G(x)=1/2f(x+2)
General
2 months ago
Clara's savings account has an APR of 10.95% calculates interest daily and pays interest at the end of the month if during the month of september her balance was $700 for the first 10 days of the month, $1900 for the next 10 days of the month, and $1400 for the last 10 days of the month, how much total interest did clara earn in september A. $12.78B. $11.20C. $12.00D. $11.30
General
2 months ago
Read the word problem. Cate has 10 dolls. Shelayna has 3 times as many dolls as Cate. How many more dolls does Shelayna have compared to Cate? What operations are needed to solve this word problem, and in what order should they be used? addition and subtraction, in that order addition and division, in that order division and subtraction, in that order multiplication and subtraction, in that order
General
2 months ago
simple interest = P × r × tJoe borrowed $900 from Sam for six months. How much will Sam earn if he charges Joe a simple interest rate of 4 percent?
General
2 months ago
“Lines that appear to be tangent are tangent. O is the center of the circle. What is the value of x?”
General
2 months ago
Read the word problem. George has 2 times the amount of points that is 4 less than his sister’s. His sister has 16 points. How many points does George have? What operations are needed to solve this word problem, and in what order should they be used? addition and subtraction, in that order addition and multiplication, in that order subtraction and division, in that order subtraction and multiplication, in that order
General
2 months ago
Divide. (18x^3+12x^2-3x)/6x^2A)x^2+x-1/2xB)3x+2C)3x+2 -1/2xD)3x -1/2xDivide.(2x^3-x^2-24x+12)/(2x-1)A)x^2-1B)x^2-12C)2x-1D)x^2-1/2x-12 Can anybody help?
General
2 months ago
The graph of f(x) is shown below.(First image below)If g(x) and f(x) are inverse functions, which graph represents g(x)?A. 2nd Graph belowB. 3rd Graph belowC. 4th Graph belowD. 5th Graph below
General
2 months ago
A system of inequalities is graphed below. The variable x represents the number of cans someone is buying, and y represents the number of bottles. Conditions on the maximum amount of total weight and volume lead to two of the inequalities.Which descriptions correspond to solutions of this system?7 cans and 140 bottles12 cans and 40 bottles8 cans and 120 bottles9 cans and 70 bottles
General
2 months ago
For the level 3 course, exam hours cost twice as much as workshop hours, workshop hours cost twice as much as lecture hours. How much are lectures per hour?
General
2 months ago
Из листа картона длиной 35 см и шириной 20 см Маша вырезала четыре квадрата площадью 1 дм2 каждый.Найди площадь остатка картона.Ответ вырази в дм 2
General
2 months ago
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