slomomotorsports
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
slomomotorsports
slomomotorsports
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
Find the unit tangent vector T(t) at the point with the given value of the parameter t. r(t) = t2 − 3t, 1 + 4t, 1 3 t3 + 1 2 t2 , t = 4.
General
2 months ago
An airplane with room for 100 passengers has a total baggage limit of 6000 lb. Suppose that the total weight of the baggage checked by an individual passenger is a random variable x with a mean value of 48 lb and a standard deviation of 22 lb. If 100 passengers will board a flight, what is the approximate probability that the total weight of their baggage will exceed the limit? (Hint: With n = 100, the total weight exceeds the limit when the average weight x exceeds 6000/100.) (Round your answer to four decimal places.)
General
2 months ago
For the hypothesis test H0: μ = 10 against H1: μ >10 and variance known, calculate the Pvalue for each of the following test statistics.(a) z0 = 2.05 (b) z0 = −1.84 (c) z0 = 0.4
General
2 months ago
If the inspection division of a county weights and measures department wants to estimate the mean amount of soft-drink fill in 2-liter bottles to within LaTeX: \pm± 0.01 liter with 95% confidence and also assumes that the standard deviation is 0.05 liter, what sample size is needed?
General
2 months ago
Players on the school soccer team are selling candles to raise money for an upcoming trip. Each player has 24 candies to sell. If a player sells for candies, a profit of $30 is made. If he sells 12 candies, a profit of $70 is made. The profit And the number of candies sold form a linear relation. What is the slope and what does it mean in this problem?
General
2 months ago
Which sequence could be described by the explicit definition: LaTeX: a_n=n^2-5a n = n 2 − 5 Group of answer choices 1,-4,4,11,116,... 1,2,3,4,5,6,... -4,-1,4,11,20,.... -4,11,116,13451
General
2 months ago
Find the probability that a randomly selected point within the circle falls in the red shaded area (square)
General
2 months ago
Which expressions are equivalent to the one below? log 2- log 8
General
2 months ago
A commonly cited standard for one-way length (duration) of school bus rides for elementary school children is 30 minutes. A local government office in a rural area randomly samples 100 elementary school children in their district and find an average one-way commute time of 38 minutes with a standard deviation of 8 minutes. Which of the following is the correct set of hypotheses for testing if the average commute time of elementary school students in this district is different than the commonly cited standard of 30 minutes? H0: x = 38; HA: μ = 30H0: μ = 30; HA: μ ≠ 30H0: μ = 30; HA: x = 38HA: μ = 30; H0: x ≠ 30H0: μ = 30; HA: μ > 30
General
2 months ago
n a poll, 51% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?" The margin of error in the poll was 3%, and the estimate was made with 95% confidence. At least how many people were surveyed? The minimum number of surveyed people was nothing. (Ro
General
2 months ago
Dakota tiled a floor with tiles that look like this:Here is her floor:What is the length of? _________________What is the length of ? ________________What is the length of? _______________What is the measure of ABC? ____________What is the measure of CAB? ____________What is the measure of ACB? _____________What is the measure of BCE? _____________What is the measure of CED? ______________What is the total length of Dakota’s floor? _____________What is the total width of Dakota’s floor? ____________
General
2 months ago
During each minute of a comedy show, Carlin laughs 555 times. Carlin watches 333 comedy shows every day, and each show is 404040 minutes long. How many times does Carlin laugh every day due to the comedy shows?
General
2 months ago
Does the equation x2 - 4x + y2 = -3 intersect the x-axis?
General
2 months ago
Annabella spends $2.25 per gallon on gas at the gas station. After driving a certain distance, she stops at a second gas station and spends $2.15 per gallon on gasoline. Annabella can express her average cost per gallon of gasoline as 2.25x+2.15(x+5)/2x+5 .
General
2 months ago
Leroy's total employee compensation was $50,150 last year. His total job expenses for traveling and for professional developement for the year were $3,500. Which of the following represents his total job benefits? a.$53,650b.$50,150c.$46,650d.$47,650Answer is : a.$53,650 100% correct
General
2 months ago
Need help ASAP WILL GIVE TEN POINTS FIVE QUESTIONS-1 What is the solution to the inequality?6x−5>−29 A x>−4 B x<4 C x>4 D x<−4 2What is the solution to the inequality?−4x−8>−20A x>3 B x>−3 C x<−3 D x<3 3Solve.−4.2y+2.1>−2.52 Drag and drop a number or symbol into each box to show the solution.< > 0.1 1.1 4.62 −4.62 Y.(number) (number)4 Solve.−12x+13>35Drag and drop a number or symbol into each box to show the solution.< > −8/15 −4/15 4/15 8/15x (number) (number)What is the solution set?−2.8x+5.6<8.4Enter your answer in the box.x (answer) plz help and ty
General
2 months ago
What pair of numbers has the geometric mean of 44
General
2 months ago
Find the angles of the rhombus if the ratio of the angles formed by the diagonals and the sides is 4:5.
General
2 months ago
consider the following system with a solution (1,3) equation 1 of the system 2x+y=5 equation 2 of the system x-2y=-5 prove that replacing the first equation with the sum of the equation and a multiple of the other produces a system with the same solution
General
2 months ago
What measurements of a cone can be found if you know the volume and height? Explain how to apply the formula.
General
2 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
Next