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General
How many solutions does this equation have?2(2x− 1) = (x+ 1) + 3(x− 1)
General
3 months ago
Find the derivative of the vector function r(t)=ta×(b+tc)r(t)=ta×(b+tc), where a=⟨5,3,−4⟩a=⟨5,3,−4⟩, b=⟨−4,1,1⟩b=⟨−4,1,1⟩, and c=⟨−3,2,−4⟩c=⟨−3,2,−4⟩.
General
3 months ago
A force of 8 N makes an angle of π/4 radian with the y-axis, pointing to the right. The force acts against the movement of an object along the straight line connecting (1, 3) to (4, 5).a. Find a formula for the force vector Fb. Find the angle θ between the displacement direction D = (4 − 1)i + (5 − 3)j and the force direction F. (Round your answer to one decimal place.)c. The work done is F · D or, equivalently, ||F||||D||cos(θ). Compute the work from both formulas and compare
General
3 months ago
My roommate and I are having a house party. We invite 15 couples. At the party, everyone must shake hands with everyone whom they do not already know. At the end of the party, I can't remember the number of people I have met, so I go ask all other people at the party how many hands they have shaken, and they each tell me a different number. You do not shake hands with yourself or your 'partner' (the person with whom you came). How many hands did my roommate shake?
General
3 months ago
Helena wrote the equation using point-slope form for the line that passes through the points (5, 1) and (3, 5). Analyze the steps of her work using the point-slope form to write the equation. equation In which step did Helena make an error? In step 1, she substituted the x values for y and the y values for x. In step 2, she didn’t use an x and y from the same coordinate pair. In step 3, she solved for the wrong variable. Helena did not make an error.
General
3 months ago
The number of cell phones in the United States was 1.2 million in 1995. if the annual increase in the number of phone per year is 21%. In what year will there be 1 billion cell phones in use
General
3 months ago
Simplify using disterbutive property of mutiplication (3/8 × -4/5) + (7/9 × 3/8) - (3/8 × -8/10)PLEASE HELP ME FAST
General
3 months ago
Write the equation of the line that passes through (1, 5) and (−2, 14) in the slope-intercept form.a- y = 3x + 2b- y = 3x + 8c-y = −3x − 2d- y = −3x + 8
General
3 months ago
Joan Has 2 Silimar Rectangular-Shaped Pieces That She Is Using For Her Quilt. One Has Width 4 Inches And Length 6 Inches And The Other Has A Width Of 6 Inches. What Is The Perimeter Of The Larger Rectangular Piece?
General
3 months ago
Jack needs a final average of at least a 90 to qualify for a scholarship. He earned a 93, 85, and 88 on the first three tests. What is the minimum score he can earn on the final test to qualify for the scholarship?Question 23 options:He needs at least an 86 on the final test.He needs at least a 90 on the final test.He needs at least a 92 on the final test.He needs at least a 94 on the final test.He cannot earn a high enough grade to qualify for a scholarship.
General
3 months ago
The taxi ride in Detroit cost $11 for 2 miles and $18 for 4 miles. Let x be the number of miles and y be the total fare. A. Write an equation in slope intercept form that represents the situation. B. What is the initial fee? C. What is the price per mile? D. How much would it cost to take the same taxi for 10 miles?
General
3 months ago
A ball is tossed up in the air at an initial rate of 50 ft/sec from 5 ft off the ground.a. What type of function models the height (ℎ, in feet) of the ball after tt seconds?b. Explain what is happening to the height of the ball as it travels over a period of time (in tt seconds).What function models the height, ℎ (in feet), of the ball over a period of time (in tt seconds)?
General
3 months ago
- The population of Groverdale is553,000. The population of Tittlehookis 535,841. Alaina said the populationof Groverdale is greater than thepopulation of Tittlehook. Is Alainacorrect? Construct a math argumentto support your answer.
General
3 months ago
Shelby mixes a 25% bleach solution with 5 cups of a 10% bleach solution, resulting in a 20% bleach solution. The tableshows the amount of each solution used.Bleach SolutionCupsBleachConcentrationTotal10% Bleach50.100.525% Bleach0.250.25xMixture0.20What is the value of x?What is the value of x?
General
3 months ago
The length of a rectangular room is 5 feet more than its width. The perimeter of the room is66 feet. Let L represent the length of the room and W represent the width in feet. The system of equationsL=W + 5can be used to represent this situation. What are the room's dimensions?166 = 2L + 2W
General
3 months ago
The function f(x) = One-sixth (two-fifths) Superscript x is reflected across the y-axis to create the function g(x). Which ordered pair is on g(x)? (negative 3, StartFraction 4 Over 375 EndFraction) (negative 2, StartFraction 25 Over 24 EndFraction) (2, StartFraction 2 Over 75 EndFraction) (3, negative StartFraction 125 Over 48 EndFraction)
General
3 months ago
Write the equation the line in slope-intercept form. Slope is 3, and (1, 5) is on the line. m = ? To find b (the y-intercept), substitute ? in for m, ? in for x and ? in for y into y=mx+ b. b = ? The equation should be y= ? x + ?
General
3 months ago
plz help me idk what t0o do
General
3 months ago
The product of two numbers is 713. The first number is 9 more than the second number. Which equation can be used tofind x, the greater number?Ox(x - 9) = 713O x(x + 9) = 713O x - 9 = 713O x2 + 9 = 713
General
3 months ago
30 POINTS! What is the first step to solve the following system of equations using substitution?
General
3 months ago
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