Mathematics, 03.08.2019 04:30 JohnJamesPaksitani
Consider the given vector equation. r(t) = 2eti + 3e−tj (a) find r'(t). r'(t) = < 2et,−3e−t> (b) sketch the plane curve together with the position vector r(t) and the tangent vector r'(t) for the given value of t = 0.
Answers: 1
Mathematics, 21.06.2019 17:00
Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?
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Mathematics, 21.06.2019 17:40
Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =
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Mathematics, 21.06.2019 19:10
Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15
Answers: 1
Mathematics, 22.06.2019 00:30
I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?
Answers: 1
Consider the given vector equation. r(t) = 2eti + 3e−tj (a) find r'(t). r'(t) = < 2et,−3e−t>...
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