Mathematics, 19.08.2019 02:50 AdoNice
Which choice represents the simplified form of the expression below and the values of x for which it is defined?
√7x^3 divide by √x
a. x√2x when x> 0
b. x√7 when x< 0
c. x√7 when x> 1
d. x√7 when x> 0
Answers: 2
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Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.
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Mathematics, 22.06.2019 00:00
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 bsuppose 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 cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?
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Mathematics, 22.06.2019 00:00
How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?
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