Mathematics, 04.06.2020 13:12 unicorns110504
Two circles are concentric if they have the same center.
Which equation represents a circle that is concentric with
the circle shown but has a radius that is twice as large?
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(x - 4)2 + (- 6)2 = 4
(x-4)2 + (y - 6)2 = 16
(x - 6)2 + (-4)2 = 16
(x - 6)2 + (-4)2 = 4
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Answers: 3
Mathematics, 21.06.2019 20:40
The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?
Answers: 2
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 > ?
Answers: 1
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