From the set {-252, -64, 64}, use substitution to determine which value of x makes the equation true.
1 answer:
9514 1404 393
Answer:
x = 64
Step-by-step explanation:
I find it easier to solve the equation, which requires 1 operation. Substituting 3 numbers requires 3 operations, so is 3 times the work. (I'm basically lazy.)
4x = 256 . . . . given
x = 256/4 = 64 . . . . the last of the listed values
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Alternatively, you can let a graphing calculator or spreadsheet try the list of values for you. That result is attached.
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Since you know the rules of signed multiplication, you know that x must be positive. Only one answer choice is positive, so you really only need to try one number.
4(64) = 256 . . . . true, so x = 64
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*see attachment showing the two polygons in a grid.
Answer:
No, PQRST is not a scale copy of ABCDE because we the sides are not increased proportionally.
Step-by-step explanation:
A polygon can be said to be a scaled copy of another polygon, if the the same scale factor is used in scaling every segment of the preimage or original image to get the length of the corresponding segments of the scale copy or image. In order words, all segments must be scaled proportionally.
Polygon PQRST, which is the new image, has different scale factors used in scaling the various segments of the preimage. In simple terms, the sides of PQRST were not increased proportionally. Therefore, PQRST is not a scaled copy of ABCDE.
Given equation of hyperbola is
Given hyperbola is the horizontal hyperbola
The standard form of the horizontal hyperbola is
When we compare these two equations, we get
h = 1, a = 5 , k = -3 and b = 3
Length of the transverse axis = 2a
Plug in the value of 'a' as 5
So,Length of the transverse axis = 2(5) = 10