olivernolasco23
20.04.2020 •
Mathematics
Use your grapher to determine which of the graphs matches the polar equation r = 1 + 2 cos θ.
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Ответ:
r = 3 sin 2θ
Find: Graph that matches the polar equation Solution:
Use the polar graph type in the graphing calculator and enter the following values: 3sin (2 theta). Please see the attached image for the answer. The graph would look like butterfly wings.
Ответ:
11 + x
Step-by-step explanation:
Let's write out each of the answer choices:
A) 11x
B) 11 + x
C) 11 minus x ⇒ 11 - x
D) Negative x + 11 ⇒ -x + 11
Examine each of them. Clearly, A and D aren't the same (A is multiplication, not addition, and D has a negative x instead of a positive x). C is actually the same as D, if you switch the places of 11 and -x: 11 - x = -x = 11.
Finally, answer choice B is correct because by the Commutative Property of Addition, 11 + x = x + 11.
Hope this helps!