Simplify and identify the domain -4/4x+8 times 5(x+3)x^2-9
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Hello,
R\{-2} all reals excepted -2 ====================
What is r+(−5r) simplified?
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Answer:
-4r
Step-by-step explanation:
Could anyone help me understand this problem?"Find the perimeter of the figure, where AC=26, AD=BF, and D is the midpoint of AC. Round your answer to the nearest tenth."
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It seems you will have to use a LOT of trigonometric calculations. Line AC = 26 Line AD = 13 = Line DC = 13 Line BF = 13
cosine 40 = 13 (Line AD) / Line AE Line AE = 13 / 0.76604 = 16.97
tangent 40 = ED / AD = ED / 13 Line ED = 0.8391 * 13 = 10.908
Line DC =13
Angle ABC = 55 degrees tangent(55) = 26 / AB AB = 26 / 1.4281 = 18.206
Well, that's about half the calculations. (As I said it's a lot of work).
A square has a perimeter of 12 cm. What is its area?9 cm 2 18 cm 2 36 cm 2 144 cm 2
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Hey there, the formula is A=a², and P=4a. Let's solve for a, A=1/16p²=1/16*12²=9cm², Therefore, the answer is 9 cm 2
What kind of triangle is drawn below?
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All sides of this triangle are different. No right triangle is here. So, this triangle is scalene.
Approximately how long is a leg of an isosceles right triangle that has a hypotenuse of length 14.14 cm? A. 3 cm B. 5 cm C. 7 cm D. 10 cm
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According to the fact that isosceles right triangle with the hypotenuse of 14.14 cm its cathetus should be 9.998 cm, and if we round this number we will get 10 cm. Therefore, the answer is D. 10 cm.