(2√5+3√7)(2√5+3√7) = (2√5)(2√5) + (2√5)(3√7) + (3√7)(2√5) + (3√7)(3√7)
(2√5+3√7)(2√5+3√7) = 4(5) + 6√35 + 6√35 + 9(7)
(2√5+3√7)(2√5+3√7) = 20 + 12√35 +63
(2√5+3√7)(2√5+3√7) = 83 + 12√35
Answer: 83 + 12√35
(m-2n)(3+m-2n) is it factored.
Answer: (-2,4)
Step-by-step explanation:
Take the average of the x-coordinates and the average of the y-coordinates
(1-5)/2=-2
(1+7)/2=4
Question 1:
By definition, the area of a regular hexagon, depending on its sides, is given by:
Where,
L: side of the regular hexagon.
Substituting values we have:
Rounding to the nearest hundredth we have:
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Answer:
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The area of a regular hexagon with a side length of 12 cm is:
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Question 2:
By definition, sides of a triangle 30-60-90 are given by:
Largest side:
Smallest side: x
hypotenuse: 2x
Therefore, since the smallest side length measures 5 cm, then the hypotenuse is:
Answer:
the length of the hypotenuse when the shorter leg is 5 cm is:
10 cm
Question 3:
The first thing you should know for this case, is that angle 30, is a notable angle.
Therefore, the values of the sine are defined for notables angles.
The notable angles are:
0, 30, 45, 60, 90
Therefore, the value of sine (30) is given by:
sine (30) = 1/2
Answer:
the exact value of sin 30 ° is:
sine (30) = 1/2
It’s 1+1 equal 11 btw I don’t know