We know from Euclidean Geometry and the properties of a centroid that GC=2GM. Now GM=sin60*GA=

. Hence CM=GC+GM=3*

. Now, since GM is normal to AB, we have by the pythagoeran theorem that:

Hence, we calculate from this that AC^2= 28, hence AC=2*

=BC. Thus, the perimeter of the triangle is 2+4*

.
The answer is EGH and EFG
Answer:
45÷5=9-2=7 is this the equation took so long but got the right answer
The answer will be t =
average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year.
<h3>What is temperature?</h3>
Temperature is the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
<h3>TO SOLVE:</h3>

suppose
and
degree
We know, cos(x+90°) = - sin(X)
⇒
degree = -
⇒ t = 
Hence the answer will be t =
average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year.
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U = - 4 i + 1 j
v = 4 i + 1 j
| u | = √ (-4)² + 1² = √ 17
| v | = √4² + 1² = √ 17
| u + v | = √(u + v)²=
= √( u² + 2 u v + v² )= ...
cos ( u, v ) = (-16+1) / (|u| |v|) = -15/17
...= √(17 + 2 · √17 · √17 · ( -15/17) +17) =
= √ 34 - 30 = √ 4 = 2
Answer: C ) 2