35 + 52 + 3(x + 2) = 180
87 + 3x + 6 = 180 ( add the like terms and use distributive property)
93 + 3x = 180
-93 -93
3x = 87
÷3 ÷3
x = 29
( the sum of all triangle angles is 180)

4 0

2 years ago

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Solve for M in the formula S= C+M. <br> A. M= S+ C<br> B. M= S - C<br> C. M= SC<br> D. M= s/c

Effectus [21]

Answer:

im pretty sure its a

Step-by-step explanation:

4 0

3 years ago

determine the length of a chord whose central angle is 75° in the circle with the radius of 12 inches.

Black_prince [1.1K]

Answer:

Step-by-step explanation:

other two sides joining center to the ends of chord=radius of circle=12 in

using cosine formula

$cos A=\frac{b^2+c^2-a^2}{2bc} \\2bc cos~A=b^2+c^2-a^2\\\angle A=75^\circ\\b=c=r=12~in\\2*12*12~cos~75=12^2+12^2-a^2\\a^2=2*12^2-2*12^2 cos ~75\\a^2=2*12^2(1-cos 75)\\a=12\sqrt{2(1-cos~75)} \approx 14.6~inches$

6 0

3 years ago

Math help please 24 points

DanielleElmas [232]

That is the Distributive property of equality

3 0

3 years ago

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