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shepuryov [24]
3 years ago
14

7+1=12(a - 1) SIMPLIFY PLEASE QUICK

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0
7+1=12(a - 1)

8=12(a-1)
 

\dfrac{8}{12}=a-1 

\dfrac{2}{3} = a-1 

\dfrac{2}{3}+1=a 

\dfrac{5}{3} = a
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AM is a median in △ABC (M∈ BC ). A line drawn through point M intersects AB at its midpoint P. Find areas of △APC and △PMC, if A
Snowcat [4.5K]

Answer:

The area of APC is 70m². The area of triangle PMC is 35m².

Step-by-step explanation:

Let the area of triangle ABC be x.

It is given that AM is median, it means AM divides the area of triangle in two equal parts.

\text{Area of }\triangle ACM=\text{Area of }\triangle ABM=\frac{x}{2}    .....(1)

The point P is the midpoint of AB, therefore the area of APC and BPC are equal.

\text{Area of }\triangle APC=\text{Area of }\triangle BPC=\frac{x}{2}          ......(2)

The point P is midpoint of AB therefore the line PM divide the area of triangle ABM in two equal parts. The area of triangle APM and BPM are equal.

\text{Area of }\triangle APM=\text{Area of }\triangle BPM=\frac{x}{4}        .....(3)

The area of triangle APM is 35m².

\text{Area of }\triangle APM=\frac{x}{4}

35=\frac{x}{4}

x=140

Therefore the area of triangle ABC is 140m².

Using equation (2).

\text{Area of }\triangle APC=\frac{x}{2}

\text{Area of }\triangle APC=\frac{140}{2}

\text{Area of }\triangle APC=70

Therefore the area of triangle APC is 70m².

Using equation (3), we can say that the area of triangle BPM is 35m² and by using equation (2), we can say that the area of triangle BPC is 70m².

\triangle BPC=\triangle BPM+\triangle PMC

70=35+\triangle PMC

35=\triangle PMC

Therefore the area of triangle PMC is 35m².

8 0
4 years ago
Hello friends! <br> Can anyone of you solve this? <br> so please solve
attashe74 [19]

Step-by-step explanation:

each point should be at a 2. the center is 0,0

6 0
3 years ago
Pls help. First answer marked as brainliest
Misha Larkins [42]
-2; 3-5= -2 or -5 - (-3)

-1; 4-5 or -5 - (-4) = -1

-5; -6 - (-1)= 1-6= -5

5 0
3 years ago
What are the partial products of 42×5
ale4655 [162]
The partial would be
40x5=200
2x5=10
210
Your just breaking them apart
8 0
3 years ago
6x -2x3 + 10x+2x3+7x4 simply
zmey [24]
(((6x-(2*(x3)))+10x)+(2*(x3)))+7x4 \\ \\ Then \ we \ simplify \ it \ down \ more. \\ \\   (((6x-(2*(x^3)))+10x)+2x^3)+7x^4 \\ \\ then \ we \ would \ then \ pull \ out \ the \ like \ factors . . . . \\ \\  7x^4 + 16x  =   x * (7x^3 + 16) \\ \\

Your final answer: \boxed{\bf{  x *(7x^3 + 16)}}
4 0
3 years ago
Read 2 more answers
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