the answer is 78
Step-by-step explanation:
10×7+9x-1=78
Answer:hrhdhf end b
Step-by-step explanation:
Rndjdbajrcb
Check the picture below.
so as you already know, a rhombus is a parallelogram whose sides are equal, so the distance from say (-10, 1) to either endpoint of the other diagonal must be the same.
![\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-10}~,~\stackrel{y_1}{1})\qquad \underline{(\stackrel{x_2}{-2}~,~\stackrel{y_2}{2})}\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[-2-(-10)]^2+[2-1]^2}\implies d=\sqrt{(-2+10)^2+(2-1)^2} \\\\\\ d=\sqrt{64+1}\implies \boxed{d=\sqrt{65}} \\\\[-0.35em] ~\dotfill](https://tex.z-dn.net/?f=%5Cbf%20~~~~~~~~~~~~%5Ctextit%7Bdistance%20between%202%20points%7D%20%5C%5C%5C%5C%20%28%5Cstackrel%7Bx_1%7D%7B-10%7D~%2C~%5Cstackrel%7By_1%7D%7B1%7D%29%5Cqquad%20%5Cunderline%7B%28%5Cstackrel%7Bx_2%7D%7B-2%7D~%2C~%5Cstackrel%7By_2%7D%7B2%7D%29%7D%5Cqquad%20%5Cqquad%20d%20%3D%20%5Csqrt%7B%28%20x_2-%20x_1%29%5E2%20%2B%20%28%20y_2-%20y_1%29%5E2%7D%20%5C%5C%5C%5C%5C%5C%20d%3D%5Csqrt%7B%5B-2-%28-10%29%5D%5E2%2B%5B2-1%5D%5E2%7D%5Cimplies%20d%3D%5Csqrt%7B%28-2%2B10%29%5E2%2B%282-1%29%5E2%7D%20%5C%5C%5C%5C%5C%5C%20d%3D%5Csqrt%7B64%2B1%7D%5Cimplies%20%5Cboxed%7Bd%3D%5Csqrt%7B65%7D%7D%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill)
![\bf (\stackrel{x_1}{-10}~,~\stackrel{y_1}{1})\qquad \underline{(\stackrel{x_2}{-6}~,~\stackrel{y_2}{8})}\qquad \qquad d=\sqrt{[-6-(-10)]^2+[8-1]^2} \\\\\\ d=\sqrt{(-6+10)^2+(8-1)^2}\implies d=\sqrt{16+49}\implies \boxed{d=\sqrt{65}}](https://tex.z-dn.net/?f=%5Cbf%20%28%5Cstackrel%7Bx_1%7D%7B-10%7D~%2C~%5Cstackrel%7By_1%7D%7B1%7D%29%5Cqquad%20%5Cunderline%7B%28%5Cstackrel%7Bx_2%7D%7B-6%7D~%2C~%5Cstackrel%7By_2%7D%7B8%7D%29%7D%5Cqquad%20%5Cqquad%20d%3D%5Csqrt%7B%5B-6-%28-10%29%5D%5E2%2B%5B8-1%5D%5E2%7D%20%5C%5C%5C%5C%5C%5C%20d%3D%5Csqrt%7B%28-6%2B10%29%5E2%2B%288-1%29%5E2%7D%5Cimplies%20d%3D%5Csqrt%7B16%2B49%7D%5Cimplies%20%5Cboxed%7Bd%3D%5Csqrt%7B65%7D%7D)
Answer:
Step-by-step explanation:
Using the triangle midsegment theorem, x = 5; BC = 10 units.
<h3>What is the Triangle Midsegment Theorem?</h3>
According to the triangle midsegment theorem, ED = 1/2(BA).
Given the following:
ED = x + 2
BA = 4x - 6
x + 2 = 1/2(4x - 6)
2(x + 2) = 4x - 6
2x + 4 = 4x - 6
2x - 4x = -4 - 6
-2x = -10
x = 5
BC = 2(BE)
BC = 2(x)
BC = 2(5)
BC = 10 units
Learn more about the triangle midsegment theorem on:
brainly.com/question/12234706
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