The answer:
according to the image, the main theorem concerning right triangle similarity is as follow:
the altitude to the hypotenuse of a right triangle divides the triangle into two triangles that are similar to the original triangle and each other,
in our case, KL is the altitude, and by applying theorem, we get three triangles that are similar:
therefore:
<span>△JKL ~ △JKM
</span><span>△JKM ~ △JKM
</span><span>△JMK ~ △KML</span>
Answer:
on the bottom equation you can subtract 1 from both sides, x = 2y+1 so you substitute that in for x on the other equation, 7(2y+1) - 2y = 1 or 14y + 7 -2y = 1 then 12y = -6 y = -1/2 which you put back into the other equation, 2(-1/2) = x -1 so -1 = x - 1 then x = 0, the answer is (0, -1/2)
Test scores could be 90,89,88
100+85+90+89+88= 452
452/5=90.4
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
You start with 5x+8=10. You want all your constants on one side and variables on the other. So to do that you subtract 8 from both sides, giving you 5x=2. Next you have to divide each side by 2. That gives you 5x/2, or 2.5x. You then take your next equation, 10x+16 and input x. 10(2.5)+16=41.
Your answer is 41 or 10x+16=41
0=-\frac{233}{4}
sides are not equal