Approx. 144 mileswe can find this length by use of pythagorean's threorom. we use it because there's a 90 degree angle in the triangle, first we go due north, then turn due west.
<span>
+
=
, where a & b and the lines attached to the right angle, and c is the hypotenuse, also the length we're looking for.
+
=
14400 + 6400 =
20800 =
c =
≈ 144.2
</span>
Answer:27
Step-by-step explanation:Substitute the numerals for the variables within the parentheses. 2+3+4=9. Then, multiply that by the coefficient outside of the parentheses. 3*9=27
Let's simplify step-by-step.<span><span><span>a+7b</span>−<span>10ab</span></span>+a</span><span>=<span><span><span><span>a+7b</span>+</span>−<span>10ab</span></span>+a</span></span>Combine Like Terms:<span>=<span><span><span>a+7b</span>+<span>−<span>10ab</span></span></span>+a</span></span><span>=<span><span><span>(<span>−<span>10ab</span></span>)</span>+<span>(a+a)</span></span>+<span>(7b)</span></span></span><span>=<span><span><span>−<span>10ab</span></span>+2a</span>+7b</span></span>Answer:<span>=<span><span><span>−<span>10ab</span></span>+2a</span>+7b</span></span>
True, because either way you are subtracting 7 from 15
