Let's simplify step-by-step. <span><span><span>−<span>3<span>(<span><span><span>4x</span>−<span>5y</span></span>+6</span>)</span></span></span>+<span>8x</span></span>−9</span>
<span />Distribute:<span>=<span><span><span><span><span><span><span> (<span>−3</span>)</span><span>(<span>4x</span>)</span></span>+<span><span>(<span>−3</span>)</span><span>(<span>−<span>5y</span></span>)</span></span></span>+<span><span>(<span>−3</span>)</span><span>(6)</span></span></span>+<span>8x</span></span>+</span>−9</span></span><span>=<span><span><span><span><span><span><span> −<span>12x</span></span>+<span>15y</span></span>+</span>−18</span>+<span>8x</span></span>+</span>−9</span></span>
<span><span /></span>Combine Like Terms:<span>= <span><span><span><span><span>−<span>12x</span></span>+<span>15y</span></span>+<span>−18</span></span>+<span>8x</span></span>+<span>−9</span></span></span><span>=<span><span><span> (<span><span>−<span>12x</span></span>+<span>8x</span></span>)</span>+<span>(<span>15y</span>)</span></span>+<span>(<span><span>−18</span>+<span>−9</span></span>)</span></span></span><span>=<span><span><span> −<span>4x</span></span>+<span>15y</span></span>+<span>−27</span></span></span>
<span><span><span /></span></span>Answer <span>=<span><span><span> −<span>4x</span></span>+<span>15y</span></span>−<span>27</span></span></span>
Answer:
9 boys
Step-by-step explanation:
15/5
=3
3*3
=9
67 meters , don’t forget the meters
d/dx √x/√(x + 1)
= d/dx √[x/(x + 1)]
= d/dx [x/(x + 1)]^(1/2)
= (1/2)[x/(x + 1)]^(- 1/2)
= (1/2)[x/(x + 1)]^(- 1/2) * (x + 1)^(-2)
Explanation:
√a/√b = √(a/b)
√x = x^(1/2)
Chain rule:
d/dx f(g(... w(x))) = f’(g(... w(x))) * g’(... w(x)) * ... * w’(x)
Quotient rule:
d/dx f(x)/g(x) = [f’(x)g(x) - g’(x)f(x)]/[g(x)]^2
He has a total of 6 chances. hope this helps(brainliest???)