Answer:
The Answer is B
Step-by-step explanation:
I just did the test
Step-by-step explanation:
12/18=2/3
2/3×100%=66.67%
12/24=1/2
1/2×100%=50%
12/30=2/5
2/5×100%=40%
12/48=1/4
1/4×100%=25%
Answer:
a.) a² + b² + c ² + 2ab + 2ac + 2bc
b.) a² + b² + c² - 2ab - 2 ac + 2bc
c ) a² + b² + c² + 2ab - 2ac - 2bc
d.) a² + b² + c² - 2ab + 2ac - 2bc
Step-by-step explanation:
- Use ( a + b + c )² = a² + b² + c² + 2 × ab + 2 × ac + 2 × bc to expand all these expression
a) ( a + b + c )²
= a² + b² + c² + 2 × ab + 2 × ac + 2 × bc
= a² + b² + c ² + 2ab + 2ac + 2bc
b.) ( a - b - c )
= a² + ( - b )² + ( - c)² + 2a ( -b ) + 2a(-c) + 2(-b)(-c)
= a² + b² + c² - 2ab - 2 ac + 2bc
c.) ( a + b - c )²
= a² + b² + ( -c)² + 2ab + 2a ( - c) + 2 b( -c)
= a² + b² + c² + 2ab - 2ac - 2bc
d.) (a - b + c ) ²
= a² + ( -b)² + c² + 2a(-b) + 2ac + 2c( -b)
= a² + b² + c² - 2ab + 2ac - 2bc
If you change 3^x to 3^(x+4) you get
Evaluate for <span>x=3</span><span><span>(<span>33</span>)</span><span>(<span>3+4</span>)</span></span><span><span>(<span>33</span>)</span><span>(<span>3+4</span>)</span></span><span>=<span>189
</span></span>Evaluate for <span>x=4</span><span><span>(<span>34</span>)</span><span>(<span>4+4</span>)</span></span><span><span>(<span>34</span>)</span><span>(<span>4+4</span>)</span></span><span>=<span>648
</span></span>Evaluate for <span>x=x</span><span><span>(<span>3x</span>)</span><span>(<span>x+4</span>)</span></span><span><span>(<span>3x</span>)</span><span>(<span>x+4</span><span>)
</span></span></span>Evaluate for <span>x=<span>3x</span></span><span><span>(<span>3<span>3x</span></span>)</span><span>(<span><span>3x</span>+4</span>)</span></span><span><span>(<span>3<span>3x</span></span>)</span><span>(<span><span>3x</span>+4</span><span>)
</span></span></span>Evaluate for <span>x=<span>x+4</span></span><span><span>(<span>3<span>x+4</span></span>)</span><span>(<span><span>x+4</span>+4</span>)</span></span><span><span>(<span>3<span>x+4</span></span>)</span><span>(<span><span>x+4</span>+4</span><span>)
i did everything and idk wat u mean still .-. srry</span></span></span>