\[\sum_{n=1}^{7} 2(-2)^{n-1}\]
Step-by-step explanation:
steps are in picture above.
<u>N</u><u>o</u><u>t</u><u>e</u><u>:</u><u>i</u><u>f</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>n</u><u>e</u><u>e</u><u>d</u><u> </u><u>t</u><u>o</u><u> </u><u>ask</u><u> </u><u>a</u><u>n</u><u>y</u><u> </u><u>question</u><u> </u><u>p</u><u>l</u><u>e</u><u>a</u><u>s</u><u>e</u><u> </u><u>let</u><u> </u><u>me</u><u> </u><u>know</u><u>.</u>
Answer:
y/9x
Step-by-step explanation:
symplify

Answer:
Step-by-step explanation:
4)
area of rhombus is base * height
here the base is 10 mm and height is 8 mm
using the formula: 8 * 10 = 80 mm²
5)






Answer: -108/+18 = -6
Step-by-step explanation: Multiply 18 by -6 for B then it simplifies out.