Answer:
Step-by-step explanation:
for IV you do 40^2+30^2=c, or 1600+ 900=c. c= 2500 and unsquare that you get 50
Answer:
<h3><u>
Step-by-step explanation:</u></h3>
- 2(x + 3.5) = -10
- => 2x + 7 = -10
- => 2x = -10 - 7
- => 2x = -17
- => x = -8.5
<h3><u>Conclusion:</u></h3>
Therefore, the answer is x = -8.5.
Hoped this helped.

Step-by-step explanation:
You divide each term by -2
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