Where is the figure, i cant see it in this your question, you can rewrite the quest.
Answer:
x=5
Step-by-step explanation:
A number to the fourth power decreased by 600 is 25
x^4-600=25
Step 1- Add To Both Sides
x^4-600=25
+600+600
A number to the fourth power decreased by 600 is 25
Step 2- Find square root
x^4=625
x=5
Answer:
B. 31°; 106° and 43°.
Step-by-step explanation:
1) the rule is:
(5x-7)+(3x+1)+(11x-4)=180°;
2) if to solve this equation, then x=10°;
3) if x=10, then after the substitution the answer is 43;31;106.
12=75%
more =100%
100/75×12
=16
