
the decimals are commas and the double decimal is a real decimal
Step-by-step explanation:
an = a1 + 4×[2^(n -1) - 1]
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Answer:
-15 + x
Step-by-step explanation:
147/100
= 1 47/100
100 is the percent out of
and 147 is the percent.
Answer:
see explanation
Step-by-step explanation:
Supplementary angles sum to 180° , then
x + y = 180 , that is
y + y = 180 ( multiply through by 3 to clear the fraction )
y + 3y = 540
4y = 540 ( divide both sides by 4 )
y = 135°