Answer:
a=7, b=14
Step-by-step explanation:
a. 2/6=x/21
cross multiply=
2×21=x×6
then solve
42=6x
divide both sides by 6
x=42/6=<u>7</u>
b. 150/84=25/x
cross multiply=
84×25=150×x
then solve
2100=150x
divide both sides by 150
x=2100/150=<u>1</u><u>4</u>
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Answer:
-18a^8
Step-by-step explanation:
Answer:
2.4 cookies
Step-by-step explanation:
Just divide
Answer:
1975 Thomas Jefferson
Step-by-step explanation:
From the odd-degree terms, take out one copy and rewrite the series as


Then if |<em>x</em>| < 1, we can condense this to

Since the series we invoked here converge on -1 < <em>x</em> < 1, so does this one.