<span>Step 1. Let x be the number and 1/x be its reciprocal.
Step 2. Then, since the sum of a number and its reciprocal is 25/12.
Step 3. Multiply 12x to both sides of the equation to get rid of the denominators.
Step 4. Subtract 25x to put the equation in quadratic form
</span>
Let the first term be a(0). Then the formula for a(n) is a(0)-18(n-1).
Check: What's the first term? Let n = 1: a(1) = a(0)-18(1-1) = a(0) (correct)
What's the second term? Let -n =2: a(2) = a(0)-18(2-1) = a(0) - 18
and so on.
19 * 42 + 19 * 58 =
19(42 + 58) =
19 * 100 =
1900
The answer to -2(x-8) is 16-2x
Answer:
12
Step-by-step explanation:
=> √16 • √9
=> Take square roots
=> 4 • 3
=> 12