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dimulka [17.4K]
3 years ago
12

6. Which of the following is the solution set to the equation x² + 8x -15 = 5x +13?

Mathematics
1 answer:
Verizon [17]3 years ago
5 0

Answer:

The answer is A.......

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The sequence {an) is defined by ao = 1 and
otez555 [7]
<h3>Answer: 31</h3>

=======================================

Work Shown:

Use the value of a0 to find the value of a1. The idea is you double the previous value, and then add 1.

a_{n+1} = 2*(a_n) + 1\\\\a_{0+1} = 2*(a_0) + 1\\\\a_{1} = 2*(1) + 1\\\\a_{1} = 3\\\\

Which is then used to find the value of a2. Follow the same process as before (double the previous value and then add 1).

a_{n+1} = 2*(a_n) + 1\\\\a_{1+1} = 2*(a_1) + 1\\\\a_{2} = 2*(3) + 1\\\\a_{2} = 7\\\\

This is used to find a3

a_{n+1} = 2*(a_n) + 1\\\\a_{2+1} = 2*(a_2) + 1\\\\a_{3} = 2*(7) + 1\\\\a_{3} = 15\\\\

Finally we can now find a4

a_{n+1} = 2*(a_n) + 1\\\\a_{3+1} = 2*(a_3) + 1\\\\a_{4} = 2*(15) + 1\\\\a_{4} = 31\\\\

Recursive sequences like this aren't too bad if n is small, but as n gets larger, things become more tedious. For those cases, its best to try to find a closed form equation. If not, then the next best thing is using a spreadsheet to automate the process.

6 0
3 years ago
A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. 95​% confidence interval that resu
Anastaziya [24]

Answer:

z= 1.70 Since the test statistic is less than the critical​ value, we can conclude that the average length of an online video is not more than 8 minutes

8 0
2 years ago
Lori decied to save up for a trip.She put $1120 of her saving into a bank account. If she earns 2% interest how much will have a
insens350 [35]

Answer:

$1,344 is her total.

Step-by-step explanation:

0.2 x 1120 = 240 + 1120

7 0
3 years ago
I need help on the first question please will mark brainiest
Whitepunk [10]

Answer:

D. 2^{18}

Step-by-step explanation:

The expression is: (2^{6}) ^{3} * 2^{0}

For the first term: When a term with an exponent is inside parentheses with another exponent on the outside, the two exponents are multiplied by each other:

6 * 3 =  18

Now the expression looks like this: 2^{18} *   2^{0}

Any number to the power of zero is 1.

So the equation now looks like this:  2^{18} * 1

After you multiply the two terms, you end up with  2^{18}.

4 0
3 years ago
Read 2 more answers
Teresa's sugar cookie recipe calls for 2 1/3 cups of sugar. How much
djyliett [7]

Answer:

Hi, so one batch of the sugar cookie recipe calls for 2 1/3 cups of sugar. SO to make 2 1/2 batches you would have to first multiply 2 1/3 times 2, to get 4 2/3. then split 2 1/3 in half for the other half of the recipe. that would be 1 1/6. then add 1 1/6 plus 4 2/3 to get your answer of <u><em>6 cups of sugar.</em></u>

Step-by-step explanation:

Have a great day. please mark brainliest

5 0
3 years ago
Read 2 more answers
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