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MaRussiya [10]
3 years ago
12

Evaluate 8x^2 + 2x + 5, when x =7

Mathematics
1 answer:
bixtya [17]3 years ago
3 0

Answer:

432

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

8x² + 5x + 5

x = 7

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                8(7)² + 5(7) + 5
  2. Evaluate exponents:                                                                                         8(49) + 5(7) + 5
  3. Multiply:                                                                                                             392 + 35 + 5
  4. Add:                                                                                                                 427 + 5
  5. Add:                                                                                                                 432
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Because Bernard has some health issues, he must pay 15% more for life insurance. About how much more annually will a $115,000 10
olga2289 [7]

From the given table, the annual premium rate as a percentage of value insured a person at age 35 has to pay is 0.14%.

  • The amount more annually a $115,000 10-year term insurance at age 35 cost Bernard than someone of the same age without health issues is option d. <u>$24</u>

Reasons:

The data in the table are presented as follows;

\begin{tabular}{|c|c|c|}Age&Annual Insurance Premiums (per \$1,000 of face value)&\\&10-Year Term &\\&Male&Female\\35&1.40&1.36\\40&1.64&1.59\\45&2.07&2.01\end{array}\right]

From the above table, we have that the amount a 35 year old without health issues will pay per $1,000 is $1.40

Therefore, the amount to be paid for $115,000 is 115 × $1.4 = $161

The amount Bernard pays = 15% more = 1.15 × $161 = $185.15

Therefore;

The amount more Bernard has to pay = $185.15 - $161 = $24.15 ≈ <u>$24</u>

Learn more about insurance premiums here:

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8 0
2 years ago
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Please help I got the answer wrong-
puteri [66]

Answer:

x {}^{2}  = 150

Step-by-step explanation:

What I did was

5 \times 5 = 25

then I did

5 \times 5 = 25 \times 5 = 150

and I'm hoping 150 is the answer. HOPE THIS HELPED

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3 years ago
A bag contains 5 red marbles and 4 green marbles. What is the probability of choosing a red marble then a green marble, without
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3 years ago
Ticket for football final selling well, on Thursday 4/7 of the tickets are sold, on Friday 1/4 of the tickets are sold, What fra
sergij07 [2.7K]

Answer:

5/28

Step-by-step explanation:

1/1 represents the whole amount of tickets.

4/7 are sold on Thursday.

an additional 1/4 are did on Friday.

fraction of available tickets on Saturday are therefore

1/1 - 4/7 - 1/4 = 4/1 - 16/7 - 1/1 = 28/1 - 16/1 - 7/1 = 5/1

that means out of 28 equal parts of the total number of tickets 16+7 = 23 parts have been sold.

so, there are only 5 out of the total 28 parts available on Saturday, and the fraction of available tickets is therefore 5/28.

we could have also tried to bring both fractions to the same denominator, and found that this is 28.

and then

4/7 + 1/4 = 4/4 × 4/7 + 7/7 × 1/4 =

= 16/28 + 7/28 = 23/28

and the whole is 28/28.

so we have 28/27 - 23/28 = 5/28 left.

surprise, surprise, it is the same result ...

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2 years ago
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