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Nitella [24]
3 years ago
14

Complete the square of x^2-2x+17

Mathematics
1 answer:
Ratling [72]3 years ago
8 0

Answer:

(x - 1)² + 16

Step-by-step explanation:

  • x² - 2x + 17 = 0

Subtract 17 from both sides of the equation.

  • x² - 2x = -17

Use the formula (b/2)² to see which number you have to add to both sides.

  • (-2/2)² = 1

Add 1 to both sides of the equation.

  • x² - 2x + 1 = -17 + 1

Factor the left side of the equation into a perfect square.

  • (x - 1)² = -16

Add 16 to both sides of the equation.

  • (x - 1)² + 16

(x - 1)² + 16 is the equation in standard form (x² - 2x + 17) rewritten by completing the square.

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An engineer estimated the weight of a steel beam to be 600 pounds. The actual weight of the beam was 639 pounds. Find the absolu
mario62 [17]

Answer:

Absolute error = 39

Percent Error = 6.10%

Step-by-step explanation:

Actual value = 639 pounds

Observed Value = 600 pounds

The formula to find absolute error is:

Absolute Error = Actual value - Observed Value

                        = 639 - 600

                        = 39

The formula to find Percent error is:

Percent Error = (Actual value - Observed Value / Actual value)*100

                       = (639 - 600/639)*100

                       = 6.10%

                 

7 0
3 years ago
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You are paid 82.50 for 7 1/2 hours of work what is your rate of pay
ira [324]
I'm pretty sure that the answer would be 11.
8 0
4 years ago
A Store owners offers a discount of 20% off the regular price of all jackets. Jessica has a coupon that gives her an additional
Deffense [45]

Answer:

$63

Step-by-step explanation:

The store is 20% off, Jessica has a coupon that is 5% off add that together and it's 25% off. $84 - 25% = $63

3 0
3 years ago
Factor the polynomial completely
Scorpion4ik [409]

Answer:

what in the holy-

Step-by-step explanation:

6 0
3 years ago
Thank you for you help
Harrizon [31]

the first simple interest will be $1.73 more than the second one.

<h3>Which is the difference between the two interests?</h3>

The loan is of $575, and there are two options:

7 years at 4.5% or 8 years at 3.9%

Remember that the simple interest formula is:

SI = (P*R*T)/100

Where:

P = principal value.

R = rate (this is the percentage per year)

T = time, in years.

Then for the first option. the interest will be:

SI = ($575*4.5*7)/100 = $181.13

For the second option we will have the interest:

SI'  =( $575*3.9*8)/100 = $179.4

The difference is:

$181.13 - $179.4 = $1.73

This means that the first simple interest will be $1.73 more than the second one.

If you want to learn more about simple interests:

brainly.com/question/20690803

#SPJ1

7 0
2 years ago
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