1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
TiliK225 [7]
3 years ago
13

Pls help

Mathematics
2 answers:
sweet [91]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Given

x² + 2x + 8 ( to find the solutions equate to zero )

x² + 2x + 8 = 0 ( subtract 8 from both sides )

x² + 2x = - 8

To solve we can use the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(1)x + 1 = - 8 + 1

(x + 1)² = - 7 ( take the square root of both sides )

x + 1 = ± \sqrt{-7} = ± i \sqrt{7}

Subtract 1 from both sides )

x = - 1 ± i \sqrt{7}

astra-53 [7]3 years ago
4 0

Answer:

2+i times the square root of 7

You might be interested in
If the odds against a student receiving an A grade in a mathematics class are 7 to 3, what is the
katovenus [111]

Answer:

70%

Step-by-step explanation:

Since it can't go over 100%, and our numbers are 7 and 3, they are 70% and 30%, which add up to 100%.

4 0
2 years ago
Which statement is NOT true in the equation y = 9x?
slamgirl [31]

Answer:

dhdbdudbdudbdne d ieh eue

7 0
3 years ago
Mateo makes 6 loaves of banana bread. He sells 2/3 of the loves of bread at the bake sale. Which expression represents how many
Lesechka [4]

Answer: 6 * 2/3

Step-by-step explanation:

7 0
3 years ago
Help me please thanks
Natalka [10]

Answer: All real numbers

Step-by-step explanation: If you plug in any number, it will work. 4(a+3) = 12+4a. a=-3  0=0


6 0
3 years ago
Read 2 more answers
DeShawn pays 8$ for 12 pounds of sugar. What is the price per pound of sugar
Serhud [2]

Answer:

DeShawn pays .67 cent per pound of sugar

3 0
2 years ago
Other questions:
  • You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?
    14·1 answer
  • A rectangle has an area of 90 square centimeters and a height of 12.5 centimeters. What is the length of the base?
    15·1 answer
  • I need to know what X is?
    6·1 answer
  • on a recent survey, 90% of those surveyed indicated they preferred walking to running. If 130 people preferred running to walkin
    10·1 answer
  • Mr. Smith but seven tickets to the puppet show and spent a total of $43. Adult tickets cost nine dollars and children six ticket
    9·1 answer
  • Jen and Nikki are making bracelets to sell at the local market. They determined that each bracelet would have eight beads and tw
    15·1 answer
  • Freeeee points
    8·1 answer
  • A bookstore sells 3 books for $42. Which table represents the relationship between number of books and the total price?
    10·2 answers
  • Tim is running extremely late and has just 5 minutes to return his rental car to the agency. The fuel tank in the car is half em
    8·1 answer
  • The length of a rectangle is a inches. Its width is 5 inches less then the length. Find the area and perimeter of the rectangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!