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
2x - y = 0<br> 4x - y = 0
Delicious77 [7]

Answer:

what's the question here ?

6 0
2 years ago
Read 2 more answers
Which of the following does not describe a rigid motion transformation
patriot [66]

Answer:

The answer to this question is dilating the figure by a scale factor of one half.

7 0
3 years ago
(–2) + 6 + 1 = 1 + 6 + (–2) what property is this
jeka94
(–2) + 6 + 1 = 1 + 6 + (–2) is B.Commutative Property
8 0
3 years ago
Read 2 more answers
What is 5d=470 and what is 8a=47
Igoryamba
5d=470:

in this case we have to divide both sides by 5:

d=94

8a=47:

in this case we have to divide both sides by 8:

a=5.875

as a general rule, if you want to find out a value of a in
ab=c

you have to divide both sides of the equation by b (if it's not zero); then you will have left:

a=c/b

and if you calculate c/b, this will give you the answer


8 0
3 years ago
Read 2 more answers
an initial population of 5 squirrels increases by 9% each year for 10 years.using x for years and y for the number of squirrels,
ivann1987 [24]

Answer:

Equation: y(1.09)^x

After 10 years there will be about 12 squirrels.

Step-by-step explanation:

y(1.09)^x

=5(1.09)^10

=(approx.) 12 squirrels

5 0
2 years ago
Other questions:
  • As part of quality-control program, 3 light bulbs from each bath of 100 are tested. In how many ways can this test batch be chos
    13·1 answer
  • Find three consecutive even integers such that 3 times the first is 26 less than twice the sum of the last two
    14·1 answer
  • What is the lcd of 10/11,29/44
    15·1 answer
  • How can place value help me divide?
    11·1 answer
  • How do u graph y=-4x+2 y=x-3
    12·1 answer
  • choose the equation below that represents the line passing through the point (2, −4) with a slope of one half. a. y = 1/2x 5 b.
    11·1 answer
  • What is the general rule for the sequence?<br> 1.11, 2.54, 3.97, 5.40, ...
    14·2 answers
  • Please Help! What is the distance between points (2, 8) and (7, 5)? Round to the nearest tenth of a unit.
    15·2 answers
  • Allie needs at least 50 hours of community service for social studies class. She already has 20. How many more hours does she ne
    14·2 answers
  • The drama club sold tickets for the school play at $5 each. A ticket for the dress rehearsal cost $2. The club sold four times a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!