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
hammer [34]
3 years ago
8

I can't solve this equation pleas help!x^2+2x+8=0

Mathematics
1 answer:
tiny-mole [99]3 years ago
8 0
x^2+2x+8=0\\
x^2+2x+1+7=0\\
(x+1)^2=-7\\
x+1=-\sqrt{-7} \vee x+1=\sqrt{-7}\\
x=-1-\sqrt7 i \vee x=-1+\sqrt7 i
You might be interested in
Help!, i honestly forgot this lol
jeka94

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help pls!! I’ll give Brainlist!! For questions 1-5 determine if the quadrilaterals are parallelograms or not. Beside the picture
tia_tia [17]

Answer:

1. no

2. yes

3. yes

4. yes

5. no

Step-by-step explanation:

plz mark me as brainliest

8 0
2 years ago
Read 2 more answers
What is 25% of 24?<br> What is 15% of 60?<br> 9 is what percent of 72
JulsSmile [24]

Answer:

6

9

6.48

Step-by-step explanation:

this is the easiest way to solve for percentage:

\frac{part}{whole} =\frac{part}{whole}  Where all the percents (except 100) would go in part

and the whole number would go in whole

\frac{25}{100} =\frac{?}{24}  Then multiply 24 × 25 ÷ 100 = 6

\frac{15}{100} =\frac{?}{60}  Multiply 60 by 25 then divided by 100 = 9

Then for the last one 9 is what percent of 72

all we have to do is multiply 9 and then convert 72 into a decimal (0.72)

Then 9 × 0.72 = 6.48

7 0
3 years ago
Corinna's cell phone bill was $52.75 in July.
rodikova [14]

Answer:

The answer is 21.10

Explanation:

If her bill in July was $52.75 and her bill in August was only 60% of July

60% of 52.75 is 31.65

and they asked how much more she paid:

52.75-31.65 = 21.10

hope this helps!

7 0
2 years ago
Bag a contains 4 red and 3 blue tickets. bag b contains 3 red and 1 blue ticket. a bag is randomly selected by tossing a coin an
nikdorinn [45]
It's difficult to draw a tree diagram with this software.
Try to do it yourself & you will find the followings:

If A is selected (P(A) =1/2) we can get ether red (p(A & red)=4/7
so P(A∩red)= 1/2 x 4/7 = 4/14
Also we can get P(blue) = 3/7   & P(A∩blue) = 1/2 x 3/7 = 3/14

Same reasoning for B & you will get P(B∩read) 1/2 x 3/4 = 3/8
Also we can get  P(B∩blue) = 1/2 x 1/4 = 1/8
Probability of blues is either 3/14 or 1/8
P(blue) = 3/8 +1/8 =19/56 = 0.339
6 0
2 years ago
Other questions:
  • 1/2x-5=10 find and justify each step
    14·2 answers
  • 7th grade math I need some help
    9·1 answer
  • If sin x = .42, what is cos x?
    6·1 answer
  • Find the slope of the line that passes through the pair of points
    14·1 answer
  • Given the figure above, determine​
    9·2 answers
  • I have a pile of socks which contains 12 white socks, 12 black socks, and 12 red socks. How many socks must I take from the pile
    5·2 answers
  • For each triangle check all that apply
    14·1 answer
  • A ceramic vase that cost an antique store $7 was marked $63. What is the percentage markup on the price of the ceramic vase?
    11·1 answer
  • HELPPP PLSSSS ITS ALMOST DUE IN 1 HOUR WILL GIVE BRAINLIEST THANKS AND 5 STARSSS
    9·1 answer
  • The two-way table given shows the results from a survey of pet owners.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!