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klio [65]
3 years ago
15

Solve by completing the square. x2 + 12x + 8 = 0

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0
X= -4/7 please help me out now and answer number 10 on my questions
You might be interested in
Please help!
photoshop1234 [79]
PART A
rectangle : circle
              5:13
PART B
5x3 : 13x3
  15 : 39
Hope this helped! :)
5 0
3 years ago
Please HELP Will CROWN BRAINLIEST!!!!!!!!!!!!! 20PTS
Sladkaya [172]
2, sin( θ )=6/12=1/2 => theta=30 degrees.
=> triangle is 30-60-90 

3.
Cos(45)=sqrt(2)/2
=> x=10*sqrt(2)/2=5sqrt(2)
4 0
3 years ago
What is 33/7 as a mixed number
melamori03 [73]
33/7 is an improper fraction. 

To make it a mixed fraction, do this:-

How many times does 7 go into 33?

About 4 times.

4*7 = 28

4 is our whole number.

Now, subtract to get the numerator. 

33-28 = 5

4    5/7

Final answer:  4  5/7
5 0
3 years ago
Read 2 more answers
Please help on this one
VLD [36.1K]

C. 2x√x

HOPE THIS WILL HELP YOU

5 0
3 years ago
A researcher is wondering whether the smoking habits of young adults (18-25 years of age) in a certain city in the U.S. are diff
Usimov [2.4K]

Answer:

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

Null hypothesis: p=0.16

Alternative hypothesis:p \neq 0.16

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

Null hypothesis: p=0.16

Alternative hypothesis:p \neq 0.16

8 0
3 years ago
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