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My name is Ann [436]
3 years ago
12

Which of these variables could be investigated ONLY through observational studies?

Mathematics
2 answers:
LiRa [457]3 years ago
4 0

Answer:

BRUH

Step-by-step ex planation:

bruh moment so yeah thats the answer gimme them point

Mashcka [7]3 years ago
4 0

Answer:

I think its B

Step-by-step explanation:

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Choose correct response
Illusion [34]

Answer:

D

Step-by-step explanation:

11.1/0.01=11.1*100=1110

7 0
2 years ago
At a department store, Kendra has a debt greater than $25.00. Which could be Kendra’s balance?
jeka57 [31]
Debt is negative dollars, which means she owes at least 25 dollars to the department store

her balance is -25.00 + x

hope this helps

or -25 >x


5 0
3 years ago
Read 2 more answers
PLEASE HELP!! Compare & Contrast how Completing the Square is used to Convert a quadratic function to vertex form with how i
Likurg_2 [28]

Answer:

Step-by-step explanation:

Given a general quadratic formula given as ax²bx+c = 0

To generate the general formula to solve the quadratic equation, we can use the completing the square method as shown;

Step 1:

Bringing c to the other side

ax²+bx = -c

Dividing through by coefficient of x² which is 'a' will give:

x²+(b/a)x = -c/a

- Completing the square at the left hand side of the equation by adding the square of half the coefficient x i.e (b/2a)² and adding it to both sides of the equation we have:

x²+(b/a)x+(b/2a)² = -c/a+(b/2a)²

(x+b/2a)² = -c/a+(b/2a)²

(x+b/2a)² = -c/a + b²/4a²

- Taking the square root of both sides

√(x+b/2a)² = ±√-c/a + b²/√4a²

x+b/2a = ±√(-4ac+b²)/√4a²

x+b/2a =±√b²-4ac/2a

- Taking b/2a to the other side

x = -b/2a±√√b²-4ac/2a

Taking the LCM:

x = {-b±√b²-4ac}/2a

This gives the vertex form with how it is used to Solve a quadratic equation.

7 0
3 years ago
What is -12.4 + 9.2 + +1
Sveta_85 [38]
Your answer would be -2.2

8 0
3 years ago
Read 2 more answers
Because hit 7 more home runs than Beverly. Because hit 22 home runs. How many home runs did Beverly hit?
nekit [7.7K]
The answer choice isn't even up there. The answer is 15. Since Because hit 22 home runs; you would just subtract to find the number of Beverly's home runs since it says "7 more home runs than Beverly".


22 - 7= 15.

Hopefully this helps 



7 0
3 years ago
Read 2 more answers
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