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Sergeu [11.5K]
2 years ago
6

What is the method used when the objective is to determine the cause and effect relationship of a certain phenomenon under contr

olled condition?
Mathematics
1 answer:
jenyasd209 [6]2 years ago
5 0

Answer: A

Explaination:
The cause and effect relationship of a certain phenomenon under controlled condition

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Solve for h<br> Give an exact answer.<br> 3h=7( 2/7− 3/7 h)−10
romanna [79]
Its -4/3
Thank You.
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En un salon de clases cuando se colocan cuatro alumnos en cada banca, 3 de ellos quedan sin puesto y cuando se colocan de a 5 en
Harlamova29_29 [7]

Answer: 5 benches and 23 students

Step-by-step explanation:

I will answer in English.

We have E students and B benches.

If we sit 4 students per bench, we have 3 students left.

then:

E = 4*B + 3

And if we sit 5 students per bench, there are two places with no students sited.

E = 5*B - 2

now we can replace the E in the second equation with the right part in the first equation:

4*B + 3 = 5*B - 2

3 + 2  = 5*B - 4*B

5 = B

So we have 5 benches, and:

E = 4*5 + 3 = 23 students.

5 0
3 years ago
How should I solve this? I tried to but I couldn't get past the quadratic formula.
xxMikexx [17]
First multiply all terms by z
8-z^2=4z

Then order into standard form
-z^2-4z+8=0

Multiply the equation by -1
z^2+4z-8=0

Plug into quadratic equation
-4±√16-4(-8)
-4±√48

(-4±4√3)/2
-2±2√3

Final answer: z=-2± 2√3
8 0
3 years ago
You flip a coin, spin the spinner, and flip a coin again. Find the probability of flipping heads, spinning an even number, and t
NNADVOKAT [17]

Answer:

1/10

Step-by-step explanation:

P heads,even,heads = P heads * P even *P heads =

1/2 * 2/5* 1/2 = 1*2*1/2*5*2= 1/10

7 0
3 years ago
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